US Pat. No. 9,512,004

METHOD FOR OPERATING A STEAM REFORMING PLANT

Linde Aktiengesellschaft,...

1. A method for producing synthesis gas having different hydrogen/carbon monoxide quantitative product ratios in a steam reforming
plant, the steam reforming plant comprising:
at least one steam reforming reactor;
at least one processing unit;
at least one pressure-swing adsorption plant; and
at least one recycle compressor;wherein the method comprises:
reacting a hydrocarbon-rich feed with steam in the at least one steam reforming reactor to form synthesis gas;
separating carbon dioxide and carbon monoxide from the synthesis gas in the at least one processing unit to form a hydrogen-rich
fraction;

separating a residual gas from the hydrogen-rich fraction in the at least one pressure-swing adsorption plant;
producing synthesis gas having a hydrogen/carbon monoxide quantitative product ratio of less than 4 by recycling at least
a part of the carbon dioxide separated from the synthesis gas to the hydrocarbon-rich feed using the at least one recycle
compressor; and

producing synthesis gas having a hydrogen/carbon monoxide quantitative product ratio of 4 or higher by recycling at least
a part of the residual gas separated from the hydrogen-rich fraction to the hydrogen-rich fraction upstream of the at least
one pressure-swing adsorption plant using the at least one recycle compressor.

US Pat. No. 9,138,177

VISUALIZATION AND ENHANCEMENT OF LATENT FINGERPRINTS USING LOW PRESSURE DYE VAPOR DEPOSITION

Linde Aktiengesellschaft,...

1. An apparatus for developing latent fingerprints comprising:
a vapor delivery chamber for containing source materials to be vaporized;
a vacuum deposition chamber for containing an article having latent fingerprints to develop communicating with the vapor delivery
chamber;

a vacuum pump communicating with the vapor delivery chamber and with the vacuum deposition chamber for evacuating the vapor
delivery chamber and the vacuum deposition chamber;

heating means communicating with the vapor delivery chamber for heating the source materials within the vapor delivery chamber;
a carrier gas source in communication with the vapor delivery chamber for providing a metered flow of carrier gas to the vapor
delivery chamber, the carrier gas for transporting vaporized source materials from the vapor delivery chamber to the vacuum
deposition chamber.

US Pat. No. 9,044,789

METHOD FOR DEICING AND CLEANING FANS

Linde Aktiengesellschaft,...

1. A method for removing and cleaning of ice layers, snow layers and/or dirt layers from rotor blades of axial fans in a cooling
installation for refrigerating and/or freezing products, comprising:
directing at least one cleaning jet toward a suction side of the rotor blades of an axial fan and directing at least another
cleaning jet toward a pressure side of said rotor blades within certain time intervals such that said layers are at least
separated from surfaces of the rotor blades and transported away, the at least one cleaning jets comprising a gas selected
from the group consisting of dehumidified compressed air, nitrogen, carbon dioxide; and mixtures of nitrogen and carbon dioxide,
mixtures of nitrogen and dehumidified compressed air, mixtures of carbon dioxide and dehumidified compressed air, and mixtures
of nitrogen, carbon dioxide and dehumidified compressed air, and

rotating the rotor blades with nominal speed while the at least one of the cleaning jets act upon the surfaces of the rotor
blades.

US Pat. No. 9,157,369

WASTE HEAT UTILIZATION FOR ENERGY EFFICIENT CARBON CAPTURE

Linde Aktiengesellschaft,...

1. A method for recovering carbon dioxide from a solvent regeneration process comprising the steps: a) Feeding a flue gas
from a boiler of a power plant to a waste heat recovery unit, wherein the flue gas is treated for impurities prior to it being
fed to the waste heat recovery unit; b) Capturing heat in the waste heat recovery unit from the flue gas; and c) Feeding the
heat to the solvent regeneration process, and further feeding heat from the glue gas to water form a boiler feed water heater
present in the waste heat recovery unit thereby recirculating water through the heat exchanger in the waste heat recovery
unit to the boiler feed water heater.

US Pat. No. 9,527,002

METHOD AND APPARATUS FOR THE LOW-TEMPERATURE FRACTIONATION OF A FLUID MIXTURE

LINDE AKTIENGESELLSCHAFT,...

1. A method for low-temperature fractionation of a fluid mixture comprising:
introducing said fluid mixture into a separation column to produce a top gaseous product and a bottom liquid,
introducing at least part of said bottom liquid into a bottom evaporator wherein said bottom liquid is at least partially
evaporated in said bottom evaporator to form a vapor,

returning at least part of said vapor generated in the bottom evaporator to a lower portion of said separation column,
removing said top gaseous product from the top of said separation column, and
removing a bottom product from the bottom of said separation column or from said bottom evaporator,
wherein said bottom evaporator is heated by inductive heating.

US Pat. No. 9,475,696

METHODS FOR PRODUCING SYNTHESIS GAS FOR AMMONIA PRODUCTION

Linde Aktiengesellschaft,...

14. A method for producing ammonia comprising the steps:
a) Feeding a hydrocarbon and steam to a reformer;
b) Feeding the reaction products of the reformer to a separation unit whereby solids are separated from gases;
c) Feeding the solids to a regenerator and the gases to a shift reactor;
d) Recycling a flue gas stream comprising carbon dioxide, steam, nitrogen, and CaO from the regenerator through a cyclone
to the reformer;

e) Feeding the products of the shift reactor to a pressure swing adsorption unit.

US Pat. No. 9,139,492

METHOD FOR PROCESSING COKE OVEN GAS

LINDE AKTIENGESELLSCHAFT,...

1. A process for processing offgas from a coking plant, where the offgas contains hydrogen, said process comprising:
at least partly feeding said offgas, together with a gas containing carbon monoxide and/or carbon dioxide, into a process
for forming dimethyl ether wherein a dimethyl ether-containing product gas is formed,

setting a ratio of hydrogen to carbon monoxide weighted by the carbon dioxide concentration
of from 0.9 to 1.1 at the inlet of said process for forming dimethyl ether,
feeding said dimethyl ether-containing product gas to a process for converting dimethyl ether into olefins wherein an olefin-containing
product gas is formed, and

separating olefins from said olefin-containing product gas by means of a separation process.

US Pat. No. 10,092,876

RECOVERY OF GASES, ESPECIALLY PERMANENT GASES, FROM STREAMS OF MATTER, ESPECIALLY FROM OFFGAS STREAMS FROM POLYMERIZATIONS

Linde Aktiengesellschaft,...

1. A method of cleaning a stream of matter, wherein said stream of matter comprises a C2+ fraction, at least one first gaseous substance, and a different second gaseous substance, said method comprisingsubjecting said stream of matter to pressure swing adsorption to remove said C2+ fraction, and
after removal of the C2+ fraction, separating said stream of matter by means of a membrane, wherein said stream of matter is separated into a retentate and a permeate,
wherein said at least one first gaseous substance is enriched in the retentate and said second gaseous substance is depleted in the retentate, and said at least one first gaseous substance is depleted in the permeate and said second gaseous substance is enriched in the permeate.

US Pat. No. 9,153,794

THIN FILM ENCAPSULATION OF ORGANIC LIGHT EMITTING DIODES

Linde Aktiengesellschaft,...

1. A method for encapsulating an organic light emitting diode (OLED) device, the method comprising:
providing a fabricated organic light emitting diode having a substrate, an anode layer formed on the substrate, an organic
electroluminescent layer formed on the anode layer, and a cathode layer formed on the organic electroluminescent layer; and

treating the cathode layer to produce a passivation layer on a surface of the cathode layer
wherein treating comprises treating with plasma, UN-ozone, or wet chemicals.

US Pat. No. 9,222,729

PLANT AND METHOD FOR HOT FORMING BLANKS

Linde Aktiengesellschaft,...

16. A method for hot forming a blank, comprising:
moving at least one pre-mixing burner to a region of the blank to be heated, the at least one pre-mixing burner comprising
a plurality of nozzle opening, wherein each one of the plurality of nozzle openings comprises a diameter less than 2 mm, and
a distance between two adjacent nozzle openings is from between 1 mm and 4 mm;

supplying a gas mixture of fuel gas and oxygen to the at least one pre-mixing burner for generating a flame from said pre-mixing
burner;

heating the region with the flame of the at least one pre-mixing burner for particular austenitization of said region; and
pressing the blank.

US Pat. No. 9,359,200

METHOD FOR THE PARALLEL PRODUCTION OF HYDROGEN AND CARBON-CONTAINING PRODUCTS

BASF SE, Ludwigshafen (D...

1. A process for parallel preparation of hydrogen and a carbonaceous product, the process comprising introducing hydrocarbons
into a reaction space and thermally decomposing the hydrocarbons to carbon and hydrogen in the presence of carbon-rich pellets,
wherein:
at least a portion of thermal energy required for the hydrocarbon decomposition is provided by a gaseous heat carrier;
the thermal energy is produced outside the reaction space and the gaseous heat carrier thus heated is then introduced into
the reaction space;

the gaseous heat carrier is inert, constitutes a product formed by decomposition of the hydrocarbons, or both; and
the gaseous heat carrier releases heat to reactants in the reaction space.

US Pat. No. 9,500,296

TAMPER-RESISTANT VALVE AND CONNECTION ARRANGEMENT

Linde Aktiengesellschaft,...

1. An assembly of a gas cylinder fitted with a gas cylinder valve able to be opened by application of a pilot gas pressure,
and a yoke,
wherein the gas cylinder valve comprises a pilot gas chamber having an inlet connectable to a source of pressurised pilot
gas, and a displaceable member able to act in concert with a valve member to open and close a gas passage placing an interior
of the cylinder in communication with a cylinder gas port in the gas cylinder valve,

wherein the displaceable member is normally biased into a valve closing position, but is able to be displaced by the pilot
gas pressure against the bias from the valve closing position to a position in which the gas cylinder valve is open,

wherein the yoke is able to connect the pilot gas chamber to the source of pressurised pilot gas and the cylinder gas port
of the cylinder gas valve to an external cylinder gas passage,

wherein the displaceable member and the valve member are discrete and separate members, and
wherein the valve member has first and second opposed ends and has a passage therethrough extending from the first opposed
end to the second opposed end.

US Pat. No. 9,157,690

DISTRIBUTION SYSTEM AND HEAT EXCHANGER APPARATUS

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger device (100) comprising:
a container (27), having a fluid inlet (26), at least one plate heat exchanger block (28) arranged within said container (27), and a distribution system (101) that is arranged above said at least one plate heat exchanger block (28) in said container (27) for distributing a fluid (15) into said container (27) from said fluid inlet (26) of said container (27),

wherein said distribution system (101) comprises

a guide section (2) and a distribution section (3) that adjoins the guide section (2), wherein said distribution section (3) comprises regions (4, 5) having openings (8, 9) to allow fluid (17) to pass through,

wherein said guide section (2) and said distribution section (3) are formed from at least two guide plates that are arranged on one another and are essentially perpendicular to one another,

wherein one of said guide plates functions as said distribution section (3) and is a horizontal distribution plate which has said regions (4,5) with said openings (8, 9) to allow fluid (17) to pass through, and the other of said guide plates functions as said guide section (2) and is a baffle plate,

wherein said container (27) has a cylindrical shape and is arranged horizontally,

wherein said baffle plate (2) runs vertically along or parallel to the longitudinal axis of the cylindrically shaped container (27), and said distribution plate (3) runs horizontally along or parallel to the longitudinal axis of the cylindrically shaped container (27), and

wherein said distribution system (101) and a wall of said container (27) delimit a space (23) within said container (27), and said space (23) is in fluid communication with said fluid inlet (26) and is in fluid communication with said openings (8,9) in said distribution plate (3).

US Pat. No. 9,131,704

CARBON DIOXIDE BASED METHOD AND SYSTEM FOR THE HUMANE MASS CULLING OF POULTRY AND STERILIZATION OF REARING SHEDS

Linde Aktiengesellschaft,...

1. A method for humanely killing animals, particularly birds; comprising:
spraying liquid CO2 into a holding site (10) housing said animals (2) and evaporating said CO2;

exposing said animals to an atmosphere (3) in the holding site containing gaseous CO2;

asphyxiating said animals by exposing to said atmosphere; and
discharging a mixture of a purge gas (P) and at least one sterilizing agent (A) into the holding site.

US Pat. No. 9,527,069

METHOD FOR COLD GAS SPRAYING

Linde Aktiengesellschaft,...

1. A method for cold gas spraying, in which a spray powder containing photocatalytically active spray particles is accelerated
in a nozzle by means of a carrier gas and forms a coating upon impact with a substrate, characterized in that at least a part
of the photocatalytically active spray particles consists of nanocrystalline agglomerates that have a porosity from 200 to
800 m2/g, wherein the porosity is determined by a BET measurement using nitrogen and the nanocrystalline agglomerates have been
sintered to a hardness of between 0.1 and 4 GPa, wherein the hardness is measured with a nanoindenter.

US Pat. No. 9,322,598

PROCESS FOR THE HEAT TREATMENT OF STEEL STRIPS

Linde Aktiengesellschaft,...

1. A method for the heat treatment of steel products to be treated in a furnace, wherein a steel product in a booster zone
having at least one burner is brought from a starting temperature to a target temperature, the at least one burner operating
with a fuel and an oxygen-containing gas, the oxygen-containing gas including more than 21% oxygen and the steel product directly
contacting a flame generated by the at least one burner, the method comprising:
moving the steel product through the booster zone upstream of the furnace in a conveying direction to the furnace,
providing the flame in a direction transverse to the conveying direction and directly contacting the steel product with the
flame,

surrounding the steel product over its entire periphery with the flame provided transversely to the conveying direction, and
providing an air ratio ? within the flame set as a function of the starting temperature and/or the target temperature in the
booster zone.

US Pat. No. 9,170,048

DEVICE FOR THE CRYOGENIC SEPARATION OF AIR

Linde Aktiengesellschaft,...

1. A device for low-temperature separation of air comprising:
a main heat exchanger (6),

a distilling-column system for nitrogen-oxygen separation (5) comprising a double column (5), which contains a high-pressure column and a low-pressure column, and a mixed column (1), said distilling-column system having means for introducing charging air, via the main heat exchanger (6), into the high-pressure column and into the mixed column, a liquid oxygen line for introducing liquid oxygen from the low-pressure
column into an upper area of the mixed column (1), and an oxygen product line for withdrawing oxygen gas from the upper area of the mixed column (1) via the main heat exchanger (6),

wherein the mixed column (1) and the double column (5) are arranged in a shared coldbox (3), wherein the mixed column (1) is not supported from below, and

wherein the mixed column (1) is fastened via connecting elements (10, 11) laterally to the double column (5).

US Pat. No. 9,126,281

INTEGRATED FLOW METER

Linde Aktiengesellschaft,...

1. A device for measuring the flow rate of a shielding gas flow, the device being adapted to fit onto a cylinder supplying
the shielding gas, the device comprising a guard assembly for coupling to the cylinder and a flow meter incorporated into
the guard assembly and adapted to receive the nozzle of a welding torch.

US Pat. No. 9,109,587

MULTISTAGE PISTON COMPRESSOR

Linde Aktiengesellschaft,...

1. A multistage ionic piston compressor for a gaseous or cryogenically liquefied medium with at least two compressor stages,
which operatively interact with a shared drive train for purposes of joint powering, wherein each compressor stage exhibits
a piston that is mechanically connected with the drive train, and arranged in a compressor cylinder so that it can longitudinally
shift, characterized in that the piston of the respective compressor stage is in contact with a first liquid column of an
incompressible liquid situated in the compressor cylinder, which converts a piston stroke motion of the piston into a motion
of a compressor piston arranged in an upper portion of the compressor cylinder so that it can longitudinally shift, wherein
the first liquid column of the incompressible liquid is arranged in the compressor cylinder between the piston and the compressor
piston, and that the compressor piston of the respective compressor stage is in contact with a second liquid column of an
ionic operating liquid that is situated in the compressor cylinder, wherein the second liquid column of the ionic operating
liquid is arranged in the compressor cylinder on the top of the compressor piston and wherein the second liquid column of
the ionic operating liquid is in direct contact with the medium and used to compress the medium, wherein the compressor piston
is designed as a phase separator separating the first liquid column and the second liquid column, wherein the first liquid
column for changing a compressor stroke of the compressor piston can be connected with an outlet.

US Pat. No. 9,067,461

GAS PRESSURE CONTROL VALVE

Linde Aktiengesellschaft,...

1. A gas pressure control valve comprising:
a valve body having a gas inlet and a gas outlet;
an inner cap bounding in part a chamber within the valve body wherein the chamber is in communication with the gas inlet;
a spring loaded piston contained within the valve body, the piston comprising a piston head and a piston rod, the piston rod
including a conduit providing communication between the chamber bounded in part by the inner cap and interior of the valve
body adjacent the piston head and the gas outlet;

wherein the piston is operable to move between a closed configuration in which the piston rod prevents communication between
the gas inlet and the chamber bounded in part by the inner cap and an open configuration in which the piston rod permits communication
between the gas inlet and the chamber bounded in part by the inner cap;

wherein the piston head is in a sealing engagement with the valve body via a first seal and the piston rod is in a sealing
engagement with the inner cap via a second seal contained within the chamber bounded in part by the inner cap, the second
seal being held in a fixed position within the chamber; and

wherein the valve body further comprises a collar adjacent the gas inlet wherein the second seal is held in a fixed position
between the collar and the inner cap.

US Pat. No. 9,266,731

PROCESS FOR PRODUCTION OF SYNTHESIS GAS

LINDE AKTIENGESELLSCHAFT,...

1. A process for producing synthesis gas, comprising:
introducing methane and carbon dioxide as gaseous reactants into a reaction chamber and reacting methane and carbon dioxide
in said reaction chamber in a bed of carbon-containing solids to give a gaseous product stream containing hydrogen and carbon
monoxide,

wherein said bed is guided through said reaction chamber as a moving bed, and the synthesis gas formed in said reaction chamber
flows upward countercurrent to said moving bed and is cooled by direct heat exchange with said carbon-containing solids, and

wherein said moving bed flows through said reaction chamber solely under the action of gravity.
US Pat. No. 9,090,543

METHOD FOR PRODUCING DIMETHYL ETHER FROM METHANE

Linde Aktiengesellschaft,...

1. A process for production of dimethyl ether from methane (11) comprising:
a dry-reforming step (21), wherein methane (11) and carbon dioxide (12) are converted into carbon monoxide and hydrogen, and

a synthesis step (22), wherein the carbon monoxide and hydrogen formed in the dry-reforming step (21) are converted into a dimethyl ether (13) and carbon dioxide,

wherein the dry-reforming step (21) and the synthesis step (22) are carried out at pressures which do not differ by more than 3 bar.

US Pat. No. 9,285,164

COLD BOX SHEET METAL JACKET

LINDE AKTIENGESELLSCHAFT,...

1. A process for producing an enclosure for parts of a low-temperature air separation system, the enclosure having a base
surface and side walls that extend perpendicular to said base surface, said process comprising: forming several panels, each
panel comprising a metal frame (3, 4) and a sheet metal lining (8), wherein, in each of said panels, said frame is attached to the periphery of said sheet metal lining, said frames being
provided with diagonal braces made from round pipes mounted on said frames, attaching one or more walkways to panels of said
enclosure before assembly of the enclosure, then connecting said panels (3, 4) to one another to form the enclosure around one or more parts of the low-temperature air separation system; and then filling
the enclosure with thermal insulation material.

US Pat. No. 9,272,908

GAS STREAM PURIFICATION APPARATUS

Linde Aktiengesellschaft,...

1. An apparatus for removing contaminants from a gas stream, comprising:
a container having a reaction chamber therein for receiving the gas stream;
a gas-liquid contact assembly disposed in the reaction chamber;
a sump disposed in the reaction chamber beneath the gas-liquid contact assembly, the sump constructed of a material that can
receive and contain a liquid scrubbing agent;

an adsorbent cartridge disposed in the sump to adsorb contaminants in the liquid scrubbing agent;
a first inlet in communication with the sump for providing a reactive species to the liquid scrubbing agent in the sump for
producing an oxidizing solution;

a second inlet in communication with the reaction chamber for providing the gas stream to the reaction chamber between the
gas-liquid contact assembly and the sump; and

a feed line having a first end in communication with the sump and a second end having an outlet in communication with the
reaction chamber above the gas-liquid contact assembly for dispensing the oxidizing solution to contact the gas-liquid contact
assembly.

US Pat. No. 9,151,492

HEATING APPARATUS

Linde Aktiengesellschaft,...

1. An apparatus for heating a blast furnace stove having a combustion region (101) and a combustion gas outlet (106) associated with the combustion region, the apparatus comprising:
a) a source of lower calorific value fuel;
b) a first pipeline (320) operable to distribute the lower calorific value fuel from the source thereof to the combustion region;

c) a source of air;
d) a second pipeline (310) operable to distribute the air from the source thereof to the combustion region;

e) a source of oxidant (351) comprising at least 85% by volume of oxygen;

f) a third pipeline (350) operable to distribute the oxidant from the source thereof to the combustion region;

g) a fourth pipeline (340) operable to conduct combustion gas from the combustion gas outlet away from the blast furnace stove;

h) a fifth pipeline (360) operable to return a portion of the combustion gas to the combustion region; and

i) means (393) for selectively introducing the oxidant from the third pipeline (350) into the second pipeline (310) for the oxidant to be distributed with the air into the combustion region (101).

US Pat. No. 9,383,102

METHODS FOR TREATING WASTE GAS STREAMS FROM INCINERATION PROCESSES

Linde Aktiengesellschaft,...

1. A method for removing contaminants from a gas stream exiting an incineration device comprising the steps:
a) Feeding waste, fuel and an air supply to a combustion chamber in the incineration device;
b) Feeding oxygen to a mixture of the waste, fuel and air supply;
c) Combusting the mixture thereby forming a combustion waste gas stream containing contaminants;
d) Feeding the combustion waste gas stream to a quench unit; whereby the combustion waste gas stream is reduced in temperature
and the formation of additional contaminants is reduced;

e) Feeding the combustion waste gas stream to a reaction zone;
f) Feeding ozone to the reaction zone whereby the ozone and combustion waste gas stream remain in contact for a predetermined
period of time; and

g) Feeding the combustion waste gas stream to a scrubber, wherein the contaminants are removed.

US Pat. No. 9,233,317

COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. A column comprising:
a jacket (10) that extends along a longitudinal axis (L), said jacket bounding a first jacket space (M) and a second jacket space (M?),
arranged over said first jacket space (M), along said longitudinal axis (L),

a chimney tray (20) that separates the first and second jacket spaces (M, M?) from one another and extends in a direction crosswise to said
longitudinal axis (L),

at least a first chimney (30) extends from said chimney tray (20) along said longitudinal axis (L) and projects into said second jacket space (M?), whereby said at least a first chimney
(30) has a peripheral wall (31) extending along said longitudinal axis (L), which defines an opening (32), via which said first and second jacket spaces (M, M?) are connected to one another for gas feed, wherein said opening (32) is covered by a chimney top (33), in such a way that a liquid phase (F) that flows downward along said longitudinal axis (L) into said second jacket space
(M?) is prevented from flowing through said opening (32) into said first jacket space (M),

a flat impact element (300) is positioned on said peripheral wall (31) and is arranged tilted toward said longitudinal axis (L) in such a way that a liquid phase (F) that flows downward from
said chimney top (33) along said longitudinal axis (L) strikes said flat impact element (300) to diminish momentum input of liquid phase (F) that stands on said chimney tray (20).

US Pat. No. 9,072,157

DEVICE FOR PROVIDING A FLOW OF ACTIVE GAS

Linde Aktiengesellschaft,...

1. A device for providing a flow of partially ionised non-thermal gaseous plasma for treatment of a treatment region, the
device comprising:
a housing containing a gas source and an electrical power source;
an applicator head configured for location adjacent the treatment region and defining a plasma cell having a cell inlet and
a cell outlet, the applicator head also having a plurality of electrodes;

wherein the applicator head is detachable from the device and wherein gas from the gas source is delivered to the plasma cell
through the cell inlet and is ionised by the electrodes using energy from the power source, and wherein the gaseous plasma
is discharged to the treatment region through the cell outlet.

US Pat. No. 9,505,679

PROCESS FOR PREPARING OLEFINS BY THERMAL STEAMCRACKING IN CRACKING FURNACES

Linde Aktiengesellschaft,...

1. A process for converting hydrocarbon feeds by thermal steamcracking to an olefin-containing product stream comprising at
least ethylene and propylene, with at least partial conversion of a first hydrocarbon feed in at least one first cracking
furnace (1) and of a second hydrocarbon feed in at least one second cracking furnace (2), characterized in that the second hydrocarbon feed is converted in the second cracking furnace (2) with cracking conditions that lead to a ratio of propylene to ethylene of 0.7 to 1.6 kg/kg at the cracking furnace outlet,
and in that the first hydrocarbon feed is converted in the first cracking furnace (1) with cracking conditions that lead to a ratio of propylene to cethylene of 0.25 to 0.85 kg/kg at the cracking furnace exit,
the value for the ratio of propylene to ethylene for the second hydrocarbon feed being above the value for the ratio of propylene
to ethylene for the first hydrocarbon feed and the second hydrocarbon feed predominantly comprising hydrocarbons having a
maximum carbon number of 5.

US Pat. No. 9,249,702

DEVICE WITH LUBRICANT PROTECTION ARRANGEMENT AND LUBRICATING METHOD

Linde Aktiengesellschaft,...

1. A device (10) comprising:
at least two friction members (11, 12) to be lubricated by the device,

at least one lubricant reservoir (14) for a lubricant, the at least one lubricant reservoir arranged as a sump within the device and at least partially surrounding
the at least two friction members, and

at least one lubricant protection arrangement disposed at and operatively associated with the at least one lubricant reservoir,
the at least one lubricant protection arrangement comprising flow means (15, 16) and a lubricant protection gas able to flow through the lubricant in the lubricant reservoir and through the device, wherein
the lubricant protection gas is oxygen-free and is selected from the group consisting of argon, nitrogen, carbon dioxide,
carbon monoxide, acetylene, and a mixture of at least two of said gases.

US Pat. No. 9,228,778

DEVICE FOR THE LOW-TEMPERATURE SEPARATION OF AIR

LINDE AKTIENGESELLSCHAFT,...

1. An apparatus for the low-temperature separation of air comprising:
a main heat exchanger (6) which comprises at least two heat-exchanger blocks,

a distillation column system for nitrogen-oxygen separation (5) that has at least one high-pressure column,

a subcooling-counterflow heat exchanger (2) which is separate from the main heat exchanger and is formed by a heat-exchanger block,

a pipeline for introducing feed air via the main heat exchanger (6) into the high-pressure column,

a pipeline for introducing a liquid stream from the distillation column system for nitrogen-oxygen separation (5) into the subcooling-counterflow heat exchanger (2),

a pipeline for introducing a gas stream (16) from the distillation column system for nitrogen-oxygen separation (5) into the subcooling-counterflow heat exchanger (2),

wherein the main heat exchanger (6) and the subcooling-counterflow heat exchanger (2) are arranged in a first cold box (12),

the top end of the subcooling-counterflow heat exchanger (2) is arranged below the bottom end of the main heat exchanger (6), and

the subcooling-counterflow heat exchanger (2), via at least one pipeline (17, 18, 19) which provides fluid communication between the main heat exchanger (6) and subcooling-counterflow heat exchanger (2), is suspended from the main heat exchanger (6), and said at least one pipeline (17, 18, 19) is the sole means for suspending the subcooling-counterflow heat exchanger (2) from the main heat exchanger (6).

US Pat. No. 9,285,078

PRESSURE VESSEL

Linde Aktiengesellschaft,...

1. A pressure vessel apparatus for storage of compressed gas, comprising:
(a) a pressure vessel for containing the compressed gas, the pressure vessel including an outer plastic shell, said outer
plastic she comprising a recess therein and a pair of integral handles;

(b) an inner liner of material selected from the group consisting of fibre-reinforced liner and fibre-wrapped liner encased
by the outer plastic shell;

(c) a shut-off valve in engagement with a mouth of the pressure vessel;
(d) an external pressure sensor device for sensing pressure of a gas in the pressure vessel, the external pressure sensor
device being in continuous communication with an interior of the pressure vessel and being adapted to generate a first signal
which is a function of the pressure sensed in the pressure vessel;

(e) a temperature sensor device for sensing temperature of the gas in the pressure vessel, the temperature sensor device being
in thermal communication with the interior of the pressure vessel and being adapted to generate a second signal which is a
function of the temperature sensed of the gas;

(f) a programmable computing device for calculating information about the gas in the pressure vessel from the first and second
signals; and

(g) a display screen operatively associated with the programmable computing device and disposed in the recess under a handle
of the pair of handles for being protected and displaying said information.

US Pat. No. 9,365,918

METHOD AND APPARATUS FOR THERMAL SPRAYING

Linde Aktiengesellschaft,...

1. An apparatus for cold spraying, comprising a spraying unit, a particle supply, a gas supply, and at least one heating unit,
characterized in that the at least one heating unit contains a graphite felt that can be heated with an electric heater current,
through which a gas stream can flow, wherein the at least one heating unit is arranged separately and/or in a pressure tank
through which the gas stream can flow, wherein the at least one heating unit comprises at least two channels that can carry
the gas stream and are filled with the graphite felt heatable by electric heater current, contacting devices for selectively
contacting the graphite felt in the at least two channels with the electric heater current, and wherein the contacting devices
compress the graphite felt when exposed to the gas stream.

US Pat. No. 9,295,535

DEVICE FOR GENERATING GASEOUS SPECIES

Linde Aktiengesellschaft,...

1. A self-contained, hand held, hand operated device for generating a flow of a non-thermal gaseous species, comprising:
a housing having a length of 30 cm or less, and a breadth of 5 cm or less, the housing containing;
a gas capsule holding a gas under pressure wherein the gas may be released from the capsule;
a reaction generator for receiving gas released from the capsule and for generating the gaseous species;
a conduit connecting the gas capsule to the reaction generator;
a source of electrical energy; and
energizing means electrically connected to the source of electrical energy for generating the gaseous species in the reaction
generator;

a control for selectively releasing gas from the gas capsule, wherein the control is operably connected to the energizing
means for controlling activation thereof; and

a sensor for sensing the flow of gas released from the gas capsule, wherein the control allows activation of the energizing
means only if the flow of gas is above a predetermined mass or volume flow rate.

US Pat. No. 9,273,913

HEAT EXCHANGER WITH CENTRAL PIPE AND RING CHANNEL

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger comprising:
a tube bundle (10) comprising a plurality of tubes wound around a central pipe (100),

a shell (20) enclosing said tube bundle (10) and defining a shell space (200) that surrounds said tube bundle (10), and

a liquid distributor (30) comprising distributor arms (300) for distributing a liquid (F) into said shell space (200) and onto said tube bundle (10), and drain pipes (340) for supplying said distributor arms (300) with liquid (F), wherein said distributor arms (300) are connected in a flow-guiding manner to a ring channel (400) that is positioned along the periphery of the shell (20), whereby liquid can flow from said ring channel (400) via said drain pipes (340) directly into said distributor arms (300), and

wherein said central pipe (100) provides for degassing liquid (F) to be distributed that is accumulated in said distributor arms (300), and said central pipe (100) is connected in a flow-guiding manner to said distributor arms (300).

US Pat. No. 9,174,900

METHOD FOR PRODUCTION OF CO, H2 AND METHANOL-SYNTHESIS GAS FROM A SYNTHESIS GAS, IN PARTICULAR FROM ACETYLENE OFF-GAS

LINDE AKTIENGESELLSCHAFT,...

1. A method for production of a methanol-synthesis gas product stream (2) from an H2- and CO-containing synthesis gas stream (5), said method comprising:
portioning said H2- and CO-containing synthesis gas stream (5) into a first and a second synthesis gas substream (51, 52), and converting (100) only CO contained in said first synthesis gas substream (51) to CO2 and H2 by using steam admixed to said first synthesis gas substream (51),

scrubbing (102) the converted first synthesis gas substream (51) and a first part (52a) of said second synthesis gas substream (52), each in a separate column, with an amine-containing scrubbing medium to scrub out CO2,

forming said methanol-synthesis gas product stream (2) from a first part (51a) of the scrubbed converted first synthesis gas substream (51) and/or a second part (52b) of said second synthesis gas stream (52), in such a manner that a ratio of (H2-CO2)/(CO+CO2) that is required for the methanol synthesis is established in the methanol-synthesis gas product stream (2), wherein

the scrubbed first part (52a) of said second synthesis gas substream (52) is further treated to produce a CO product stream (4) and a H2 product stream (3), and wherein

a second part (51b) of said scrubbed converted first synthesis gas substream (51) is further treated to produce said H2 product stream (3).

US Pat. No. 9,157,682

FURNACE ATMOSPHERE GENERATOR

Linde Aktiengesellschaft,...

1. A heat treatment furnace, comprising:
a heating zone;
a cooling zone; and
a gas generator disposed within the furnace and in heat exchange contact with the heating zone and the cooling zone, said
gas generator including an inlet connected to a liquid methanol feed line through which liquid methanol is provided to said
generator in which said liquid methanol is dissociated, and at least one gas outlet in communication with the furnace for
dissociated methanol.

US Pat. No. 9,090,463

METHOD FOR PRODUCING GAS PRODUCTS FROM SYNGAS

Linde Aktiengesellschaft,...

1. A method for recovering a first gas product (13) consisting essentially of hydrogen and a second gas product (12) containing hydrogen and carbon monoxide, said method comprising:
generating a synthesis gas (4) by partial oxidation (POX) from a production substance (3) containing a coal and/or heavy oil,

transforming said synthesis gas by conversion (S), followed by drying and removal of acid gases (A), to form a hydrogen-rich
gas mixture (6), and

decomposing the hydrogen-rich gas mixture (6) into a hydrogen fraction (7) of product purity and a residue gas (8) containing hydrogen and carbon monoxide,

wherein at least a part (10) of the residue gas (8) containing hydrogen and carbon monoxide is used to recover the second gas product (12) containing hydrogen and carbon monoxide, and

wherein said at least a part (10) of said residue gas (8) containing hydrogen and carbon monoxide is mixed with a part (9) of the hydrogen fraction (7) having product purity in order to produce the second gas product (12), and wherein the remainder of hydrogen fraction (7), after part (9) is removed, forms said first gas product (13).

US Pat. No. 9,389,015

METHOD FOR SEPARATING C2+-HYDROCARBONS OR C3+-HYDROCARBONS FROM A HYDROCARBON-RICH FRACTION

LINDE AKTIENGESELLSCHAFT,...

1. A method for separating C2+-hydrocarbons or C3+-hydrocarbons from a hydrocarbon-rich fraction, said method comprising:
a) partially condensing the hydrocarbon-rich fraction is,
b) separating the partially condensed hydrocarbon-rich fraction into a gaseous fraction and a liquid fraction,
c) subjecting said gaseous fraction and said liquid fraction to rectification fractionation to produce a methane-rich fraction
and a C2+- or C3+-hydrocarbon-rich fraction,

d) compressing the methane-rich fraction obtained from the rectification fractionation,
e) condensing a partial stream of the compressed methane-rich fraction and feeding the condensed partial stream of the compressed
methane-rich fraction as reflux to the rectification fractionation,

f) providing at least three heating circuits via which intermediate fractions withdrawn from the rectification fractionation
are partially evaporated and fed back to the rectification fractionation,

g) wherein at least the intermediate fractions circulating in the two heating circuits located at the highest temperature
levels are partially evaporated against the hydrocarbon-rich fraction that is to be partially condensed,

wherein
removal of the intermediate fraction circulating in the heating circuit located at the highest temperature level is at least
temporarily interrupted,

during the temporary interruption of removal of the intermediate fraction circulating in the heating circuit located at the
highest temperature level, a partial stream of a bottom fraction obtained from the rectification fractionation is partially
evaporated against an external medium and is fed as a bottom heating to the rectification fractionation, and

during the temporary interruption of removal of the intermediate fraction circulating in the heating circuit located at the
highest temperature level, the other two intermediate fractions, in each case at the temperature level at which the intermediate
fraction circulating in the heating circuit located at the next-higher temperature level was partially evaporated, are partially
evaporated.

US Pat. No. 9,181,123

THERMAL IMAGING TO OPTIMIZE FLAME POLISHING

Linde Aktiengesellschaft,...

1. A process for optimizing flame polishing of a glass product, comprising:
subjecting the glass product to heating parameters related to the glass product;
first sensing of a first thermal image representing a first temperature of the glass product;
polishing the glass product with a flame;
second sensing of a second thermal image representing a second temperature of the glass product after the polishing of the
glass product with the flame; and

adjusting parameters of the flame polishing as necessary based upon the second sensing of the second thermal image of the
glass product.

US Pat. No. 9,221,008

GAS PREPURIFICATION PROCESS

Linde Aktiengesellschaft,...

1. A method for removing impurities from a feed gas stream containing impurities comprising the steps: a) feeding the feed
gas stream to a first adsorption vessel containing an ionic liquid selected from the group consisting of imidazolium, pyridinium,
pyrrooidinium, guanidinium, ammonium, phosphonium, and sulphonium-based ionic liquids, or mixtures thereof having the structures:

wherein R1, R2, R3, and R4 are different alkyl and alkenyl groups and are selected from the group consisting of hydrogen, and straight or branched chain
alkyl and alkenyl groups having from 1 to 12 carbons further comprising an amine selected from the group consisting of thiourea
and amino groups being present in said ionic liquid and a hydroxyl group being incorporated into said cation wherein the impurities
are removed from the feed gas stream; b) directing a portion of the feed gas stream free of impurities to a second bed, wherein
the gas stream free of impurities regenerates the ionic liquid present in the second bed; and c) directing the remaining portion
of the feed gas stream free of impurities to a cryogenic distillation unit.

US Pat. No. 9,335,102

PLATE HEAT EXCHANGER WITH SEVERAL MODULES CONNECTED BY SHEET-METAL STRIPS

LINDE AKTIENGESELLSCHAFT,...

1. A plate heat exchanger (1) comprising:
at least two modules (1a, 1b), wherein each module (1a, 1b) has a plurality of stacked passages (3) through which heat-exchanging media can flow in alternation and which are separated from one another by partitions (4),

said modules (1a, 1b) are each of cuboidal shape and are bordered on the outsides by cover sheets (5),

said modules (1a, 1b) are arranged next to one another such that one rectangular side (9a) of one cuboidal module (1a) of said at least two modules is directly adjacent to a corresponding rectangular side (9b) of another cuboidal module (1b) of said at least two modules,

each of modules having fittings (6) for supplying and discharging heat-exchanging media (A, B, C, D, E) and headers (7) for distributing and collecting heat-exchanging media (A, B, C, D, E) to the individual passages (3) or from the individual passages (3), and wherein at least two modules (1a, 1b) have a common (7) header, and

each of two cover sheets (5) that each form directly adjacent sides (9a, 9b) of two adjacent modules (1a, 1b) form a contact surface (9a, 9b) and these contact surfaces (9a, 9b) are joined to one another, so that a mechanical and heat-conductive connection is formed between the two adjacent modules
(1a, 1b), via a plurality of separate and individual sheet-metal strips (10), each of said sheet-metal strips having two opposing faces wherein one of said opposing faces is joined via adhesive to
the cover sheet (5) of one of said two adjacent modules (1a, 1b) and the other of said opposing faces is joined via adhesive to the cover sheet (5) of the other of said two adjacent modules (1a, 1b), and wherein said plurality of said sheet-metal strips (10) is arranged regularly on at least one of said contact surfaces (9a, 9b) such that the entire surface (9a, 9b) of said at least one of said contact surfaces (9a, 9b) is covered by said sheet-metal strips (10) free of gaps.

US Pat. No. 9,440,188

METHOD FOR REMOVING CONTAMINANTS FROM EXHAUST GASES

LINDE AKTIENGESELLSCHAFT,...

1. A method for the partial removal of contaminants from a process gas stream comprising the steps of:
conveying a stream of untreated process gas through an inlet of a scrubber into a scrubbing zone of the scrubber,
dividing the gas stream at the scrubber inlet free of any physical obstruction in the scrubber extending the length of the
scrubber from the inlet to an outlet into a plurality of process gas streams partitioned from one another,

feeding ozone into contact with selected ones of the partitioned gas streams in the scrubber to oxidize contaminants in the
partitioned gas streams,

removing the oxidized contaminants from the selected partitioned gas stream, and
recombining the selected partitioned gas streams substantially free of contaminants with the remaining partitioned gas streams
containing contaminants.

US Pat. No. 9,353,912

METHOD AND SYSTEM FOR REFUELLING

Linde Aktiengesellschaft,...

1. A hydrogen dispensing system comprising: a source of hydrogen fluidly connected to a valve block comprising one or more
valves for controlling the flow of hydrogen in electronic communication with a programmable logic controller for controlling
the flow of hydrogen between the valve block and a dispenser wherein the dispenser comprises a hose assembly for delivering
hydrogen to a vehicle and an expander fluidly connected to the dispenser to expand the dispenser to two or more dispensers
and a pump fluidly connected to the vehicle for water removal from the vehicle.

US Pat. No. 9,365,783

PROCESS AND APPARATUS FOR PRODUCING SYNTHESIS GAS

LINDE AKTIENGESELLSCHAFT,...

6. An apparatus for producing synthesis gas (5) comprising:
a burner-fired steam reformer (D) and a facility (T) for producing a low-nitrogen feed (4) for the steam reformer (D) from a starting material (1) containing hydrocarbons and nitrogen,

wherein said facility (T) is connected via a line (6) to a burner (B) of said steam reformer (D) in such a way that a hydrocarbon-containing residual gas (2), obtained by removal of nitrogen from the starting material in said facility (T), can be fed as fuel by the line (6) to the burner (B), and

wherein said facility for producing a low-nitrogen feed (T) comprises an adsorber (N) for separating off nitrogen from the
starting material (1) containing nitrogen and hydrocarbons, which is connected to said burner (B) for firing the steam reformer (D) via said line
(6) in such a way that hydrocarbon-containing residual gas (2) obtained from the adsorber (N) can be fed as fuel via said line (6) to said burner (B).

US Pat. No. 9,181,077

METHODS FOR LIQUEFIED NATURAL GAS FUELING

LINDE AKTIENGESELLSCHAFT,...

1. A method for fueling a vehicle comprising the steps:
a) Feeding a liquid cryogen into a condensing unit, thereby condensing natural gas present in the condensing unit wherein
the condensing unit is in fluid communication with an onboard storage tank of the vehicle;

b) Creating a pressure differential between the onboard storage tank and a bulk liquefied natural gas storage tank of the
fueling system;

c) Recovering natural gas vapor from an onboard storage tank of said vehicle and feeding said natural gas vapor to the condensing
unit; and

d) Feeding liquefied natural gas from the bulk liquefied natural gas storage tank of the fueling system to said onboard storage
tank after a predetermined pressure is reached in the onboard storage tank.

US Pat. No. 9,469,534

REFORMER TUBE AND APPARATUS AND ALSO PROCESS FOR PRODUCING A SYNTHESIS GAS

LINDE AKTIENGESELLSCHAFT,...

19. The reformer tube according to claim 1, wherein said reformer tube 10 comprises a first a bed of catalyst material (50) positioned upstream of said at least one flow directing device (30) and a second bed of catalyst material (50) positioned downstream of said at least one flow directing device (30).

US Pat. No. 9,186,600

DEVICE FOR BRINGING ABOUT A PHASE CONTACT BETWEEN A LIQUID PHASE AND A GASEOUS PHASE, IN PARTICULAR A HEAT AND MASS TRANSFER COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. A device for bringing about a phase contact between a liquid phase and a gaseous phase, said device comprising:
a shell (10), which extends along a longitudinal axis (L) and bounds a shell space (M),

at least one first tray (100), arranged in said shell space (M), for taking up a liquid phase, which extends crosswise to said longitudinal axis (L),
wherein said at least one first tray (100) has through openings (D) for passage of a gaseous phase, so that a gaseous phase can come into phase contact with a liquid
phase that is located on said at least one first tray (100), and

a plurality of sealing weirs (101) projecting from said at least one first tray (100) along said longitudinal axis (L), which extend in each case along a radial direction (R) of said at least one first tray
(100), so that said at least one first tray (100) is divided into a corresponding plurality of sectors (102),

wherein each of said sealing weirs (101) extend in said radial direction (R) starting from a middle area of said at least one first tray (100) to an outermost circumferential edge (103) of said at least one first tray (100), so that over the entire length of each sealing weir, a liquid phase located in one of said sectors (102) cannot pass directly into adjacent sectors.

US Pat. No. 9,216,375

METHOD FOR SELECTIVELY DESULFURIZING A CRUDE SYNTHESIS GAS

LINDE AKTIENGESELLSCHAFT,...

1. A method for operating a gas scrubber, said method comprising:
scrubbing a feed gas (1) containing hydrogen, carbon monoxide, carbon dioxide and carbonyl sulfide, hydrogen sulfide, or combinations thereof in
a scrubbing apparatus (A1) using a scrubbing agent (3, 4) preladen with carbon dioxide to separate sulfur components from said feed gas and to produce a desulfurized gas stream (5, 9),

wherein said scrubbing agent (3, 4) preladen with carbon dioxide is a sulfur-free scrubbing agent preladen with carbon dioxide which, on introduction thereof
into the scrubbing apparatus (A1), has a carbon dioxide partial pressure which is greater than or equal to the carbon dioxide partial pressure in said feed
gas (1) to be desulfurized,

wherein said sulfur-free scrubbing agent (3, 4) preladen with carbon dioxide is supplied from a gas scrubber operated in parallel with said scrubbing apparatus (A1), in which carbon dioxide is selectively removed by scrubbing with the assistance of a sulfur-free scrubbing agent (23) from a gas mixture (21) which has a carbon dioxide partial pressure which is higher than the carbon dioxide partial pressure of the feed gas (1) to be desulfurized, and

wherein sulfur-free scrubbing agent preladen with carbon dioxide is removed from said gas scrubber, expanded and sent to a
gas/liquid separator, and liquid removed from said gas/liquid separator is used as said sulfur-free scrubbing agent (3, 4) preladen with carbon dioxide in said scrubbing apparatus (A1).

US Pat. No. 9,314,049

TUNNEL

Linde Aktiengesellschaft,...

1. A tunnel for in-line anti-bacterial treatment of plucked animal carcasses with a fluid selected from at least one of a
cryogenic liquid and a cold gas at a temperature below 0° C., comprising:
an entrance and an exit for the carcasses, and
a continuous slot in a roof of the tunnel extending from the entrance to the exit, the continuous slot sized and shaped to
receive carcass suspension shackles to pass therethrough and be arranged in a path which reverses direction at least once,

wherein said tunnel is disposed at least partially within a chiller of an animal processing plant.

US Pat. No. 9,162,410

COMPRESSION OF A WATER-SATURATED MEDIUM

Linde Aktiengesellschaft,...

1. A method for compressing a gas-phase medium, wherein the medium may have a water content up to total saturation with water
and wherein the medium is compressed in a single or multiple stages in at least one liquid-filled chamber, characterized in
that an ionic liquid that is selected from the group consisting of a liquid that is not susceptible to attack by the water
contained in the medium to be compressed and a liquid with low vapor pressure that is not susceptible to attack by the water
contained in the medium to be compressed is used as the liquid and the compressed medium undergoes a water separation stage.

US Pat. No. 9,550,143

METHOD FOR TREATING A HYDROCARBON-RICH GAS MIXTURE CONTAINING MERCURY AND ACID GASES

Linde Aktiengesellschaft,...

1. A method for treating a mercury- and acid gases-containing hydrocarbon-rich gas mixture, wherein said mixture is subjected
to an adsorptive mercury removal, having a separation process connected upstream of it, and a subsequent acid gas scrub, characterized
in that between exiting the separation process and being supplied to the adsorptive mercury removal the gas mixture to be
treated is warmed at least to an extent sufficient to avoid the temperature thereof falling below the water dew point in the
adsorptive mercury removal and falling below the hydrocarbon dew point in the acid gas scrub.

US Pat. No. 9,464,246

METHOD AND SYSTEM FOR PURIFYING SYNTHESIS GAS, IN PARTICULAR FOR AMMONIA SYNTHESIS

LINDE AKTIENGESELLSCHAFT,...

1. A method for purifying synthesis gas, said method comprising
combusting a partial stream (26) of an H2-rich, CO-containing synthesis gas stream

introducing the remaining H2-rich, CO-containing synthesis gas stream (26a), into an adsorber (14) wherein at least one component contained in the remaining H2-rich, CO-containing synthesis gas stream (26a) is adsorbed at low temperatures and

desorbing said at least one adsorbed component from the adsorber (14) by purging with nitrogen (33) at a temperature higher than the temperature used for adsorption of the at least one component, and at a pressure of 20
to 40 bar,

wherein, prior to combustion, said partial stream (26) of the H2-rich, CO-containing synthesis gas stream is diluted with the nitrogen used for purging (35) said adsorber (14).

US Pat. No. 9,181,495

CONVECTION ZONE OF A CRACKING FURNACE

LINDE AKTIENGESELLSCHAFT,...

1. A process for preparing hydrocarbons by thermally cracking a hydrocarbon-containing feed in a cracking furnace having a
radiation zone and a convection zone, said process comprising:
thermally cracking said hydrocarbon-containing feed in said radiation zone wherein flue gas is generated,
introducing said flue gas from said radiation zone into said convection zone as a heat transfer medium,
preheating and/or vaporizing the hydrocarbon-containing feed in at least one heat exchanger arranged in the convection zone
wherein the hydrocarbon-containing feed undergoes heat exchange with said flue gas, wherein the at least one heat exchanger
for preheating and/or vaporizing the hydrocarbon-containing feed is positioned near a relatively cold end of the convection
zone,

heating and/or vaporizing boiler feed water in at least one heat exchanger arranged in the convection zone wherein the boiler
feed water undergoes heat exchange with said flue gas, wherein said convection zone contains at least a first heat exchanger
for heating and/or vaporizing boiler feed water and a second heat exchanger for heating and/or vaporizing boiler feed water,
and both of said first and second heat exchangers for heating and/or vaporizing boiler feed water are positioned near a relatively
hot end of the convection zone,

wherein the temperature of said flue gas on exiting the convection zone varies, independently of the state of matter of the
hydrocarbon-containing feed, in a range of 30° C. to less than 150° C. and

wherein the streams in the heat exchangers of the convection zone are regulated in the process, depending on the state of
matter of the hydrocarbon-containing feed,

in the case of a gaseous hydrocarbon-containing feed, virtually 100% of the heat transfer area of all heat exchangers in the
convection zone participates in heat exchange with said flue gas, and boiling feed water flows through both said first heat
exchanger for heating and/or vaporizing boiler feed water and said second heat exchanger for heating and/or vaporizing boiler
feed water,

in the case of a liquid hydrocarbon-containing feed, only a fraction of 100% of the heat transfer area of the heat exchangers
in the convection zone participates in heat exchange with said flue gas, and boiling feed water flows through only one of
said first heat exchanger for heating and/or vaporizing boiler feed water and said second heat exchanger for heating and/or
vaporizing boiler feed water.

US Pat. No. 9,598,754

METHOD FOR CONTINUOUS HOT-DIP COATING OF METAL STRIPS

Linde Aktiengesellschaft,...

1. A method for coating a product, comprising:
applying a molten coating to a surface of the product; and
removing an excess portion of the molten coating from said product, said removing comprising:
directing an air flow having a first composition to the product for removing a major part of said excess portion of the molten
coating from said product, and

directing an inert gas flow having a second composition different than the first composition to the product after the directing
the air flow for removing a second portion of said excess portion from said product.

US Pat. No. 9,533,256

METHODS FOR REMOVING CONTAMINANTS FROM EXHAUST GASES

Linde Aktiengesellschaft,...

1. A method for removing contaminants from a gas stream comprising the steps:
a) Feeding the gas stream containing the contaminants into a scrubber;
b) Contacting the gas stream with a scrubbing solution;
c) Contacting the gas stream with ozone, wherein nitrogen oxides are oxidized;
d) Contacting the gas stream containing the oxidized nitrogen oxides with a device selected from the group consisting of a
droplet separator and a condensing surface to provide sufficient surface area to dissolve, condense and absorb and, thereby
removing the oxidized nitrogen oxides;

e) Contacting the gas stream with a scrubbing solution, thereby removing particulates, sulfur oxides, acid gases and mercury
from the gas stream; and

f) Recovering the gas stream.

US Pat. No. 9,746,260

HEAT EXCHANGER WITH SECTIONS

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger for the indirect heat exchange between at least one first medium and one second medium, said heat exchanger
comprising:
a tube bundle (10) formed from a plurality of tubes, helically coiled about a core pipe (100), for the reception of the first medium, and

a shell (20), which encloses the tube bundle (10) and defines a shell space (200) surrounding the tube bundle (10), for the reception of the second medium whereby said first medium and said second medium can enter into indirect heat exchange,

said tubes being helically coiled about the core pipe (100) in such a manner that there is formed at least a first section (11) and a second section (12), separate from said first section (11), of the tube bundle (10), said first section encircling the core pipe (100), said second section (12) encircling said core pipe (100) and surrounding or penetrating said first section (11) in a radial direction and along a circumferential direction of the shell (20), wherein each of the first (11) and second (12) sections of the tube bundle (10) have a hollow cylindrical form, and wherein said core pipe (100) has a longitudinal axis which coincides with cylindrical axes of each of said first (11) and second (12) sections of the tube bundle (10),

wherein said first section (11) and said second section (12) of the tube bundle each have at least one associated inlet (E, E?) whereby the two sections (11, 12) are able to be charged separately with said first medium,

wherein said heat exchanger further comprises control means (30), with which a supply of the first medium via the at least one inlet (E) of the first section (11) is controllable separately from a supply of the first medium via the at least one inlet (E?) of the second section (12), said control means (30) comprising at least one valve (301) for said at least one inlet (E) of said first section (11) and at least one valve (302) for said at least one inlet (E?) of said second section (12), wherein said at least one valve (301) controls a supply of fluid flow of said first medium via said at least first inlet (E) to said first section (11) separately from a supply of fluid flow of said first medium via said at least second inlet (E?) to said second section (12), and said at least one valve (302) controls a supply of fluid flow of said first medium via said at least second inlet (E?) to said second section (12) separately from said supply of fluid flow of said first medium via said at least first inlet (E) to said first section (12), and

wherein said heat exchanger further comprises a liquid distributor (40) for distributing a first flow (S) of said second medium in the form of a liquid (F) onto said tube bundle (10) in said shell space (200) such that liquid (F) can enter into indirect heat exchange with said first medium guided within said tube bundle (10).

US Pat. No. 9,816,765

PIPING MODULE FOR AIR FRACTIONATION PLANT

Linde Aktiengesellschaft,...

1. A prefabricated piping module (10) constructed for use in an air fractionation plant (100) having a warm part containing at least one main compressor and a cold part containing at least one main heat exchanger,
said piping module being capable of linking at least two fluid ports (10a?, 10b?) of the at least one main heat exchanger (1a, 1b) to at least two fluid lines in a warm part of the air fractionation plant (100), said piping module (10) comprising:
a prefabricated piping module having a main compressor side and a main heat exchanger side,
at least two ports on the main compressor side of the piping module, which are couplable with the at least two fluid lines
in the warm part of the air fractionation plant (100),

at least two ports (10a, 10b) on the main heat exchanger side of the piping module, which are couplable with the at least two fluid ports (10a?, 10b?) of the at least one main heat exchanger (1a, 1b) in the cold part of the air fractionation plant (100), and

at least two fluid lines connecting said at least two ports on the main compressor side to said at least two ports (10a, 10b) on the main heat exchanger side,

wherein said piping module is in the form of a pipping skid,
wherein said piping module optionally comprises shut-off means for shutting off individual fluid lines and/or adjusting means
for adjusting a fluid stream, and

wherein said piping module does not comprise compressors, expansion machines, heating devices, coolers, or heat exchangers.

US Pat. No. 9,572,367

TUNNEL

Linde Aktiengesellschaft,...

1. A tunnel for in-line anti-bacterial treatment of plucked poultry carcasses (or other animal carcasses), comprising:
a cryogenic liquid at a temperature below 0° C. in the tunnel,
an entrance and an exit at the tunnel for the carcasses,
a monorail conveyor extending through the tunnel from the entrance to the exit along a path which reverses direction at least
once, the monorail conveyor having carcass suspension shackles able to pass through said tunnel, and

an array of nozzles disposed in the tunnel for spraying the cryogenic liquid into the tunnel.

US Pat. No. 9,458,762

METHOD AND DEVICE FOR GENERATING ELECTRICAL ENERGY

Linde Aktiengesellschaft,...

24. A device for generating electrical energy comprising:
a combined system comprising a power plant (18) and a cryogenic air separation unit (7), said cryogenic air separation unit (7) comprising a main air compressor (3, 4, 5; 30) for compressing an air feed stream (1), a main heat exchanger for cooling a compressed air feed stream, a distillation column system comprising a high-pressure
column and a low-pressure column, wherein pressures within said high-pressure column are higher than any pressures within
the low-pressure column, and means for introducing a cooled air feed stream into said distillation column system,

means for introducing a first oxygen-enriched product stream (17) from said distillation column system into said power plant (18),

means for introducing a cryogenic liquid (21, 21a), which is formed by a first process fluid (16, 19) of the distillation column system, into a liquid tank (22) during a first operating mode,

means for removing the cryogenic liquid (23) from said liquid tank (22) and introducing the cryogenic liquid into said distillation column system during a second operating mode,

means for heating (14) a second process fluid (24) of said distillation column system to a high temperature prior to any active depressurization thereof, wherein said second
process fluid (24) is a nitrogen-enriched product stream removed from said high pressure column,

a hot expansion turbine (26) for active depressurization of heated second process fluid during the second operating mode,

means for converting (28) mechanical energy generated in said hot expansion turbine (26) into electrical energy (29) during the second operating mode,

means for removing the nitrogen-enriched product stream from the high-pressure column as the second process fluid (24) of said distillation column system and means for supplying the nitrogen-enriched product stream to said means for heating
(14) and to said hot expansion turbine (26) during the second operating mode.

US Pat. No. 9,581,250

PRESSURISED CONTAINER VALVE

Linde Aktiengesellschaft,...

1. A valve for a pressurised fluid cylinder, the valve comprising:
a housing with a bore containing a valve assembly, the valve assembly comprising:
a shut off valve biased against a seat to seal the cylinder;
an actuation element movable linearly to open the valve against the biasing force; and
a linkage element coupling the actuation element to the shut off valve;
a first piston towards the top of the linkage element sealed with a first portion of the bore having a first diameter,
a second piston towards the bottom of the linkage element sealed in a first position with a second portion of the bore having
a second diameter less than the first diameter, the linkage element being movable to a second position in which the second
piston enters a third portion of the bore having a diameter greater than the second diameter, such that the second piston
is no longer sealed with the bore;

a gas refill inlet communicating with the second portion of the bore; the first piston having a face exposed to the gas refill
inlet which is larger than a face of the second piston exposed to the gas refill inlet, such that refill gas pressure biases
the linkage element away from the valve;

wherein the actuation element in a depressed position pushes against the linkage element to hold the linkage element down
and the valve open so that the cylinder can be refilled; and

wherein when the actuation element is in a non-depressed position, the linkage element is free to move with the refill gas
pressure so that it is spaced from the valve.

US Pat. No. 9,562,718

REBALANCING A MAIN HEAT EXCHANGER IN A PROCESS FOR LIQUEFYING A TUBE SIDE STREAM

LINDE AKTIENGESELLSCHAFT,...

1. A process for liquefying a first tube side stream in a main heat exchanger having a warm end and a cold end, the main heat
exchanger comprising a wall defining a shell side within which is arranged a coil-wound tube bundle, the process comprising:
a) introducing a first mass flow of said first tube side stream in gaseous form to a warm end of a first subset of individual
tubes of said tube bundle, said first subset of individual tubes being evenly distributed radially across said tube bundle;

b) separate from said first mass flow, introducing a second mass flow of said first tube side stream in gaseous form to a
warm end of a second subset of individual tubes of said tube bundle, said second subset of individual tubes being evenly distributed
radially across said tube bundle;

c) evaporating a refrigerant stream on the shell side to provide cooling to said first mass flow and said second mass flow
whereby said first tube side stream becomes a liquid;

d) measuring an exit temperature of said first mass flow removed as a liquid from a cold end of said first subset of individual
tubes;

e) measuring an exit temperature of said second mass flow removed as a liquid from a cold end of said second subset of individual
tubes; and

f) comparing the exit temperature of said first mass flow measured in step d) to the exit temperature of said second mass
flow measured in step e), and adjusting at least one of the first and second mass flows to equalize the exit temperature of
said first mass flow with the exit temperature of said second mass flow.

US Pat. No. 9,556,508

METHOD FOR THE PHOTOCATALYTICALLY ACTIVE COATING OF SURFACES

LINDE AKTIENGESELLSCHAFT,...

1. Method for the photocatalytically active coating of surfaces, in which:
i) a substrate article (5) which has a surface (3) is prepared,

ii) a titanium-containing metallic adhesion-promoting layer (7) is applied to the surface (3) of the substrate article (5),

iii) a photocatalytically active layer (9) consisting of one or more titanium metal oxides is applied to the metallic adhesion-promoting layer (7) by cold gas spraying,

wherein the metallic adhesion-promoting layer (7) and the surface (3) of the substrate article (5) consist of different material.

US Pat. No. 9,725,644

Y-GRADE NGL STIMULATION FLUIDS

LINDE AKTIENGESELLSCHAFT,...

11. A method of pumping a stimulation fluid into a hydrocarbon bearing reservoir, comprising:
blending an unfractionated hydrocarbon mixture, a proppant, and at least one of nitrogen and carbon dioxide in a receiver-blender
to form the stimulation fluid, wherein the unfractionated hydrocarbon mixture is a byproduct of a de-methanized hydrocarbon
stream, and wherein the unfractionated hydrocarbon mixture comprises ethane, propane, butane, isobutane, and pentane plus;
and

pumping the stimulation fluid into the hydrocarbon bearing reservoir.

US Pat. No. 9,759,382

METHOD FOR FILLING UP A STORAGE TANK WITH A GASEOUS PRESSURIZED MEDIUM, IN PARTICULAR HYDROGEN

Linde Aktiengesellschaft,...

1. A method for filling up a storage tank with a gaseous, pressurized medium in which a supply tank system for storing the
hydrogen is connected with the storage tank to be filled by way of a tank feed line , wherein, prior to filling up the storage
tank with aforesaid medium, a flow of the medium for cooling the tank feed line is guided through the tank feed line, and
removed from the tank feed line through a line that branches away from the tank feed line (upstream from the storage tank.

US Pat. No. 9,810,103

METHOD AND DEVICE FOR GENERATING ELECTRICAL ENERGY

LINDE AKTIENGESELLSCHAFT,...

1. A method for generating electrical energy in a system comprising a power plant and an air treatment plant, wherein the
power plant has a gas expansion unit, which is connected to a generator for generating the electrical energy, and the air
treatment plant has an air compression unit, a heat exchanger system and a liquid tank, said method comprising:
in a first operating mode
in the air treatment plant
compressing a feed air in the air compression unit to form a compressed feed air, and cooling the compressed feed air in the
heat exchanger system, to form a compressed and cooled feed air,

producing a storage fluid from the compressed and cooled feed air, and
storing the storage fluid as a cryogenic liquid in the liquid tank,
and in a second operating mode
removing said cryogenic liquid from the liquid tank and vaporizing or pseudo-vaporizing said cryogenic liquid at superatmospheric
pressure to generate a gaseous high-pressure storage fluid, and expanding said gaseous high-pressure storage fluid in the
gas expansion unit, and

wherein, in the second operating mode, said method further comprises:
introducing a gaseous natural gas into the heat exchanger system, where said gaseous natural gas is liquefied or pseudo-liquefied,
and

wherein the vaporizing or pseudo-vaporizing of said cryogenic liquid is carried out in the heat exchanger system.

US Pat. No. 9,593,020

METHODS FOR CARBON DIOXIDE PURIFICATION

Linde Aktiengesellschaft,...

1. A method for removing contaminants from a carbon dioxide gas stream at ambient pressure comprising feeding the carbon dioxide
gas stream through a non-thermal plasma reactor.

US Pat. No. 9,841,229

PROCESS FOR COOLING A HYDROCARBON-RICH FRACTION

Linde Aktiengesellschaft,...

1. A process for cooling a hydrocarbon-rich fraction against a refrigerant circuit in which a refrigerant flows, wherein the
method comprises:
a) cooling the hydrocarbon-rich fraction in three heat-exchange zones against the refrigerant of the refrigerant circuit,
b) compressing the refrigerant to form a compressed refrigerant,
c) splitting the compressed refrigerant into a first substream and a residual refrigerant stream,
d) cooling the residual refrigerant stream in the first heat-exchange zone against itself to a temperature which is at least
3° C. above the critical temperature of the refrigerant,

e) work-producingly expanding the first substream,
f) dividing the cooled residual refrigerant stream into a second substream and a third substream,
g) work-producingly expanding the second substream in a final expansion stage to form a work-producingly expanded second substream,
wherein pressure and temperature are selected in such a manner that no liquid occurs during the work-producing final expansion
stage,

h) cooling the third substream in the second and third heat-exchange zones to form a cooled third substream,
i) expanding the cooled third substream to obtain an expanded two-phase third substream having a subsequent expansion a liquid
fraction of at least 90 mol % is established,

j) feeding the expanded two-phase third substream into the third heat-exchange zone so that it acts to cool the downstream
third substream in the third heat exchange zone, wherein in the third heat-exchange zone the expanded, two-phase third substream
is at least partially vaporized in the third heat-exchange zone,

k) wherein the work-producingly expanded second substream combines with the at least partially vaporized third substream,
and the refrigerant stream thus formed is further warmed up in the second heat-exchange zone to form a warmed-up refrigerant
stream,

l) adding the work-producingly expanded first substream to the warmed-up refrigerant stream, and
m) warming up the refrigerant stream in the first heat-exchange zone before the up refrigerant stream is subjected again to
the compression of step b).

US Pat. No. 9,700,831

COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. A column for separating CO2 from a CO2-containing gaseous phase, said column comprising:
a jacket (10), which extends along a longitudinal axis (L),

wherein said jacket (10) bounds at least a first jacket space (M) and a second jacket space (M?) arranged above said first jacket space (M) along
said longitudinal axis (L),

a gas-permeable first chimney tray (20) having a base (21) and at least one chimney (22), said base (21) extending in a direction crosswise to said longitudinal axis (L), said least one chimney (22) extending in the direction of said longitudinal axis (L), and a chimney top (26) that overlaps an opening (O) of said at least one chimney (22), wherein said first jacket space (M) is separated from said second jacket space (M?) by said gas-permeable first chimney
tray (20) with said first jacket space (M) being positioned below said base (21) and said second jacket space (M?) being positioned above said base (21), whereby a gaseous phase (G) flowing upward through said first jacket space (M) along said longitudinal axis (L) can pass
through said at least one chimney (22) of said first chimney tray (20) into said second jacket space (M?),

wherein said chimney top is arranged in the direction of longitudinal axis (L) some distance away from a front side (24) of said at least one chimney (22) and borders said opening (O) of said at least one chimney (22) in such a way that said at least one chimney (22) and said chimney top (26) define a circumferential gap (S),

wherein said column (1) is designed to contact a gaseous phase (G) in the first jacket space (M), in counter-current flow, with a first liquid washing
agent (W) in the form of water in order to wash water-soluble components out of gaseous phase (G), and

said first chimney tray (20) having a separator (200) for separating a second washing agent (W?), flowing counter current to gaseous phase (G) in said second jacket space (M?),
said separator being permeable to gaseous phase (G) flowing upward through the chimney from the first jacket space into the
second jacket space and said separator being designed so that second washing agent (W?) is separated by the separator (200) and directed into said second jacket space (M?) and is suppressed from flowing into said first jacket space (M), and said
separator (200) being positioned in said circumferential gap (S) and arranged in such a way that gaseous phase (G) can pass only through
said separator (200) from said first jacket space (M) into said second jacket space (M?), and second washing agent (W?) that is separated by
said separator (200) flows into said second jacket space (M?),

wherein said separator (200) goes around said chimney (26) crosswise to the longitudinal axis (L) of said column, and said separator (200) has an inner side (200a) that faces said at least one chimney (22), which inner side rests against an outer side (22b) of said at least one chimney (22), in such a way that in said separator (200), second washing agent (W?) flows downward along said outer side (22b) of said at least one chimney (22) into said second jacket space (M?),

wherein said chimney top (26) is connected to said at least one chimney (22) via at least one longitudinally extended fastening element (28), and said at least one fastening element (28) is surrounded by said separator (200), and

wherein said first chimney tray and said separator are adapted to direct the second washing agent separated from the separator
into said second jacket space, and are adapted to suppress overflow of the second washing agent into said first jacket space.

US Pat. No. 9,683,705

FLOW APPARATUS AND MONITORING SYSTEM RELATING THERETO

LINDE AKTIENGESELLSCHAFT,...

1. A flow apparatus (10) for a vessel storing fluid under pressure comprising:
a flow control valve (12) having a housing (14), an aperture (16), an aperture obturator (18), and an actuator (20) for moving said aperture obturator (18) between a first closed position and multiple open positions (A-L),

a valve position monitor (21) for monitoring the position of the valve (12), said monitor (21) comprising a plurality of members (26) movable with said valve (12) and a plurality of discrete sensors (28a to 28d) associated with a plurality of open positions of said valve (12) for monitoring the presence or absence of said one or more members (26) movable with said valve (12), and

said actuator comprises a handle (22) connected to a spindle (24),

wherein said plurality of said members (26) are in the form of discrete members (26a to 26e) housed within said handle (22) connected to said spindle (24), and said members move with said handle as said handle is moved, and wherein said plurality of discrete sensors (28a to 28d) are fixedly mounted relative to said housing (12) such that movement of the actuator (20) causes said members (26) to move relative to said sensors (28) and allow for detection of said movement through detection of said members (26) by said sensors (28a to 28d).

US Pat. No. 9,733,014

METHOD AND DEVICE FOR OBTAINING COMPRESSED OXYGEN AND COMPRESSED NITROGEN BY THE LOW-TEMPERATURE SEPARATION OF AIR

LINDE AKTIENGESELLSCHAFT,...

1. A method of obtaining compressed oxygen and compressed nitrogen by separation of air in a distillation-column system for
nitrogen-oxygen separation, said distillation-column system having at least one high-pressure column (8) with bottom evaporator (9, 209) and a low-pressure column (460), wherein the low-pressure column (460) is in heat-exchanging communication with the high-pressure column (8) via a main condenser (461), configured as a condenser-evaporator, said high-pressure column (8) having a top and a bottom, and said low-pressure column (460) having a top and a bottom, said method comprising:
compressing feed air in an air compressor (2),

cooling the compressed feed air (6, 734, 802, 840) in a main heat exchanger (20), and feeding the cooled and compressed feed air at least partially into said high-pressure column (8),

removing an oxygen-enriched liquid (462, 465) from the high-pressure column (8), and supplying the oxygen-enriched liquid to said low-pressure column (460) at a first point (464, 467, 906) intermediate to said top and bottom of low-pressure column (460),

removing a nitrogen-enriched liquid (468, 470) from said high-pressure column (8) and/or said main condenser (461), and delivering the nitrogen-enriched liquid to the top of said low-pressure column (460),

removing an oxygen stream (11, 12) in the liquid state from said distillation-column system for nitrogen-oxygen separation, pressurizing the oxygen stream
in the liquid state to an increased pressure (13), feeding the oxygen stream at the increased pressure into said main heat exchanger (20) wherein the oxygen stream is evaporated or pseudo-evaporated and warmed to form a gaseous compressed oxygen product (14), and removing the gaseous compressed oxygen product (14) from said main heat exchanger (20),

bringing a pressurized process stream (34, 734) into indirect heat exchange with the oxygen stream in the main heat exchanger (20) wherein the pressurized process stream is cooled and the oxygen stream is evaporated or pseudo-evaporated and warmed , expanding
the cooled pressurized process stream (36, 38; 736, 738) to form an expanded process stream, and then feeding the expanded process stream (37, 737), at least partially in the liquid state, into said distillation-column system for nitrogen-oxygen separation,

withdrawing a gaseous circulation nitrogen stream (18, 19) from said high-pressure column and compressing at least a portion (21) of the gaseous circulation nitrogen stream in a circulation compressor (22), wherein said circulation compressor (22, 322) is a multistage compressor,

withdrawing a first partial stream (45, 46; 244, 242, 230; 845, 846) of the gaseous circulation nitrogen stream from the circulation compressor (22, 322), cooling the first partial stream in said main heat exchanger (20), at least partially liquefying the first partial stream in said bottom evaporator (9, 209) of said high-pressure column (8) by indirect heat exchange with bottom liquid of said high-pressure column (8), and recycling the first partial stream to said distillation-column system for nitrogen-oxygen separation,

branching off a second partial stream of the gaseous circulation nitrogen stream upstream and/or downstream of said circulation
compressor and/or of an intermediate stage of said circulation compressor at a product pressure (P, P1, P2, P3, P4) as compressed nitrogen product (27, 29, 53, 564, 565),

wherein said circulation compressor (22, 322) operates with an inlet temperature that is above 250 K and is driven by means of external energy,

wherein a third partial stream of the gaseous circulation nitrogen stream is withdrawn from said circulation compressor (22, 322) as a turbine stream (40; 242), expanded with performance of work (41), and fed at least partially into said distillation-column system for nitrogen-oxygen separation, and

wherein in a first operating mode a fourth partial stream (45) of the gaseous circulation nitrogen stream is withdrawn from an intermediate stage of said circulation compressor at a pressure
(P1-GAN, P2-GAN) which is lower than the pressure at which said third partial stream is withdrawn from said circulation compressor (22, 322), cooled in a passage of the main heat exchanger, and mixed with the expanded turbine stream (42), resulting from the expansion of the third partial stream, upstream of said bottom evaporator (9) and the resultant combined stream (30) is recycled to said the distillation-column system for nitrogen-oxygen separation.

US Pat. No. 9,608,498

METHOD AND DEVICE FOR GENERATING ELECTRICAL ENERGY

Linde Aktiengesellschaft,...

1. A method for generating electrical energy in a system comprising a power plant, a cold air storage system and an air compression
system, wherein
the air compression system includes a primary air compressor for generating a primary compressed air flow at a first pressure
level,

the power plant includes a combustion unit for generating a combustion gas for use in generating electrical energy, and
the cold air storage system includes a means for generating cold air from the primary compressed air flow, a means for storing
the cold air produced by the means for generating cold air and a means for generating a third compressed air flow at a second
pressure level using the cold air from the means for storing the cold air, wherein the second pressure level is higher than
the first pressure level,
the method comprising,
operating in a first operating mode, comprising providing the primary compressed air flow as a first compressed air flow from
the air compression system to the cold air storage system and charging the means for storing the cold air,

operating in a second operating mode, comprising discharging the cold air from the means for storing the cold air to the means
for generating the third compressed air flow; generating the third compressed air flow in the means for generating the third
compressed air flow; and providing the third compressed air flow to the combustion unit, and

operating in a third operating mode, comprising providing all of the primary compressed air flow as a second compressed air
flow to the combustion unit,
the method further comprising
operating the combustion unit at the second pressure level;
when operating in the third operating mode, boosting all of the second compressed air flow to the second compressed air pressure
level using a first booster included in the air compression system prior to the second compression air flow being provided
to the combustion unit; and

when operating in the second operating mode, providing a portion of the primary compressed air flow as the first compressed
air flow to the cold air storage system for discharging to the means for generating the third compressed air flow and generating
the third compressed air flow for use in the combustion unit; wherein the means for generating the third compressed air flow
in the cold air storage system includes a cold compressor.

US Pat. No. 9,726,434

HEAT EXCHANGER WITH ADDITIONAL LIQUID CONTROL IN SHELL SPACE

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger for indirect heat exchange between at least one first medium and one second medium, comprising:
a tube bundle (10), formed from a plurality of tubes helically coiled around a core tube (100), for receiving said first medium,

a shell (20) enclosing said tube bundle (10), said shell defining a shell space (200) that surrounds said tube bundle (10), for receiving said second medium, and

a liquid distributor (40) for distributing, in the shell space (200) a stream (S), conveyed into said shell space (200), of said second medium in the form of a liquid (F), wherein said liquid distributor (40) comprises a main distributor (44), above said tube bundle (10), for receiving the stream (S) of liquid (F) to be distributed, wherein said main distributor (44) comprises a plurality of distributor arms (300) and each of said distributor arms comprises passage openings through which liquid (F) may be fed onto said tube bundle (10)

a control means (33) to control distribution in said shell space (200) of an additional further stream (S?), conveyed in said shell space (200), of liquid (F), and

at least one line (330) with at least one outlet, via which the further stream (S?) of liquid (F) may be fed controllably onto said tube bundle
(10), separately from the stream (S) of liquid (F) distributed by said liquid distributor (40), wherein said control means (33) comprises at least one valve (333) for said at least one line (330) for controlling distribution of the further stream (S?) of liquid (F).

US Pat. No. 9,689,614

METHOD FOR CARRYING OUT COMBUSTION IN AN INDUSTRIAL FURNACE

Linde Aktiengesellschaft,...

1. A method for combustion in an industrial furnace, the interior of which is caused to be heated by a matrix of downwards
directed roof burners arranged in at least two rows in the roof of the industrial furnace, wherein the roof burners are driven
with a fuel and a first oxidizer to heat a material in the interior of the furnace, comprising:
providing the matrix of downwards directed roof burners in the roof;
arranging at least one oxidizer lance in a sidewall of the furnace;
supplying a second oxidizer with an oxygen content of at least 85 percent by weight in the form of a jet traveling at at least
sonic velocity to the interior of the furnace through the at least one oxidizer lance;

running the jet of the second oxidizer in a horizontal plane above the material between and essentially parallel with two
consecutive rows of the roof burners; and

balancing an amount of the second oxidizer supplied per time unit so that the oxygen content supplied via the second oxidizer
constitutes at least 50 percent by weight of total supplied oxygen per time unit in the furnace.

US Pat. No. 9,739,484

METHOD FOR COMBUSTION OF A LOW-GRADE FUEL

Linde Aktiengesellschaft,...

1. A method for combustion of a fuel using at least one industrial burner (115) fed with a low grade, gaseous fuel having at least 50% by weight top gas from a blast furnace (121) and a Lower Heating Value (LHV) of not greater than 8 MJ/Nm3 and an oxidant, comprising:
originating the low grade, gaseous fuel from operating the blast furnace arranged in a same industrial plant as the at least
one industrial burner;

providing combustion products from the combustion of the fuel with the oxidant through a first heat exchanging step (150;201) for transferring thermal energy from the combustion products to the fuel thereby preheating said fuel; and

providing thereafter cooled combustion products through a second heat exchanging step (151;203) for transferring thermal energy from the cooled combustion products to the oxidant thereby preheating said oxidant.

US Pat. No. 9,717,219

WATER INLET ARRANGEMENT

Linde Aktiengesellschaft,...

1. A water inlet arrangement for use in a fish tank in aquaculture, comprising:
a pipe to feed water into the fish tank, the pipe having a first plurality of openings therein, and
a second element surrounding the pipe and spaced therefrom for providing a space between the pipe and the second element in
which a volume of water is received from the first plurality of openings, the second element having a second plurality of
openings therein directed into the fish tank and being rotatable in use with respect to the pipe to position the second plurality
of openings for use at an orientation with respect to the first plurality of openings to effect water flow from said second
element directly into the fish tank.

US Pat. No. 9,718,751

PROCESS AND PLANT FOR PREPARATION OF ONE OR MORE REACTION PRODUCTS

Linde Aktiengesellschaft,...

1. A process for preparing one or more reaction products, in which a first methane-rich feed stream is subjected to a partial
oxidation process and/or an autothermal reforming process and a second methane-rich feed stream is subjected to a steam reforming
process, and in which a first synthesis gas-containing output stream is formed by means of the partial oxidation process and/or
the autothermal reforming process and a second synthesis gas-containing output stream is formed by means of the steam reforming
process, where synthesis gas from the first output stream and synthesis gas from the second output stream are used to form
a collective synthesis gas stream and fluid from the collective synthesis gas stream is subjected to a molecular weight-increasing
reaction in a synthesis feed stream to obtain a synthesis output stream comprising carbon dioxide and the reaction products
from which at least one carbon dioxide-rich first recycle stream and a synthesis gas-containing and carbon dioxide-depleted
second recycle stream are formed, whereby fluid from the first recycle stream is subjected to the steam reforming process
and fluid from the second recycle stream is used in the formation of the synthesis feed stream, characterized in that the
collective synthesis gas stream has a stoichiometric number of 1.5 to 2.05 and/or the synthesis feed stream has a stoichiometric
number of 2 to 5 and that the carbon dioxide-rich first recycle stream is obtained from synthesis output stream by condensation
and distillation.

US Pat. No. 9,694,152

DEVICE FOR SUPPLYING GAS TO A PATIENT

Linde Aktiengesellschaft,...

1. A device for supplying a spontaneously breathing patient with a gas, the device comprising:
a) a gas storage unit (B) that serves to prepare and store gas to be inhaled by the patient (P),
b) a metering device (A) that serves to meter gas that is to be inhaled by a patient (P) into the gas storage unit (B),
c) a demand valve (D), which regulates the amount of flow of the gas from said gas storage unit (B) inhaled by a patient (P),
d) a reservoir (F) that serves the purpose of taking up exhaled gas from a patient (P),
e) a carbon dioxide separation unit (G), which serves to separate carbon dioxide from the exhaled gas,
f) a pump (H) that serves to recycle exhaled, carbon-dioxide-purified gas to said gas storage unit (B), and
g) an analysis/control unit (J), which analyzes the exhaled, carbon dioxide purified gas recycled to said gas storage unit
(B) and controls said metering device (A) for monitoring gas to be inhaled into said gas storage unit (B) based on the composition
of analyzed carbon dioxide purified gas.

US Pat. No. 9,686,847

NOZZLE FOR A PLASMA GENERATION DEVICE

Linde Aktiengesellschaft,...

1. A nozzle for plasma generator, suitable for treating the human body, the nozzle comprising a body having a gas inlet at
one end and plasma outlet at the opposite end, and defining a flow direction from the inlet to the outlet, and defining a
plasma generating chamber, an inner electrode positioned around part of an inner wall of the body, the inner electrode not
protruding into the plasma generating chamber and an outer earthed electrode provided around part of an outer wall of the
body, the inner and outer electrodes overlapping one another in the flow direction.

US Pat. No. 9,982,934

CONFIGURABLE SPIRAL FREEZER

Linde Aktiengesellschaft,...

1. A reconfigurable freezer, comprising:a housing having an internal space therein, and first and second openings each in communication with said internal space; and
an infeed assembly and an outfeed assembly, the infeed assembly constructed to be removably mounted to the housing at one of the first and second openings for being in communication with said internal space, and the outfeed assembly constructed to be removably mounted to another of the first and second openings for being in communication with said internal space, wherein the infeed and outfeed assemblies are interchangeable at the first and second openings;
wherein a surface area at the internal space octagonally-shaped.

US Pat. No. 10,113,806

HEAT EXCHANGER, IN PARTICULAR BLOCK-IN-SHELL HEAT EXCHANGER COMPRISING A SEPARATING UNIT FOR SEPARATING A GASEOUS PHASE FROM A LIQUID PHASE AND FOR DISTRIBUTING THE LIQUID PHASE

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger for indirectly exchanging heat between a first medium and a second medium comprising:a tank, which has an inner space for receiving the two-phase first medium
a plate heat exchanger arranged in the inner space, for indirectly exchanging heat between the first medium and the second medium, the inner space being designed to receive the first medium with a filling height such that a liquid phase of the first medium forms a bath surrounding the plate heat exchanger, and
an inlet for introducing the first medium into the inner space, characterized in that
a separating unit forming a receiving space is provided in the inner space for separating the gaseous phase from the liquid phase of the first medium, the separating unit having at least one upwardly directed receiving opening for introducing into the receiving space first medium falling down in the inner space, the upwardly directed receiving opening being arranged above the filling height or at the filling height, so that the gaseous phase of the first medium that is received in the receiving space can escape via the receiving opening into the inner space, and a distributor that is in flow connection with the inlet and is arranged vertically above the receiving opening and also above the filling height being provided in the inner space, the distributor being designed to distribute the first medium over the receiving opening.

US Pat. No. 9,925,489

METHOD AND DEVICE FOR GENERATING FUEL FOR A GAS TURBINE

Linde Aktiengesellschaft,...

1. A method for fractionating a first feed gas containing hydrogen and carbon dioxide, from which first feed gas carbon dioxide is selectively removed by scrubbing in a first gas scrubber with a sulphur-free scrubbing agent, wherein a scrubbing agent stream laden with carbon dioxide and co-absorbed hydrogen is thereby formed from the scrubbing in the first gas scrubber which is subsequently expanded in an expansion vessel in order to convert co-absorbed hydrogen into the gas phase, comprising a hydrogen-containing gas phase is drawn off from the expansion vessel and admixed with a sulphur-free gas mixture containing hydrogen and carbon dioxide which arises during the fractionation of a second feed gas in a second gas scrubber operated in parallel to the first gas scrubber as a product at a pressure which is lower than the pressure of the feed gas.

US Pat. No. 9,849,537

METHODS FOR WELD PURGING

Linde Aktiengesellschaft,...

1. A method for purging air from inside a structure that is capable of entraining air to be welded and prior to commencing
welding operations comprising feeding a liquid cryogen selected from the group consisting of argon, helium, nitrogen, and
mixtures thereof to the inside of said structure wherein said liquid cryogen will expand to a gaseous state and displace said
air from the inside of said structure out of said structure wherein the concentration of oxygen in the inside of said structure
where the oxygen is measured is about 10 parts per million after said air is displaced out of said structure.

US Pat. No. 10,065,183

PROCESS FOR PREPARING A CATALYST, CATALYST AND PROCESS FOR THE OXIDATIVE DEHYDROGENATION OF HYDROCARBONS

LINDE AKTIENGESELLSCHAFT,...

1. A process for oxidative dehydrogenation, which comprises using a catalyst in the form of a metal oxide catalyst which comprises at least the elements Mo, Te, Nb, and V, and contains M1 phase, said process comprising:preparing an aftertreated catalyst by calcining a catalyst precursor mixture to obtain a catalyst, and subjecting said catalyst to an aftertreatment to increase the fraction of the M1 phase of the catalyst, wherein in said aftertreatment said catalyst is
contacted with a first gas consisting of steam at a pressure below 80 bar, or
contacted with a second gas, wherein said second gas is pure oxygen, air, oxygen-enriched air, oxygen-depleted air, or a mixture consisting of at least one gas selected from helium, argon and nitrogen, and 20% oxygen, or
contacted with a gas mixture consisting of the first gas and the second gas, and
feeding a feed stream containing an alkane into a reactor appliance containing said aftertreated catalyst, wherein, by oxidative dehydrogenation of the alkane with oxygen in the presence of said aftertreated catalyst, an alkene-containing product stream is generated.
US Pat. No. 9,873,645

METHOD FOR PRODUCING HYDROCARBON PRODUCTS

1. Method for producing hydrocarbon products, which comprises:
a) preparing a hydrocarbon stream (C4), which predominantly comprises branched and unbranched hydrocarbons each having four
carbon atoms,

characterised by
b) recovering a first and a second partial stream (i-C4, n-C4) from the hydrocarbon stream (C4), the first partial stream
(i-C4) predominantly comprising branched hydrocarbons with four carbon atoms and the second partial stream (n-C4) predominantly
comprising unbranched hydrocarbons with four carbon atoms, and

c) steam cracking at least a part of the first partial stream (i-C4) or a stream derived therefrom at a first cracking severity
and at least a part of the second partial stream (n-C4)) or a stream derived therefrom at a second cracking severity, the
first cracking severity resulting in a conversion of iso-butane in the first partial stream of more than 91% and up to 99%
and the second cracking severity resulting in a conversion of n-butane in the second partial stream of less than 92% and more
than 50%.

US Pat. No. 10,113,802

SPIRAL WOUND HEAT EXCHANGER SYSTEM WITH CENTRAL PIPE FEEDER

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger system comprising:a jacket that extends along a longitudinal axis (L) and surrounds a jacket space (M) of the heat exchanger system (1),
a pipe bundle (R) arranged within the jacket space (M) comprising a plurality of pipes (70) that are wound helically around a central pipe (10), wherein said central pipe (10) extends along said longitudinal axis (L),
at least one pre-distributor container (50) arranged within said jacket space (M) for accommodating and degassing a liquid-gas mixture (F?), said at least one pre-distributor container (50) is designed to degas liquid (F) from a liquid-gas mixture (F?) and to distribute liquid (F) into a main distributor (60) for distributing liquid (F) onto said pipe bundle (R),
an inlet (30) in the jacket (20) at the top (2) of the heat exchanger system (1) wherein said inlet is aligned with said longitudinal axis (L) and is in the form of an inlet nozzle (30), and wherein said inlet (30) is in fluid connection with said central pipe (10),
said central pipe (10) has at least one lateral opening (100) that opens into the at least one pre-distributor container (50) whereby the liquid-gas mixture (F?) is capable of flowing via said inlet (30), said central pipe (10), and said at least one lateral opening (100) into said at least one pre-distributor container (50).

US Pat. No. 9,896,735

METHOD FOR HEATING A BLAST FURNACE STOVE

Linde Aktiengesellschaft,...

1. A method for heating a blast furnace stove including a combustion chamber having a combustion zone therein, comprising:
combusting a fuel with a lower heating value (LHV) of not more than 9 MJ/Nm3 in the combustion zone of the blast furnace stove,

causing combustion gases to flow through and be exhausted from refractory material in the stove for heating said refractory
material,

supplying and adding an oxidant comprising an oxygen content of at least 85% into the combustion chamber for recirculating
the combustion gases including said oxidant into the combustion zone, wherein the recirculating the combustion gases is from
a location inside the combustion chamber, but outside an area of the combustion chamber occupied by the combustion zone,

further supplying the oxidant to the combustion zone at high velocity through at least one lance, thereby entraining the combustion
gases into the combustion zone for diluting of the mixture,

diluting a mixture of the fuel and the oxidant with the recirculated combustion gases, and
flamelessly combusting said mixture in the combustion zone.

US Pat. No. 9,982,951

MAIN HEAT EXCHANGER AND A PROCESS FOR COOLING A TUBE SIDE STREAM

LINDE AKTIENGESELLSCHAFT,...

1. A main heat exchanger for liquefying a tube side stream, the main heat exchanger having a warm end and a cold end in use, the main heat exchanger comprising:a wall defining a shell side within which is arranged a coil-wound tube bundle arranged around a central mandrel;
a first nozzle for supplying a first mass flow of a tube side stream into the tubes of a first zone of individual tubes in said tube bundle at the warm end of said first zone of individual tubes;
a second nozzle for supplying a second mass flow of said tube side stream into the tubes of a second zone of individual tubes in said tube bundle at the warm end of said second zone of individual tubes, the second zone of individual tubes being offset from the first zone of individual tubes along a radius extending from said central mandrel to said wall of said main heat exchanger;
a distributor for supplying a refrigerant stream on said shell side for cooling the first and second mass flows to form an evaporated refrigerant stream;
a line for removing the evaporated refrigerant stream from the warm end of said main heat exchanger;
a first temperature sensor which generates a first signal indicative of the temperature of the first mass flow;
a second temperature sensor which generates a second signal indicative of the temperature of the second mass flow; and
a controller for equalizing the temperature of the first mass flow of the tube side stream at a first axial location with the temperature of the second mass flow of the tube side stream at said first axial location by comparing the first signal indicative of the temperature of the first mass flow with the second signal indicative of the temperature of the second mass flow and adjusting the first mass flow of the tube side stream supplied by said first nozzle relative to the second mass flow of the tube side stream supplied by said second nozzle to equalize the first signal with the second signal.

US Pat. No. 10,041,671

MULTI-FLAME BURNER AND METHOD FOR HEATING A WORKPIECE

Linde Aktiengesellschaft,...

1. A multi-flame burner with a plurality of burner heads and accompanying connection pipes, which are set up to generate at least one burner flame directed along a respective flame axis when supplied with a fuel, characterized in that the burner heads are provided in at least two groups (A, B) of burner heads, wherein the burner heads of at least one other group (B), and at least half of a connection pipe is offset, and the flame axes of the burner heads of at least the first group (A) are inclined divergent relative to the flame axes of the burner heads of at least the one other group (B), wherein the burner heads within each group (A, B) are each arranged in the same direction or in a direction parallel to each other, and the burner heads are alternatively interleaved relative to each other and the burner flames of group (A) point away from the burner flames of group (B).

US Pat. No. 9,958,200

METHOD FOR SEPARATING OFF ACID GASES FROM NATURAL GAS

LINDE AKTIENGESELLSCHAFT,...

1. A method for separating off acid gases from a hydrocarbon-rich fraction, said method comprising:cooling and partially condensing (E1-E4) the hydrocarbon-rich fraction to a temperature close to the CO2 triple point (?56.6° C.) in a multi-stage heat exchanger which uses a closed refrigeration circuit, wherein a refrigerant having a CO2 fraction of greater than 99.5% by volume is circulated in said refrigeration circuit to obtain a partially condensed hydrocarbon-rich fraction,
wherein, after each stage of the multi-stage heat exchanger, a gaseous refrigerant fraction is fed back to a compressor unit of said refrigeration cycle, and, after each stage of the multi-stage heat exchanger except for the last stage, a liquid refrigerant fraction is fed to the next stage of the multi-stage heat exchanger;
separating the partially condensed hydrocarbon-rich fraction into a CO2-reduced gas fraction and a CO2-enriched liquid fraction;
separating the CO2-enriched liquid fraction by rectification in a rectification column having a reboiler into a CO2-rich liquid fraction and a CO2-depleted gas fraction,
wherein said rectification column is operated at a pressure between 40 and 65 bar, and said reboiler of the rectification column is heated by a condensing refrigerant substream of the refrigeration circuit; wherein said multi-stage heat exchanger has four stages, said condensing refrigerant substream of the refrigeration circuit which is used to heat said reboiler of the rectification column is removed from the reboiler and combined with the liquid refrigerant fraction removed from the first stage of the multi-stage heat exchanger and then fed to the next stage of the multi-stage heat exchanger, said CO2-reduced gas fraction is warmed in a heat exchanger against a substream of said hydrocarbon-rich fraction, and said substream of said hydrocarbon-rich fraction is thereafter combined with the hydrocarbon-rich fraction at a point between the third and fourth stages of said multi-stage heat exchanger, and the CO2 depleted gas fraction from said rectification column is combined with the hydrocarbon-rich fraction at a point between the third and fourth stages of said multi-stage heat exchanger.

US Pat. No. 9,863,013

APPARATUS AND METHOD FOR HEATING A BLAST FURNACE STOVE

Linde Aktiengesellschaft,...

1. A method for heating a blast furnace stove, comprising:
combusting fuel in a combustion chamber in the stove,
providing combustion gases from the combustion chamber to heat refractory material in the stove,
recirculating exhausted combustion gases into the combustion chamber,
enriching the combustion chamber with oxygen, the enriching comprising delivering a balance of total oxygen required in an
amount sufficient for maintaining combustion in the combustion chamber with at least one oxy-fuel burner in communication
with the combustion chamber without damaging the refractory material in the stove.

US Pat. No. 9,630,892

METHOD FOR CONVERTING HYDROCARBON FEEDSTOCKS BY MEANS OF THERMAL STEAM CRACKING

1. A process for converting hydrocarbon feeds by thermal steamcracking to an olefin-containing product stream comprising at
least ethylene and propylene, with at least partial conversion of a first hydrocarbon feed in at least one first cracking
furnace (1) and of a second hydrocarbon feed in at least one second cracking furnace (2), characterized in that the second hydrocarbon feed comprises predominantly hydrocarbons having a carbon number of 5 or/and
4 and consists for the most part of one or more recycled fractions (P, T) which are obtained from the product stream, the
second hydrocarbon being converted in the second cracking furnace (2) with cracking conditions that lead to a ratio of propylene to ethylene of 0.85 to 1.6 kg/kg, the first hydrocarbon feed
being supplied with at least one fraction (U) which has been separated from the product stream and is recycled, comprising
predominantly hydrocarbons having a carbon number of at least 6, the first hydrocarbon feed being converted in the first cracking
furnace (1) with cracking conditions that lead to a ratio of propylene to ethylene of 0.25 to 0.85 at the cracking furnace outlet, and
the value for the ratio of propylene to ethylene for the second hydrocarbon feed being above the value for the ratio of propylene
to ethylene for the first hydrocarbon feed.

US Pat. No. 10,065,151

METHODS FOR REMOVING CONTAMINANTS FROM GAS STREAMS

Linde Aktiengesellschaft,...

1. A method for the partial removal of contaminants from a process gas stream comprising the steps of: separating a process gas stream into at least three process gas streams by means of a separating mechanism, wherein the process gas stream is heated before separating wherein a ratio of total flow rates of the at least three process gas streams to a total flow rate of the process gas stream is variable and is proportional to an amount of contaminants that are to be removed from the at least three process gas streams, feeding ozone into contact with at least one of the at least three process gas streams to oxidize the contaminants in the gas stream, and feeding at least one of the at least three process gas streams contacted by ozone to a scrubber for removal of the oxidized contaminants from the at least three process gas streams wherein an additional reaction chamber is provided for at least one of the at least three process gas streams that are treated with ozone.

US Pat. No. 9,982,842

METHOD FOR PERFORMING A PRESSURE TEST ON A TANK AND TANK FILLING APPARATUS

Linde Aktiengesellschaft,...

1. A method for determining leakage between a tank and a tank feed line wherein the tank is connected via a tank valve to the tank feed line, which has a first valve for shutting off the tank feed line, comprising prior to the tank being filled via the tank feed line, a flow of a pressurized hydrogen is conveyed with the first valve closed to the tank via a bypass line bridging the first valve, wherein the flow of medium is throttled in the bypass line by means of a throttle provided in the bypass line, so that a tank feed pressure acting on the tank valve rises in a controlled manner downstream of the throttle and wherein the tank valve is opened when the tank feed pressure exceeds a pressure in the tank, the tank feed pressure is measured, and the tank feed pressure established in the tank feed line after opening of the tank valve is adopted as the tank pressure and wherein if the adopted tank pressure remains constant over a defined time period, then no leakage is occurring and, the tank is filled with the pressurized hydrogen.

US Pat. No. 10,577,533

UNCONVENTIONAL ENHANCED OIL RECOVERY

Linde Aktiengesellschaft,...

1. A method of enhanced oil recovery from an unconventional resource reservoir located at a wellsite, comprising:injecting an enhanced recovery fluid comprising an unfractionated hydrocarbon mixture into the unconventional resource reservoir via an injection well at a pressure below the unconventional resource reservoir fracture pressure, wherein the unconventional resource reservoir is a reservoir that has been previously hydraulically fractured and comprises a hydrocarbon hearing reservoir, a seal to contain hydrocarbons within the hydrocarbon bearing reservoir, and a source rock from which hydrocarbons are generated all combined in the same formation layer,
wherein the unfractionated hydrocarbon mixture is a by-product that is condensed at a temperature at or below 0 degrees Fahrenheit of a de-methanized hydrocarbon stream and comprises a mixture of ethane, propane, normal butane, isobutane, pentane, and less than 1 percent methane by liquid volume, wherein the ethane, propane, normal butane, and isobutane comprise at least 75 percent by liquid volume of the unfractionated hydrocarbon mixture,
wherein the unfractionated hydrocarbon mixture is sourced and transported from a separate processing facility that is located at a location remote from the welisite of the unconventional resource reservoir, wherein the separate processing facility comprises at least one of a splitter facility, a gas plant, and a refinery, and wherein the unfractionated hydrocarbon mixture is transported via truck or pipeline from the separate processing facility to the unconventional resource reservoir;
alternating injections of the enhanced recovery fluid with injections of a gas into the unconventional resource reservoir via the injection well; and
producing hydrocarbons from the unconventional resource reservoir via the injection well or a production well offset from the injection well, wherein the injection well comprises an array of vertical or horizontal injection wells, and wherein the production well comprises an array of vertical or horizontal production wells offset from the array of injection wells.

US Pat. No. 9,957,205

PLANT AND METHOD FOR PRODUCING ETHYLENE

LINDE AKTIENGESELLSCHAFT,...

1. A method of producing ethylene comprising:introducing oxygen and methane into a reactor;
effecting oxidative coupling of the methane in the reactor to form a first material stream;
introducing a hydrocarbon-containing input to a steam cracker;
steam cracking the hydrocarbon-containing input in the steam cracker to produce an olefin-containing and hydrogen-containing crude gas stream;
introducing the first material stream and the olefin-containing and hydrogen-containing crude gas stream into a work-up unit;
separating the first material stream and the olefin-containing and hydrogen-containing crude gas stream using the work-up unit into an ethylene product stream and a C1? material stream;
introducing the C1? material stream into a separation unit;
separating the C1? material stream using the separation unit into a hydrogen-rich product stream and a hydrogen-lean residual gas stream;
recycling at least a substream of the hydrogen-lean residual gas stream into the reactor;
recycling at least a substream of the hydrogen-rich product stream into the work-up unit;
removing an ethane-rich and propane-rich material stream from said first material stream and the olefin-containing and hydrogen-containing crude gas stream in the work-up unit; and
recycling the ethane-rich and propane-rich material stream to the steam cracker.

US Pat. No. 9,908,091

FURNACE WITH REACTOR TUBES HEATABLE ELECTRICALLY AND BY MEANS OF COMBUSTION FUEL FOR STEAM REFORMING A FEEDSTOCK CONTAINING HYDROCARBON

Linde Aktiengesellschaft,...

1. A furnace for steam reforming a feed stream containing hydrocarbon, preferably comprising methane, comprising:
a combustion chamber,
a plurality of reactor tubes arranged in the combustion chamber accommodating a reforming catalyst and configured to pass
the feed stream through the reactor tubes,

at least one burner configured to burn a combustion fuel in the combustion chamber to heat the reactor tubes,
at least one voltage source connected to the plurality of reactor tubes in such a manner that an electric current which heats
the reactor tubes to heat the feedstock is generable in the reactor tubes, and

M outer conductors, wherein M is a natural number greater than or equal to 2,
wherein the at least one voltage source is configured to provide an alternating voltage to each of the M outer conductors,
and

wherein the alternating voltages are phase-shifted relative to one another by 2?/M.

US Pat. No. 10,017,686

PROPPANT DRYING SYSTEM AND METHOD

LINDE AKTIENGESELLSCHAFT,...

1. A method of dehydrating proppant, comprising:pressurizing a proppant silo that is filled with proppant;
pumping gaseous nitrogen into an injection system disposed within the proppant silo to inject the gaseous nitrogen into the proppant silo, wherein the injection system comprises a first perforated ring and a second perforated ring each coupled to the proppant silo;
injecting the gaseous nitrogen into the proppant silo via the injection system; and
exhausting the gaseous nitrogen and moisture from the proppant silo to dehydrate the proppant to a bone-dry condition, while maintaining a back pressure within the proppant silo.

US Pat. No. 9,795,916

PROCESS AND APPARATUS FOR SEPARATING METAL CARBONYLS FROM GAS MIXTURES

LINDE AKTIENGESELLSCHAFT,...

9. A process for separating metal carbonyls from a gas mixture (1) comprising:
scrubbing the gas mixture in a scrubbing column (W) with a physically acting scrubbing medium (6) during which materials including metal carbonyls are dissolved into the scrubbing medium, thereby generating a loaded scrubbing
medium loaded with materials including metal carbonyls,

regenerating said loaded scrubbing medium (8) to produce a regenerated scrubbing medium, wherein materials dissolved in the loaded scrubbing medium are separated off
from the scrubbing medium, and the regeneration is performed only until metal carbonyls dissolved in the loaded scrubbing
medium are removed, and

subsequently using at least a portion of the regenerated scrubbing medium in said scrubbing column (W) to separate metal carbonyls
from said gas mixture, wherein said at least a portion of the regenerated scrubbing medium is fed directly from the regeneration
to scrubbing column (W).

US Pat. No. 10,066,870

PROCESS AND PLANT FOR SEPARATING A GAS MIXTURE

Linde Aktiengesellschaft,...

1. A process for separating a feed mixture predominantly or exclusively containing carbon monoxide and hydrogen, in which the feed mixture is subjected to a cryogenic separation process in which a carbon monoxide-rich liquid and at least one residual gas mixture which is depleted in carbon monoxide and enriched in hydrogen, in comparison with the feed mixture, are formed, characterized in that the at least one residual gas mixture is subjected to a membrane separation process comprising a first membrane separation step and a second membrane separation step, wherein in the first membrane separation step a first hydrogen-rich permeate and a first carbon monoxide-rich retentate are formed, and in the second membrane separation step, a second hydrogen-rich permeate and a second carbon monoxide-rich retentate are formed wherein the first carbon monoxide-rich retentate or the second carbon monoxide-rich retentate is recirculated to the cryogenic separation process, wherein the first hydrogen-rich permeate is transferred from the first membrane separation step, to the second membrane separation step and the first membrane separation step is carried out at a first pressure level at the height of the pressure level of the feed mixture and the second membrane separation step is carried out at a second pressure level below the first pressure level.

US Pat. No. 10,041,729

METHOD FOR THE CRYOGENIC FRACTIONATION OF AIR AND AIR FRACTIONATION PLANT

LINDE AKTIENGESELLSCHAFT,...

1. A method for cryogenic fractionation of air, said method comprising:fractionating air in a distillation column system of an air fractionation plant to obtain a cryogenic liquid containing oxygen;
feeding said cryogenic liquid containing oxygen into a liquid volume present in a vaporization chamber in said distillation column system of said air fractionation plant, and
continuously transferring a proportion of the liquid volume into the gas phase by vaporization, wherein, in addition to oxygen, said cryogenic liquid contains xenon and at least one further component having a boiling point higher than the boiling point of oxygen, and
determining the content of xenon in the liquid volume and using the determined content of xenon as a measure of the content in the liquid volume of said at least one further component having a boiling point higher than the boiling point of oxygen in the liquid volume.

US Pat. No. 9,919,989

SEPARATION SEQUENCE FOR HYDROCARBONS FROM A GENTLE THERMAL CLEAVAGE

LINDE AKTIENGESELLSCHAFT,...

1. A method for separating hydrocarbons generated from a hydrocarbonaceous feed by cleavage, wherein said method comprises:
compressing (2a) and drying (5a, 5b) a raw gas (1) from the cleavage of said hydrocarbonaceous feed, said raw gas (1) containing gaseous hydrocarbons,

introducing said raw gas (1) into a front end C3/C4 separation stage,

separating the raw gas (1) in said front end C3/C4 separation stage into a hydrocarbon fraction of hydrocarbons having a maximum of 3 carbon atoms
(15) and a hydrocarbon fraction of hydrocarbons having at least 4 carbon atoms (17), said front end C3/C4 separation stage comprises a C4 separator (6), a depropanizer (8), and a C2/C4 separation stage (7),

removing a bottom product stream from said C4 separator (6) and introducing said bottom product stream into said C2/C4 separation stage (7), and

removing a liquid stream (18) from said C2/C4 separation stage (7) and introducing said liquid stream into said depropanizer (8),

wherein said hydrocarbon fraction of hydrocarbons having a maximum of 3 carbon atoms is obtained as a gaseous overhead product
(15) from said C4 separator (6),

wherein said hydrocarbon fraction of hydrocarbons having at least 4 carbon atoms is obtained as a bottom liquid product (17) from said depropanizer (8), and

wherein said C2/C4 separation stage (7) is operated at a higher pressure than said C4 separator (6).

US Pat. No. 9,895,650

METHOD AND DEVICE FOR OBTAINING GAS PRODUCTS

LINDE AKTIENGESELLSCHAFT,...

1. A method for physical gas scrubbing comprising:
directing a feed gas stream containing hydrogen, carbon monoxide, and carbon dioxide, and also containing at least one of
carbon oxide sulfide and hydrogen sulfide, through a first scrubbing section in counterflow to a first scrubbing medium which
is preladen with carbon dioxide to selectively separate sulfur components from said feed gas stream and to produce a desulfurized
gas mixture stream, and

separating carbon dioxide from only a partial quantity of the desulfurized gas mixture stream in a second scrubbing section
by scrubbing with an unladen second scrubbing medium and using said second scrubbing medium discharged from said second scrubbing
section, preladen with carbon dioxide, in said first scrubbing section as said first scrubbing medium.

US Pat. No. 10,058,815

METHODS FOR SEPARATING OZONE

Linde Aktiengesellschaft,...

1. A method for the continuous production of ozone and recovery of oxygen in a purge cycle adsorption process having four adsorbent beds, in which the first, second, third and fourth beds each cycle sequentially through the following steps in an overlapping cycle:a) Feeding an oxygen and ozone mixture from an ozone generator to a first bed, wherein ozone is adsorbed in the first bed and non-adsorbed oxygen passes through the first bed and is recycled back to the ozone generator;
b) Receiving rinse gas in a counter current direction to step a) from a third bed in step d) thereby desorbing ozone from the first bed to a customer process;
c) Feeding a nitrogen-rich purge gas in the counter current direction to step a) thereby desorbing the remaining ozone from the first bed to the customer process;
d) Feeding the oxygen and ozone mixture from the ozone generator to the first bed in the same direction as in step a) whereby ozone is adsorbed in the first bed and non-adsorbed oxygen rinse gas displaces the nitrogen-rich purge gas from the first bed and feeds the displaced nitrogen-rich purge gas to a third bed now in step b), preparing the first bed to repeat step a);
e) Feeding an oxygen and ozone mixture from an ozone generator to a second bed, wherein ozone is adsorbed in the second bed and non-adsorbed oxygen passes through the second bed and is recycled back to the ozone generator;
f) Receiving rinse gas in a counter current direction to step e) from a fourth bed in step h) thereby desorbing ozone from the second bed to a customer process;
g) Feeding a nitrogen-rich purge gas in the counter current direction to step e) thereby desorbing the remaining ozone from the second bed to the customer process;
h) Feeding the oxygen and ozone mixture from the ozone generator to the second bed in the same direction as in step e) whereby ozone is adsorbed in the second bed and non-adsorbed oxygen rinse gas displaces the nitrogen-rich purge gas from the second bed and feeds the displaced nitrogen-rich purge gas to a fourth bed now in step f), preparing the second bed to repeat step e);
wherein steps e) to h) are offset in time from steps a) to d) such that the beginning of steps a) and c) overlap with the end of steps e) and g) and the end of steps a) and c) overlap with the beginning of steps e) and g).

US Pat. No. 9,927,170

HEAT EXCHANGER SYSTEM

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger system (1) for heat exchange between at least a first medium (M), and a second medium (K), said system comprising:at least two first pipe space sections (101, 103; 103, 105) for accommodating the first medium (M), and
a first pipe space section connecting means (102; 104), via which the two first pipe space sections (101, 103; 103, 105) are connected to one another in a flow-guiding manner, wherein said first pipe space section connecting means is in the form of at least one pipeline;
wherein one of said two first pipe space sections (101; 103) is surrounded by a first shell space (201, 203) for accommodating the second medium (K), and the other of said two first pipe space section (103; 105) is surrounded by a second shell space (203, 205) for accommodating the second medium (K),
wherein each of said first shell space (201, 203) and said second shell space (203, 205) has a longitudinal axis,
wherein said one of said two first pipe space sections is in the form of a wound pipe bundle in which individual pipes are wound around a central pipe extending along the longitudinal axis of said first shell space, and said other of said first two pipe space sections is in the form of a wound pipe bundle in which individual pipes are wound around a central pipe extending along the longitudinal axis of said second shell space,
wherein said first shell space (201; 203) is defined by a first shell (301; 303) and said second shell space (203; 205) is defined by a second shell (303; 305), and said first shell space and said second shell space are separate from one another,
wherein said second shell (303; 305) is arranged in the vertical direction (Z) a distance above said first shell (301; 303), and said first and second shell spaces (201, 203; 203, 205) are connected to one another in a flow-guiding manner by a first shell space connecting means (202; 204),
wherein said second shell (303) has a means for separating the second medium (K) flowing through said second shell space (203) into a liquid fraction of the second medium (K) and a gaseous fraction of the second medium (K), and said means for separating is
(a) an expanded region in a lower section of said second shell space (203), or
(b) a separator arranged below said wound pipe bundle in said second shell space,
wherein said first shell space connecting means (202; 204) is in the form of pipelines, said first shell space connecting means provides for transport of the gaseous fraction of second medium (K) and transport of the liquid fraction of second medium (K) from a lower section of said second shell space (203, 205) to an upper section of said first shell space (201, 203), wherein the gaseous fraction of second medium (K) is transported separately from the liquid fraction of second medium (K) via said first shell space connecting means.
US Pat. No. 9,643,901

METHOD AND DEVICE FOR GENERATING AN ALKENE

LINDE AKTIENGESELLSCHAFT,...

1. A method for generating an alkene comprising:
cooling a hydrocarbon-comprising feed stream in a cooling appliance, and then heating said hydrocarbon-comprising feed stream
in a further cooling appliance,

thereafter subjecting said hydrocarbon-comprising feed stream to dehydrogenation to generate at least one alkene,
removing a gas stream from said dehydrogenation and sending said gas stream from said dehydrogenation to an adsorber,
removing a gas stream from said adsorber and sending said gas stream from said adsorber to said further cooling appliance
wherein said gas stream from said adsorber is cooled by said hydrocarbon-comprising feed stream,

removing a cooled gas stream from said further cooling appliance, sending said cooled gas stream to a separator, and removing
from said separator a stream of condensed component of said gas stream coming from said adsorber,

splitting said stream of condensed component into a first stream of condensed component and a second stream of condensed component,
sending said first stream of condensed component to said cooling appliance to cool said hydrocarbon-comprising feed stream,
and sending said second stream of condensed component to said further cooling appliance to cool said gas stream from said
adsorber,

wherein the volumetric flows of said first and second streams of condensed component that are fed to said cooling appliance
and said further cooling appliance, respectively, are varied in dependence on the temperature of said hydrocarbon-comprising
feed stream leaving said further cooling appliance.

US Pat. No. 10,000,711

METHOD AND PLANT FOR OBTAINING CRUDE OIL PRODUCTS

Linde Aktiengesellschaft,...

1. Method for obtaining crude oil products wherein a gaseous stream (d) is formed from a first crude oil stream (b) and the gaseous stream (d) is at least partly subjected to a steam cracking process (1), wherein, in the steam cracking process (1), a cracked gas stream (e) is produced which is at least partly quenched with a liquid hydrocarbon stream (f), with formation of a quenching effluent (g), characterised in that at least part of the quenching effluent (g) is used to form a separation feed and that the separation feed is separated (5, 8) by distillation together with a second crude oil stream (c), forming distillation effluents (h, i, k, p, r), the separation feed being formed such that it contains hydrocarbons contained in the quenching effluent (g) having one, two, three, four or more carbon atoms and/or hydrocarbons formed from hydrocarbons of this kind.

US Pat. No. 9,994,782

METHOD AND DEVICE FOR SEPARATING SYNTHESIS GAS

Linde Aktiengesellschaft,...

1. A method for operating a gas scrubber, in which a first feed gas is scrubbed in a first scrubbing installation and a second feed gas is scrubbed in a second scrubbing installation operated in parallel to the first, in each case with the same physically acting scrubbing medium, in order to dissolve sulfur components out of the feed gases containing hydrogen, carbon monoxide, carbon dioxide, and also carbonyl sulfide and/or hydrogen sulfide and to obtain desulfurized gas streams, wherein scrubbing medium streams loaded with sulfur components and co-absorbed carbon monoxide arise, and wherein the first feed gas, the carbon monoxide partial pressure of which is lower than that of the second, is scrubbed in the first scrubbing installation at a lower pressure than the second feed gas in the second scrubbing installation, characterized in that scrubbing medium that is loaded in the second scrubbing installation with sulfur components and co-absorbed carbon monoxide is expanded into the first scrubbing installation in order to convert dissolved carbon monoxide to the gas phase.
US Pat. No. 9,868,685

PROCESSING BY A SEPARATION TECHNIQUE OF A GAS MIXTURE FORMED FROM A PRODUCT STREAM OF A DIMETHYL REACTOR

1. Method for the processing, by separation technology, of a gas mixture (k) which is formed from a product stream (d) of
a reactor (4) for synthesising dimethyl ether from synthesis gas (b), and which contains at least dimethyl ether, carbon dioxide and at
least one other component which is lower-boiling than carbon dioxide, characterised in that the gas mixture (k) at a first
pressure level is cooled from a first temperature level to a second temperature level and a fraction of the gas mixture (k)
that remains in gaseous form at the second temperature level is washed in an absorption column (16) with a reflux (v) predominantly containing carbon dioxide, the reflux (v) predominantly containing carbon dioxide being
at least partially formed from a fraction of the gas mixture (k) which is separated in liquid form during the cooling.
US Pat. No. 9,790,433

PROCESS FOR PRODUCING SYNTHESIS GAS

Linde Aktiengesellschaft,...

1. A process for producing hydrocarbons, in which a first feed substream and a second feed substream are obtained from a hydrocarbonaceous
feed stream, of which the first feed substream is converted by means of partial oxidation or autothermal reforming to a first
synthesis gas stream and the second feed substream is converted by means of steam reforming to a second synthesis gas stream
and subsequently combined with the first synthesis gas stream to give a third synthesis gas stream, of which at least a first
portion of the third synthesis gas stream is converted by Fischer-Tropsch synthesis to a crude product stream comprising hydrocarbons
of different chain lengths, from which light hydrocarbons are separated in a tail gas, in order to recycle them and use them
in the partial oxidation or autothermal reforming, characterized in that unsaturated hydrocarbons are separated from at least
a portion of the tail gas by a cryogenic separation method in order to obtain a stream which is substantially free of unsaturated
hydrocarbons as a feed for the partial oxidation or autothermal reforming.

US Pat. No. 9,766,024

METHOD FOR CONTROLLING A TEMPERATURE DISTRIBUTION IN A HEAT EXCHANGER

Linde Aktiengesellschaft,...

1. Device comprising:
a heat exchanger,
at least one optical waveguide arranged in the heat exchanger for measuring an actual temperature distribution in the heat
exchanger, and

a measuring device connected to the at least one optical waveguide, which device is designed for launching light into the
at least one optical waveguide and evaluating light scattered in the at least one optical waveguide for determining the actual
temperature distribution, and

the device having a control means for controlling at least one flow of a fluid medium carried in the heat exchanger in such
a way that the actual temperature distribution is made to approximate a target temperature distribution;
characterized in that the heat exchanger has a tube bundle with a multiplicity of tubes, which are arranged in a shell space
of the heat exchanger, the at least one optical waveguide being arranged in the interior space of a tube of the heat exchanger
in the shell space.

US Pat. No. 9,644,619

COMPRESSION MACHINE WITH A BODY OSCILLATING BETWEEN TWO REVERSAL POINTS

Linde Aktiengesellschaft,...

9. A method for designing a compression machine (110) in which an oscillating body (111) oscillates between two reversal points (U1, U2), comprising:
oscillating movement (111a) of the oscillating body (111) between decompressing and compressing in alternating manner at least a portion of a fluid (112) of the machine;

exerting a piston force (FM) with the oscillating body on the fluid (112);

exerting a fluid force (FF) with the fluid on the oscillating body (111);

providing a resulting compression force (F*) as a difference between the fluid force (FF) and the piston force (FM);

selecting a first mass (m1) of the oscillating body (111) such that a maximum value of the resulting compression force (F*) when the oscillating body (111) is used is less by a predetermined factor (F) than a maximum value of the resulting compression force (F*) when an oscillating
reference body (121) having a reference mass (mref) is used in a reference compression machine (120) of the same construction as the compression machine (110) and using the fluid (112), wherein the first mass (m1) is greater than the reference mass (mref) by a percentage that is a function of the predetermined factor (F); and

reducing the maximum value of the resulting compression force (F*) by the predetermined factor (F) by reducing an effective
cross-sectional area (A) of the oscillating reference body (121) if the oscillating reference body (121) were used.

US Pat. No. 9,670,418

PROCESS FOR PREPARING OLEFINS BY THERMAL STEAMCRACKING

1. A process for converting hydrocarbon inputs by thermal steamcracking to give at least one olefin-containing product stream
comprising at least ethylene and propylene, by at least partly converting a hydrocarbon input in at least one cracking furnace
(2), characterized in that the hydrocarbon input is converted under mild cracking conditions in the cracking furnace (2), mild cracking conditions meaning that propylene to ethylene are present in a ratio of 0.85 to 1.6 kg/kg at the cracking
furnace exit, and the hydrocarbon input comprising predominantly hydrocarbons having a maximum carbon number of 5.

US Pat. No. 10,047,876

FLOW APPARATUS

LINDE AKTIENGESELLSCHAFT,...

1. A flow apparatus for a vessel storing fluid under pressure having a flow control valve having a housing and an outlet aperture and further including a valve seat and a sealing member for sealing against said seat such as to obturate said outlet, said apparatus further including an actuator connected to said sealing member for moving said sealing member between an open position of the valve in which said sealing member unobturates the outlet aperture and a closed position in which said sealing member obturates said outlet, including an electrical switch for controlling a supply of electrical current to one or more electrical components and wherein said switch is operably connected to said sealing member, such that movement of the sealing member from the open position to the closed position causes the switch to shift between a first position and a second position, wherein a passage of full current is allowed to flow when said valve is in the first position and a limited or stand by current that is greater than zero is allowed to flow when said valve is in the second position, wherein at least one of said one or more electrical components has a fully operational mode and a standby mode and wherein said switch is connected thereto for allowing a first, higher, level of current to said component when in said fully operational mode and a second, lower, level of current to said component when in said standby mode.

US Pat. No. 9,969,662

METHOD FOR SEPARATING OLEFINS WITH GENTLE CLEAVAGE

LINDE AKTIENGESELLSCHAFT,...

1. A process for producing olefins, comprising:feeding a hydrocarbon-containing feed into a cracking furnace where hydrocarbons of the hydrocarbon-containing feed are at least partly cracked to form a cracking gas encompassing ethylene and propylene, and
passing said cracking gas (1) in succession through a lower section (11) and an upper section (12) of a scrubbing column (10), wherein a fraction (43) rich in petroleum spirit is used in said lower section (11) of the scrubbing column (10) as liquid scrubbing medium in countercurrent flow to said cracking gas, and a water-rich fraction (31) is used in said upper section (12) of the scrubbing column (10) as liquid scrubbing medium in countercurrent flow to said cracking gas, wherein said fraction (43) rich in petroleum spirit is a hydrocarbon fraction of which 80% boils at a temperature of 130° C. at atmospheric pressure,
wherein said scrubbing column (10) is divided into said lower section (11) and said upper section (12) by a tray (14),
wherein a liquid petroleum spirit-water phase (51) is taken off from said tray (14) of said scrubbing column (10), and said liquid petroleum spirit-water phase (51) is separated into a liquid petroleum spirit fraction and a liquid water fraction and,
wherein said liquid petroleum spirit fraction is at least partly introduced into the lower section (11) of said scrubbing column (10) as said fraction (43) rich in petroleum spirit, and said liquid water fraction is at least partly introduced as said water-rich fraction (31) into the upper section (12) of said scrubbing column (10).

US Pat. No. 9,874,410

HEAT EXCHANGER WITH ELASTIC ELEMENT

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger for indirect heat exchange between a first fluid and a second fluid, with
a shell, which surrounds a shell space for receiving the first fluid, a tube bundle comprising a plurality of tubes arranged
in the shell space and intended for receiving the second fluid, the tubes being coiled in a number of tube layers around a
core tube of the tube bundle and

a jacket, which is arranged in the shell space and encloses an outermost tube layer of the tube bundle in the radial direction
of the tube bundle, so that between the tube bundle and that jacket there is formed an intermediate space surrounding the
tube bundle,

characterizedin that at least one elastic element is arranged with a first region between neighboring tube portions in the outermost tube
layer, the at least one elastic element having a second region, which protrudes out of the outermost tube layer and is intended
for abutment against an inner side of the jacket that is facing the tube bundle and/or is designed for connecting the elastic
element to the jacket.

US Pat. No. 9,797,654

METHOD AND DEVICE FOR OXYGEN PRODUCTION BY LOW-TEMPERATURE SEPARATION OF AIR AT VARIABLE ENERGY CONSUMPTION

Linde Aktiengesellschaft,...

1. A method for oxygen production by low-temperature separation of air with variable energy consumption in a distillation
column system having a high-pressure column, a low-pressure column as well as a main condenser and a side condenser which
are both in the form of condenser-evaporators, wherein in the method
atmospheric air is compressed to a total air pressure in a main air compressor, cooled in a main heat exchanger and fed at
least in part to the high-pressure column,

in the main condenser, gaseous nitrogen from the high-pressure column is at least partially liquefied,
at least a portion of the liquid nitrogen generated in the main condenser is used as reflux in at least one of the columns
of the distillation column system,

a first liquid oxygen stream from the bottom of the low-pressure column is introduced into the side condenser and is at least
partially evaporated therein in indirect heat exchange with at least a portion of the compressed and cooled feed air,

at least a portion of the evaporated first liquid oxygen stream is obtained as a gaseous oxygen product,
in a first operating mode with a first energy consumption
a first amount of the first liquid oxygen stream from the bottom of the low-pressure column is introduced into the side condenser
and

a first amount of air is compressed in the main air compressor to a first outlet pressure,in a second operating mode with a second energy consumption lower than the first energy consumption
a second amount of air, which is smaller than the first amount of air, is compressed in the main air compressor,
a second amount of the first liquid oxygen stream from the bottom of the low-pressure column, which is smaller than the first
amount of the first liquid oxygen from the bottom of the low-pressure column, is introduced into the side condenser, and

a second liquid oxygen stream is fed to the side condenser in addition to the first liquid oxygen stream,characterized in that
in both operating modes
an intermediate liquid from an intermediate point of the low-pressure column is introduced into an evaporation space of the
main condenser, and at least a portion of the vapor generated in the main condenser is introduced into the low-pressure column,

an oxygen stream is removed from a lower region of the low-pressure column and passed into an evaporation space of an additional
condenser which is in the form of a condenser-evaporator,

at least a portion of the gas formed in the evaporation space of the additional condenser is introduced as rising vapor into
the low-pressure column,

the oxygen evaporated in the side condenser is heated in the main heat exchanger and obtained as the gaseous oxygen product,
a first nitrogen stream from the distillation column system is compressed in a cold compressor and then introduced at least
in part into a liquefaction space of the additional condenser, and

at least a portion of the liquid nitrogen generated in the additional condenser is used as reflux in at least one of the columns
of the distillation column system, wherein

in the first operating mode
a first amount of nitrogen is compressed in the cold compressor,
a first amount of gaseous nitrogen from the high-pressure column is introduced into the main condenser, and
the first amount of air is compressed in the main air compressor to a first total air pressure, and
in the second operating mode
a second amount of nitrogen, which is greater than the first amount of nitrogen, is compressed in the cold compressor,
a second amount of gaseous nitrogen from the high-pressure column, which is smaller than the first amount of gaseous nitrogen,
is introduced into the main condenser, and

the second amount of air is compressed in the main air compressor to a second total air pressure which is lower than the first
total air pressure.

US Pat. No. 10,005,004

OIL SCRUBBING COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. An oil scrub column having a shell which is extended along a longitudinal axis and encloses an interior of the column, the interior being subdivided into a petroleum spirit section and into an oil section, which is arranged below the petroleum spirit section along the longitudinal axis and which is separated from the petroleum spirit section in particular by means of a chimney tray, there being arranged in the petroleum spirit section a plurality of first mass transfer trays and in the oil section a plurality of second mass transfer trays, where the oil scrub column is designed to guide a cracking gas stream through the second mass transfer trays of the oil section and subsequently through the first mass transfer trays of the petroleum spirit section, where the oil scrub column is designed to subject the second mass transfer trays in the oil section to a liquid, hydrocarbon-containing second scrubbing medium, in order to separate out an oil fraction from the cracking gas stream, and where the oil scrub column is designed to subject the first mass transfer trays in the petroleum spirit section to a liquid, hydrocarbon-containing first scrubbing medium, in order to separate out a petroleum spirit fraction from the cracking gas stream,characterizedin that the second mass transfer trays each have a plurality of runoff elements extending parallel to and at a distance from one another, in the form of angular profiles, where the runoff elements each have first and second runoff surfaces, where the two runoff surfaces converge along the longitudinal axis towards the petroleum spirit section and meet, to form an edge extending transversely to the longitudinal axis, so that the second scrubbing medium introduced onto the edges of the runoff elements flows off from the respective runoff element via the runoff surfaces at both sides of the respective edge, and where the number of second mass transfer trays in the oil section is greater than the number of first mass transfer trays in the petroleum spirit section, and where the petroleum spirit section has a shorter length along the longitudinal axis than the oil section, and where the first mass transfer trays are designed as sieve trays, bubble trays or valve trays.

US Pat. No. 9,994,781

PROCESS AND SYSTEM FOR OBTAINING CRUDE OIL PRODUCTS

Linde Aktiengesellschaft,...

1. Method for obtaining crude oil products wherein a gaseous stream (d) is formed from a crude oil stream (b) by evaporation and the gaseous stream (d) is at least partly subjected to a steam cracking process (1), wherein, in the steam cracking process (1), a cracked gas stream (e) is produced which is at least partly quenched with a liquid hydrocarbon stream (f), with formation of a quenching effluent (g), characterised in that a fraction (f) that remains liquid during the evaporation (2) of the crude oil stream (b) is at least partly used to form the hydrocarbon stream (f) using for quenching, wherein the liquid hydrocarbon stream used for the quenching is low in or free from components that have been separated from the quenching effluent (g) or a stream formed from the quenching effluent (g) and the quenching effluent is obtained by quenching with the liquid hydrocarbon stream (f) at a temperature in the range from 0 to 250° C.

US Pat. No. 9,896,391

PROCESS FOR PREPARING LINEAR ?-OLEFINS

LINDE AKTIENGESELLSCHAFT,...

1. A process for preparing linear ?-olefins comprising:
introducing ethylene into a reactor in a liquid state,
oligomerizing said ethylene in the presence of an organic solvent and a homogeneous liquid catalyst resulting in linear ?-olefins,
recovering from the reactor a liquid product stream comprising the linear ?-olefins and a gaseous stream comprising ethylene,
partly condensing the gaseous stream to form a biphasic mixture,
separating in a separator the biphasic mixture to form a liquid phase and a gas phase,
recycling the liquid phase directly into the reactor,
compressing the gas phase, and
recycling the compressed gas phase into the reactor in gaseous form,
wherein the gas phase recycled to the reactor consists of the entire gas phase from the separator.

US Pat. No. 9,878,910

TREATMENT OF GASES

Linde Aktiengesellschaft,...

1. A process for recovering sulphur from a hydrogen sulphide containing gas stream, the process comprising: (i) providing
a gas stream comprising hydrogen sulphide gas; (ii) passing, the gas stream into an apparatus comprising a first thermal-reaction-region
and a first catalytic region comprising an oxygen scavenger material comprising iron; and (1) reacting a portion of the hydrogen
sulphide gas in the first thermal-reaction-region to form sulphur dioxide and water vapour and reacting a further portion
of the hydrogen sulphide to form sulphur vapour and water vapour, to form a resultant-gas-mixture comprising water vapour,
sulphur vapour, sulphur dioxide, and hydrogen sulphide; and (2) passing at least a portion of the resultant-gas-mixture to
the first catalytic-region, whereby at least a portion of the hydrogen sulphide is reacted, in the presence of a catalyst
selected from the group consisting of an oxygen tolerant catalyst selected from the group consisting of TiO2 and Al2O3, to form further sulphur vapour and water vapour; and after step (1), step (2), or both step (1) and step (2) condensing
at least a portion of said sulphur vapour to form liquid sulphur and passing at least a portion of the liquid sulphur to a
sulphur pit; wherein an off-gas formed or contained in the sulphur pit by degassing the liquid sulphur in the sulphur pit
at a pressure of from 0.5 to 1 MPa and further comprising combining the off-gas with a gas stream comprising O2 before the off-gas is recycled from the sulphur pit into the process downstream of the first thermal-reaction-region and at
least a portion of the off-gas is recycled from the sulphur pit to the first catalytic region or zone or more further thermal-reaction-regions
downstream of the first thermal-reaction-region and further comprising recycling at least a portion of the off-gas to a second
thermal-reaction-region downstream of the first thermal-reaction-region; wherein the first thermal-reaction-region is housed
in a first single unit together with a first waste heat boiler and wherein the second thermal-reaction-region is housed in
a second single unit together with a second waste heat boiler, wherein the gas stream of step (i) is passed through the first
thermal-reaction-region, through the first waste heat boiler to the second thermal-reaction-region where it is combined with
at least a portion of the recycled off-gas then said combined stream is passed through the second waste heat boiler, or wherein
the first and second thermal-reaction-regions are housed in a single unit together with a multi-pass waste heat boiler; wherein
the gas stream of step (1) is passed through the first thermal-reaction-region, through the multi-pass waste heat boiler to
the second thermal-reaction-region where it is combined with at least a portion of the recycled off-gas, then said combined
stream is passed through the multi-pass waste heat boiler.

US Pat. No. 9,708,787

METHOD FOR PRODUCING A CONTIGUOUS ICE BODY IN A GROUND-FREEZING PROCESS

Linde Aktiengesellschaft,...

1. A method for producing a contiguous ice body in a ground region, comprising inserting first cooling lances into the ground
region, in which the contiguous ice body should be produced in the presence of a flow of a fluidic flow medium flowing through
the ground region, introducing a first refrigerant into the first cooling lances, and furthermore inserting at least one second
cooling lance into the ground region on a side of the first cooling lances facing the flow and introducing a second refrigerant,
which has a temperature that is lower than the temperature of the first refrigerant, into the at least one second cooling
lance in order to promote the formation of a contiguous ice body enclosing all cooling lances.

US Pat. No. 9,630,891

METHOD FOR CONVERTING HYDROCARBON FEEDSTOCKS INTO OLEFINIC PRODUCT FLOWS BY MEANS OF THERMAL STEAM CRACKING

Linde Aktiengesellschaft,...

1. A process for converting feeds composed of hydrocarbons by thermal steamcracking to at least one olefin-containing product
stream comprising at least ethylene and propylene, with at least partial conversion of the feeds in at least one first cracking
furnace (1) and in at least one second cracking furnace (2), wherein a fresh feed (B) is fractionated into at least one first and one second fresh feed fraction (B1, B2) of different composition and the first fresh feed fraction (B1) is conducted at least partly into the first cracking furnace (1) and the second fresh feed fraction (B2) at least partly into the second cracking furnace (2), characterized in that the second fresh feed fraction (B2) comprises predominantly hydrocarbons having a maximum carbon number of 5, in that the first fresh feed fraction (B1) comprises predominantly hydrocarbons having a carbon number of at least 6, in that cracking conditions that lead to a ratio
of propylene to ethylene of 0.7 to 1.6 kg/kg at the cracking furnace exit exist in the second cracking furnace (2), and in that cracking conditions that lead to a ratio of propylene to ethylene of 0.25 to 0.85 kg/kg at the cracking furnace
exit exist in the first cracking furnace (1), the values attained for the ratio of propylene to ethylene in the second cracking furnace (2) being above those in the first cracking furnace (1).

US Pat. No. 10,188,982

METHOD AND INDUSTRIAL PLANT FOR OBTAINING HELIUM FROM A HELIUM-CONTAINING FEED GAS

LINDE AKTIENGESELLSCHAFT,...

1. A method for obtaining helium from a helium-containing feed gas, said method comprising:feeding the helium-containing feed gas to a prepurifying unit wherein undesirable components are removed from the helium-containing feed gas in a pressure swing adsorption process to obtain a prepurified feed gas;
feeding the prepurified feed gas to a membrane unit connected downstream of the prepurifying unit, said membrane unit having at least one membrane which is more permeable to helium than to at least one further component present in the prepurified feed gas, to produce a pressurized low-helium retentate stream;
feeding said pressurized low-helium retentate stream from the membrane unit to the prepurifying unit; and
displacing helium-rich gas with the aid of the pressurized low-helium retentate stream from an adsorber to be regenerated in the prepurifying unit into an already regenerated adsorber of the prepurifying unit.

US Pat. No. 10,047,759

METHOD FOR CONTROLLING THE SPEED OF CRYOGENIC COMPRESSORS ARRANGED IN SERIES FOR COOLING CRYOGENIC HELIUM

LINDE AKTIENGESELLSCHAFT,...

1. A method for controlling the speeds of compressors arranged in series that are formed to compress a fluid, comprising:Specifying a desired inlet pressure which the fluid should have at an entry of the compressor arranged the furthest upstream,
Recording an actual inlet pressure of the fluid at said entry,
Recording an actual discharge pressure of the fluid at an output of the compressor arranged the furthest downstream,
Establishing an actual total pressure ratio, wherein the actual total pressure ratio corresponds to the quotient of the actual discharge pressure and the actual inlet pressure,
Determining a proportional integral value based on the deviation of the actual inlet pressure from the desired inlet pressure,
Determining the capacity factor of the proportional integral value and the actual total pressure ratio,
Establishing a model total pressure ratio based on the actual total pressure ratio and the capacity factor,
Determining a reduced desired speed for each compressor, wherein the respective reduced desired speed is determined as a function value of a control function associated with the respective compressor, which control function assigns a reduced desired speed to each value pair consisting of capacity factor and model total pressure ratio, and
Converting the reduced desired speeds into target speeds and adjusting the speed of each compressor to the respectively assigned target speed.

US Pat. No. 9,895,659

METHODS FOR REMOVING CONTAMINANTS FROM EXHAUST GASES

Linde Aktiengesellschaft,...

1. A method for removing contaminants from a gas stream comprising the steps:
a) feeding the gas stream containing contaminants into a dry or semi-dry scrubber at a location near one end of the dry or
semi-dry scrubber;

b) contacting the gas stream containing contaminants with a sorbent;
c) injecting ozone into the dry or semi-dry scrubber downstream of the contact between the gas stream containing contaminants
and the sorbent, the ozone being injected at a location that is at least 15% of the total height of the dry or semi-dry scrubber
above a lower end of the dry or semi-dry scrubber and higher than the location where the gas stream is fed to the dry or semi-dry
scrubber, thereby oxidizing the contaminants in the gas stream;

d) contacting the oxidized contaminants with sorbent in remaining height or volume of the scrubber downstream of ozone injection;
and

e) separating the sorbent from the gas stream exiting the dry or semi-dry scrubber.

US Pat. No. 9,989,306

METHOD AND DEVICE FOR RECOVERING HIGH-PRESSURE OXYGEN AND HIGH-PRESSURE NITROGEN

LINDE AKTIENGESELLSCHAFT,...

1. A method for recovering high-pressure oxygen and high-pressure nitrogen by low-temperature separation of air in a distillation-column system comprising a high-pressure column (4) and a low-pressure column (5), which are in heat-exchange connection via a main condenser (6) which is a condenser-evaporator, said method comprising:Cooling a first air feed stream (100, 101) at a first, subcritical, pressure, which is less than 1 bar above the operating pressure of said high-pressure column (4), in a main heat exchanger (2), and introducing (3) the cooled first air feed stream into said high-pressure column (4),
Cooling a second air feed stream (200) at a second, supercritical, pressure, and subsequently depressurizing and introducing the cooled second air feed stream into said distillation-column system,
Pressurizing (17) a liquid oxygen stream (16) from said low-pressure column (5), in the liquid state, to a first product pressure which is higher than the operating pressure of said low-pressure column, heating said liquid oxygen stream (16) at the first product pressure in a heat-exchanger system (11, 12) having at least two helically-wound heat exchangers connected in series, and ultimately recovering as a high-pressure oxygen product stream (18),
Pressurizing (20) a liquid nitrogen stream (19) from said high-pressure column (4) or from said main condenser (6), in the liquid state, to a second product pressure which is higher than the operating pressure of said high-pressure column (4), heating said liquid nitrogen stream (19) at the second product pressure to approximately ambient temperature, and ultimately recovering as a high-pressure nitrogen product stream (21),
Cooling a first partial stream (210) of said second air feed stream (200) by indirect heat exchange in said main heat exchanger (2),
Cooling a second partial stream (202, 221) of said second air feed stream (200) in said heat-exchanger system (11, 12),
Merging said first partial stream (211) and said second partial stream (221) of the second air feed stream downstream from their cooling to form a merged second air feed stream,
Wherein the heating of the liquid nitrogen stream (19) that is pressurized in liquid form is performed in said main heat exchanger (2) by indirect heat exchange with said first air feed stream (100) and said first partial stream (210) of said second air feed stream (200),
Wherein said merged second air feed stream is depressurized in a liquid turbine (13) before said merged second air feed stream is introduced (205, 3) into said distribution-column system,
a third partial stream (230) of said second air feed stream (200), cooled to an intermediate temperature in said heat-exchanger system, is branched off from the second partial stream (206) of said second air feed stream between the two helically-wound heat exchangers (11, 12) of said heat-exchanger system, and introduced into the main heat exchanger (2) at an intermediate point and further cooled therein, and
after said third partial stream (230) is branched off from said second partial stream, the remainder of the second partial stream (206) of the second air feed stream is further cooled in said heat-exchanger system (12),
said method further comprising cooling a third air feed stream (300) at a third pressure which is above said first, subcritical, pressure and below said second, supercritical, pressure, in said main heat exchanger (2), removing the cooled third air feed stream from said main heat exchanger at an intermediate point, expanding the cooled third air feed stream, and introducing the cooled and expanded third air feed stream into said high-pressure column (4), and
wherein the entirety of said cooled first air feed stream, said cooled second air feed stream, and said cooled and expanded third air feed stream are introduced into said high-pressure column (4).

US Pat. No. 9,964,353

SYSTEM AND METHOD FOR GENERATION OF OXYGEN BY LOW-TEMPERATURE AIR SEPARATION

Linde Aktiengesellschaft,...

1. A system for generation of oxygen by low-temperature air separation comprisinga high-pressure column and a low-pressure column,
a main condenser which is constructed as a condenser-evaporator, wherein a liquefaction space of the main condenser is flow-connected to the top of the high-pressure column and an evaporation space of the main condenser is flow-connected to the low-pressure column,
an oxygen product line that is connected to the low-pressure column,
an auxiliary column,
introducing a gaseous fraction, the oxygen content of which is equal to that of air or higher, into a sump region of the auxiliary column and having a reflux liquid line for introducing a liquid stream from the high-pressure column,
the main condenser, or the low-pressure column as reflux to the top of the auxiliary column, wherein the liquid stream has a nitrogen content that is at least equal to that of air,
characterized by
an argon removal column that is flow-connected to an intermediate site of the low-pressure column,
an argon removal column top condenser that is constructed as a condenser-evaporator, wherein a liquefaction space of the argon removal column top condenser is flow-connected to the top of the argon removal column,
a crude oxygen line for introducing liquid crude oxygen from a sump of the high-pressure column into an evaporation space of the argon removal column top condenser and
wherein
the low-pressure column is arranged beside the high-pressure column,
the main condenser is arranged over the high-pressure column,
the auxiliary column is arranged over the main condenser,
the argon removal column is arranged over the auxiliary column and
the argon removal column top condenser is arranged over the argon removal column.

US Pat. No. 9,752,825

LIQUEFACTION OF A HYDROCARBON-RICH FRACTION

Linde Aktiengesellschaft,...

1. A process for liquefying and subcooling a hydrocarbon-rich fraction comprising:
a) providing a flow of a hydrogen-rich fraction;
b) cooling the hydrogen-rich fraction in a first heat exchanger to form a partially condensed fraction;
c) separating the partially condensed fraction to form a heavy hydrocarbons-containing liquid fraction and a hydrocarbon-rich
gas fraction;

d) liquefying the hydrocarbon-rich gas fraction in a further heat exchanger to form a liquefied hydrocarbon-rich fraction;
wherein the method further comprises operating a separate heat exchanger comprising:
e) operating in a normal mode comprising
e1) the liquefied hydrocarbon-rich fraction in the separate heat exchanger to produce a subcooled hydrocarbon-rich fraction;
e2) monitoring an amount of solid deposition formed in the separate heat exchanger;
f) when the amount of solid deposition reaches a defined value, operating in a cleaning mode which comprises;
f1) interrupting the supply of the liquefied hydrocarbon-rich fraction to the separate heat exchanger at the latest when the
amount of solid deposition value in the separate heat exchanger reaches a defined value, such that the separate heat exchanger
switches to the cleaning mode;

f2) feeding a defrost gas into the the separate heat exchanger so that the solid deposition is melted to form a melted deposition;
f3) drawing off the melted deposition from the separate heat exchanger and
g) subsequently returning to operating the separate heat exchanger in the normal mode in which the liquefied hydrocarbon-rich
fraction is returned to the separate heat exchanger to be subcooled.

US Pat. No. 9,664,384

VALVE ARRANGEMENT

Linde Aktiengesellschaft,...

1. Valve arrangement for a system which is loaded with fluid, for connecting a first pressure region to a second pressure
region by means of a first valve and a second valve which is connected in series thereto, a third valve connecting a region
between the first valve and the second valve to a third pressure region; the first valve being set up such that the first
valve closes when a pressure which prevails on a side of the second pressure region is at least as high as a pressure which
prevails on a side of the first pressure region; the first valve being coupled to the second valve in such a way that the
second valve closes when the first valve closes; the second valve being coupled to the third valve in such a way that the
third valve opens when the second valve closes wherein the first valve is coupled via a switching apparatus to the second
valve.

US Pat. No. 10,288,360

METHOD FOR PRODUCING A PLATE HEAT EXCHANGER WITH MULTIPLE HEAT EXCHANGER BLOCKS CONNECTED BY SOLDER-COATED SUPPORTS

LINDE AKTIENGESELLSCHAFT,...

1. A method for producing a plate heat exchanger with at least two heat exchanger blocks, which are produced separately from one another in a brazing furnace, and each heat exchanger block has multiple parting sheets, arranged parallel to one another and form a multiplicity of heat exchange passages for fluids involved in the heat exchange, said method comprising:after separately producing said at least two the heat exchanger blocks in the brazing furnace, heating at least one support provided with solder to melt the solder, wherein said at least one support is arranged between opposing outer surfaces of heat exchanger blocks to be connected,
wherein said solder has a lower melting point than solder used for connecting components within the heat exchanger blocks, and
placing the heat exchanger blocks to be connected one on top of one another or against one another in such a way that said at least one support is secured between the opposing outer surfaces.

US Pat. No. 10,161,676

PROCESS AND APPARATUS FOR THE LOW-TEMPERATURE FRACTIONATION OF AIR

Linde Aktiengesellschaft,...

1. A process for the low-temperature fractionation of air in a distillation column system that has at least one separating column, in which feed air is compressed in a main air compressor, the compressed feed air is cooled down in a main heat exchanger and introduced into the distillation column system wherein at least one product stream is drawn from the distillation column system, the at least one product stream is warmed up in the main heat exchanger and drawn off as a gaseous end product; andwherein at least one process parameter(s) of the distillation column system is set by a basic controller, characterized in that the control of the at least one process parameter(s) set by the basic controller is performed by a combination of an Automatic Load Control (ALC) control and an Model Predictive Control (MPC) controller;
wherein the ALC control contains various load cases recorded during trial operation of the distillation column system corresponding to target values of the at least one process parameter(s) output by the basic controller as well as transitions between the various load cases;
the ALC control outputs a first target value of one of the various load cases to the MPC controller, the MPC controller capable of calculating from the first target value, both a primary set point value and a change to the primary set point value forming a changed primary set point value, in which the primary set point value and/or changed primary set point value is then sent to the basic controller as a first process parameter of the at least one process parameter(s) output by the basic controller.

US Pat. No. 10,245,549

METHOD AND DEVICE FOR SEPARATING OFF ELECTROLYTES FROM SYNTHESIS GASES

LINDE AKTIENGESELLSCHAFT,...

1. A method for separating off an electrolyte from a first synthesis gas and a second synthesis gas, each containing an electrolyte, said method comprising:subjecting each of the two synthesis gases to a water scrubbing in a first water scrubber column and a second water scrubber column, respectively, wherein a substantially electrolyte-free synthesis gas and a scrubbing water loaded with electrolyte are separated and obtained,
wherein at least a part of the scrubbing water that is loaded with an electrolyte separated off in the scrubbing of the first synthesis gas is used as scrubbing medium for the scrubbing of the second synthesis gas, and
wherein said electrolyte in said first and second synthesis gases is ammonia and/or hydrogen chloride.

US Pat. No. 10,215,183

METHOD FOR PRESSURE AND TEMPERATURE CONTROL OF A FLUID IN A SERIES OF CRYOGENIC COMPRESSORS

LINDE AKTIENGESELLSCHAFT,...

1. A method for pressure and temperature control of a fluid in a series of cryogenic compressors, said method comprising:detecting an actual speed for each compressor,
detecting an actual inlet pressure and an actual inlet temperature at the entry of the most upstream, first compressor of the series,
specifying a desired inlet pressure for said first compressor of the series,
determining a speed index for each compressor from a maximum speed of the respective compressor and the actual speed of the respective compressor,
determining a proportional value from the deviation of the actual inlet pressure from the desired inlet pressure,
determining a priority value, wherein the priority value is determined from the proportional value, if the proportional value is smaller than the smallest speed index of all compressors of the series, and wherein the priority value is determined from the smallest speed index among all compressors of the series, if the proportional value is greater than the minimum speed index among all compressors of the series,
determining a desired inlet temperature for the first compressor of the series and a desired speed for each compressor, with the aid of the priority value,
adjusting the actual inlet temperature of said first compressor to the determined desired inlet temperature, and
adjusting the actual speed for each compressor to the determined desired speed for each compressor.

US Pat. No. 10,215,489

METHOD AND DEVICE FOR THE LOW-TEMPERATURE SEPARATION OF AIR AT VARIABLE ENERGY CONSUMPTION

LINDE AKTIENGESELLSCHAFT,...

1. A method for variably obtaining a pressurized-gas by means of low-temperature separation of air in a distillation column system comprising a high-pressure column and a low-pressure column, said method comprising:compressing the entire feed air in a main air compressor to a first pressure, which is at least 4 bar higher than an operating pressure of the high-pressure column,
cooling a first partial stream of the feed air compressed in the main air compressor to a first intermediate temperature in a main heat exchanger, and work expanding the first partial stream in a first air turbine to form an expanded first partial stream,
introducing at least a first part of the expanded first partial stream into the distillation column system,
further compressing a second partial stream of the feed air compressed in the main air compressor to a second pressure, which is higher than the first pressure, in a first booster air compressor driven by the first turbine, cooling the second partial stream in the main heat exchanger, and subsequently expanding the second partial stream and introducing the expanded second partial stream into the distillation column system,
removing a first product stream in liquid form from the distillation column system and increasing the pressure of the first product stream to a first product pressure,
evaporating or pseudo-evaporating and warming the first product stream in the main heat exchanger,
obtaining warmed first product stream as a first pressurized-gas product,
compressing a first process stream, containing at least 78 mol % of nitrogen, in a multi-stage compressor from an inlet pressure to a final pressure,
wherein the multi-stage compressor is a nitrogen product compressor and
wherein the first process stream is a first gaseous nitrogen stream from the low-pressure column,
said method further comprising
in said first operating mode, obtaining a first amount of said first pressurized-gas product,
in said second operating mode, obtaining a second amount of said first pressurized-gas product, which is smaller than the first amount first pressurized-gas product,
in the first operating mode, obtaining a second process stream which is a first gaseous stream from the high-pressure column and contains at least 78 mol % of nitrogen, and wherein no amount or a first amount of the second process stream is mixed with the first process stream downstream of a first stage of the multi-stage compressor and, with the first process stream, is compressed in the multi-stage compressor, and
in the second operating mode, a second amount of the second process stream is compressed in the multi-stage compressor, wherein said second amount of the second process stream is greater than the amount of the second process stream compressed in the multi-stage compressor in said first operating mode.

US Pat. No. 10,207,928

COMBINED MEMBRANE-PRESSURE SWING ADSORPTION METHOD FOR RECOVERY OF HELIUM

LINDE AKTIENGESELLSCHAFT,...

1. A method for obtaining helium from a helium-containing process gas, said method comprising:a) feeding a helium-containing process gas having a pressure of less than 15 bar to a compression,
b) feeding the process gas that leaves the compression to a prepurifying unit in which troublesome components are removed;
c) guiding the process gas from the troublesome components have been removed to a first membrane separation stage having a first membrane which is more readily permeable for helium than for at least one further component present in the process gas;
d) guiding a first retentate stream that has not passed through the first membrane to a second membrane separation stage having a second membrane which is more readily permeable for helium than for at least one further component present in the process gas;
e) separating helium from a first helium-containing permeate stream that has passed through the first membrane by means of pressure swing adsorption to produce a helium-containing product stream; and
f) recycling a second helium-containing permeate stream that has passed through the second membrane to the first membrane separation stage, and recycling a purge gas from the pressure swing adsorption to the first membrane separation stage.

US Pat. No. 10,207,235

PROCESS AND DEVICE FOR THE STEAM REFORMING AND STEAM CRACKING OF HYDROCARBONS

LINDE AKTIENGESELLSCHAFT,...

7. A process for heating a material stream in at least one reactor tube of a furnace the process comprising heating the material stream in a first combustion chamber of the furnace, to a first temperature, and subsequently heating the material stream to a second temperature in at least one second combustion chamber of the furnace, wherein the first temperature and the second temperature are separately adjustable, characterized in that the second temperature is homogenous.

US Pat. No. 10,196,792

GROUND FREEZING METHOD

Linde Aktiengesellschaft,...

1. A ground freezing method comprising using a freeze pipe and an inner pipe extending into the freeze pipe, wherein a cooling agent selected from the group consisting of liquid nitrogen and aqueous saline solution is guided into the freeze pipe via the inner pipe, wherein a hollow body comprising a polymer material having a wall thickness less than 6 millimeters with an inner diameter larger than the outer diameter of the freeze pipe is introduced into the ground, and the freeze pipe is introduced into the hollow body, wherein a contact medium having a freeze point of at most 0° C. is introduced into a op between the hollow body and the freeze pipe and the freeze pipe and/or the contact medium are heated by an electric heater before removing the freeze pipe and the freeze pipe is removed from the hollow body after the ground has been frozen.

US Pat. No. 10,160,702

PROCESS FOR THE PURIFICATION OF A CRACKING GAS STREAM IN AN OIL SCRUB COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. A process for purification of a cracking gas stream in an oil scrub column having a shell extending along a longitudinal axis and enclosing an interior of the column, the interior being subdivided into a petroleum spirit section and an oil section arranged below the petroleum spirit section along the longitudinal axis, said process comprising:introducing an amount of a cracking gas stream into the oil section wherein the cracking gas stream passes from bottom to top of the oil section along the longitudinal axis through second mass transfer trays of the oil section which are arranged one above another, and wherein a liquid, hydrocarbon-containing second scrubbing medium flows in said oil section in countercurrent to the cracking gas stream in order to separate out an oil fraction from the cracking gas stream,
said second mass transfer trays each having a plurality of runoff elements extending parallel to and at a distance from one another, wherein each runoff element has first and second runoff surfaces along which a second scrubbing medium runs downward and which converge along the longitudinal axis towards the petroleum spirit section and meet, and in so doing form an edge extending transversely to the longitudinal axis,
passing the cracking gas stream, after traversing the second mass transfer trays of the oil section, into the petroleum spirit section, wherein the cracking gas stream flows along the longitudinal axis from bottom to top of petroleum spirit section through first mass transfer trays of the petroleum spirit section, said first mass transfer trays being arranged one above another and being sieve trays, bubble trays and/or valve trays, and wherein a liquid, hydrocarbon-containing first scrubbing medium flows in said petroleum spirit section in countercurrent to the cracking gas stream in order to remove a petroleum spirit fraction from the cracking gas stream,
withdrawing the cracking gas stream from a top of the petroleum spirit section,
withdrawing the petroleum spirit fraction from the petroleum spirit section,
recycling an amount of the petroleum spirit fraction as the first scrubbing medium into the top of the petroleum spirit section,
wherein the amount of the petroleum spirit fraction recycled into the petroleum spirit section per unit time and the amount of the cracking gas introduced into the oil section per unit time are at a ratio of from 1:16 to 1:10.

US Pat. No. 10,508,772

FLOW APPARATUS AND MONITORING SYSTEM RELATING THERETO

LINDE AKTIENGESELLSCHAFT,...

1. A method of monitoring fluid flow comprising:(a) providing a flow apparatus (10) for a vessel (34) storing fluid under pressure, the flow apparatus (10) having a flow control valve (12) for varying the flow-rate of fluid from the vessel (34), a valve position monitor (21), an internal pressure sensor (48), and a computer (114),
(b) monitoring the position of said flow control valve (12) with said valve position monitor (21),
(c) determining the pressure (P1) within said vessel (34) with said internal pressure sensor (21), and
(d) processing data relating to the position of said flow control valve (12) and the pressure (P1) and comparing said data with reference data to determine the time to exhaustion of the fluid in said vessel (34), wherein said valve position monitor (21) comprises a plurality of discrete sensors (28a-28e) associated with a plurality of open positions (B-L) of said flow control valve (12),
wherein said plurality of discrete sensors (28a-28e) detect the presence or absence of one or more members (26) movable with said flow control valve (12) wherein said one or more members (26) transmit a property or emit a signal that can be detected by the discrete sensors (28a-e).

US Pat. No. 10,344,970

BURNER DEVICE AND METHOD

Linde Aktiengesellschaft,...

1. A burner device (100;200;300;400) having a longitudinal axis (L), comprising:a fuel outlet and a primary oxidant outlet;
an inner circular cylindrical tube (110;210;310;410) arranged to carry a primary oxidant to the primary oxidant outlet which is arranged at the end of said inner tube;
an outer circular cylindrical tube (120;220;320;420) arranged concentrically with and surrounding the inner tube and arranged to carry a fuel to the fuel outlet which is arranged at the end of said outer tube, wherein the inner tube (110;210;310;410) and the outer tube (120:220;320;420) are turnable in relation to each other, and are displaceable in relation to each other along a longitudinal axis (L) of the burner device, and wherein respective longitudinal axes of the inner tube and the outer tube coincide with the longitudinal axis (L) of the burner device;
the primary oxidant outlet arranged with at least one primary oxidant aperture (112,113;212,213,214,215;312;412,413) through an end surface of the inner tube, the primary oxidant aperture arranged to direct said primary oxidant escaping through the primary oxidant aperture at a primary oxidant angle (b) between 45° and 82.5° from the burner device longitudinal axis;
the fuel outlet arranged with at least one fuel aperture (122,123;222,223,224,225;322;422,423) through an end surface of the outer tube, the fuel aperture arranged to direct said fuel escaping through the fuel aperture at a fuel angle (a) which is between 45° and 82.5° from the burner device longitudinal axis, the fuel angle being at least as large as the primary oxidant angle.

US Pat. No. 10,345,040

METHOD FOR CONTROLLING A COUPLED HEAT EXCHANGER SYSTEM AND HEAT EXCHANGER SYSTEM

LINDE AKTIENGESELLSCHAFT,...

1. A method for controlling a coupled heat exchanger system having at least a first heat exchanger block and a second heat exchanger block, wherein each of said first and second heat exchanger blocks has a warm end and a cold end, said method comprising:dividing a first fluid stream, upstream of the heat exchanger system, into a first partial stream and a second partial stream,
conducting the first partial stream through the first heat exchanger block and conducting the second partial stream through the second heat exchanger block,
conducting a second fluid stream, in countercurrent to the first partial stream, through the first heat exchanger block,
conducting a third fluid stream, in countercurrent to the second partial stream, through the second heat exchanger block,
measuring a first intermediate temperature at the second heat exchanger block, between the warm end and the cold end of said second heat exchanger block, and
wherein the part of the first fluid stream that forms said first partial stream and the part of the first fluid stream that forms said second partial stream are determined on the basis of the measured first intermediate temperature,
said method further comprising:
controlling the operation of the heat exchanger blocks by reducing the loading of the heat exchanger blocks caused by load changes by reducing the size of fluctuations of the first intermediate temperature,
wherein in addition to said second partial stream, another fluid stream flows through the second heat exchanger block in the direction of the second partial stream, and at least 50 mol % of the total amount of fluid that flows through the second heat exchanger block in the direction of the second partial stream is formed from said first fluid stream.

US Pat. No. 10,329,214

METHOD AND APPARATUS FOR PRODUCING HYDROCARBONS

Linde Aktiengesellschaft,...

1. A method for producing hydrocarbons by oxidative coupling of methane comprising:contacting a methane-rich feed stream and an oxygen-rich feed stream in a reaction unit configured for oxidative coupling of methane to produce a product stream comprising hydrocarbons and unreacted methane;
cryogenically separating the product stream in at least one separation unit using at least one liquid, methane-rich stream to form a recycle stream comprising unreacted methane and at least a portion of methane contained in the at least one liquid, methane-rich stream; and
feeding the recycle stream to the reaction unit, wherein the methane-rich feed stream consists of the recycle stream and the methane-rich feed stream is the only methane feed to the reaction unit;
wherein the at least one liquid, methane-rich stream is produced using a pressurised, methane-containing gas mixture that is provided separately from the product stream and wherein the liquid, methane-rich stream is used in an amount that is greater than or equal to the amount of methane which is converted in the reaction unit and which is lost by separation losses.

US Pat. No. 10,247,472

SUPPORT FOR A PACKING COLUMN

LINDE AKTIENGESELLSCHAFT,...

1. A support for a packing column, said support comprising: a supporting profile having:a web section running in the vertical direction which has a first lower end and a second upper end, the web section having a greater vertical extent than horizontal extent,
a foot section of a first width, the foot section adjoining the first lower end of the web section,
a head section, which adjoins the second upper end of the web section, the head section having an upper side of a second width, and the head section having an underside of a third width,wherein the head section has a trapezoidal cross section, and wherein the second width is less than the third width.

US Pat. No. 10,245,669

DEVICE AND METHOD FOR AUTOGENOUS PROCESSES

Linde Aktiengesellschaft,...

1. An enveloping gas device for transporting at least one enveloping gas, wherein the enveloping gas device is allocated to a burner head or at least one nozzle of a device provided for working or processing at least one component or workpiece by autogenous processes selected from the group consisting of autogenous flame cutting, autogenous flame brazing, and autogenous flame gouging, characterized in that at least one burner flame issuing from the burner head or nozzle and directed towards the component or workpiece is completely enclosed by the enveloping gas which is not consumed by the at last one burner flame, and concentrating the flame on the at least one component or workpiece and the concentration of contaminants contained in the waste gas from the device is reduced by the enveloping gas, wherein an end area of the enveloping gas device facing the component or workpiece protrudes slightly beyond end area of the burner head or the nozzle that faces the component or workpiece.

US Pat. No. 10,209,004

METHOD FOR OBTAINING AN AIR PRODUCT IN AN AIR SEPARATION PLANT AND AIR SEPARATION PLANT

LINDE AKTIENGESELLSCHAFT,...

1. A method for obtaining an air product using an air separation plant having a distillation column system and a tank system with a first tank and a second tank, said method comprising:withdrawing a cryogenic liquid from the distillation column system, storing the cryogenic liquid at least in part in the tank system, and using the cryogenic liquid at least in part as the air product,
wherein the cryogenic liquid is supplied to the first tank and not to the second tank during a first period, and is supplied to the second tank and not to the first tank during a second period, and wherein the cryogenic liquid is withdrawn from the second tank and not from the first tank during the first period, and is withdrawn from the first tank and not from the second tank during the second period,
wherein the tank system comprises an additional third tank, and the cryogenic liquid which is withdrawn from the second tank during the first period, and withdrawn from the first tank during the second period, is transferred, at least partially, unheated into the third tank, and
wherein the air product is provided at least in part by using at least part of the cryogenic liquid transferred, unheated, into the third tank, and
cryogenic liquid from the third tank used for providing the air product is withdrawn from the third tank in the liquid state, vaporized or converted from the liquid to the supercritical state, and discharged from the air separation plant, and/or cryogenic liquid from the third tank used for providing the air product is withdrawn from the third tank in the liquid state and stored in the liquid state in a fourth tank.

US Pat. No. 10,201,765

COLUMN WITH ANGULAR PROFILES

LINDE AKTIENGESELLSCHAFT,...

1. A column having:a shell extending along a longitudinal axis and enclosing an interior of the column,
at least one mass transfer tray extending along a cross section of the column which is transverse to the longitudinal axis of the column, and
at least one liquid distributor for feeding the at least one mass transfer tray with a liquid phase,
wherein said at least one mass transfer tray has a plurality of runoff elements extending parallel to and at a distance from one another, wherein each of said runoff elements extends along the column cross section, and each of said runoff elements has first and second runoff surfaces that extend along the cross section of the column, and said first and second runoff surfaces converging along the longitudinal axis in the direction of the liquid distributor to form an edge extending along the cross section of the column,
wherein said liquid distributor has a plurality of cutouts through which the liquid phase can be applied to the edges of the runoff elements, each of said cutouts being arranged perpendicularly above an edge of an assigned runoff element, whereby liquid phase applied to each runoff element flows off from the runoff element via the runoff surfaces at both sides of the edge of the runoff element, and
wherein said liquid distributor has a plurality of final distributor channels, each of said final distributor channels extending along said cross section of the column and also extending transversely to the runoff elements,
each of said final distributor channels
(a) having a base, which extends along the cross section of the column, and two side walls extending from said base, where each of said side walls has an upper rim, and where the cutouts are designed in the form of vacancies, at each of the upper rims of said side walls, or
(b) is in the shape of a tube having a peripheral wall, and where said cutouts are formed as passage openings in the peripheral walls.

US Pat. No. 10,488,106

METHOD AND APPARATUS FOR PRODUCING COMPRESSED NITROGEN AND LIQUID NITROGEN BY CRYOGENIC SEPARATION OF AIR

LINDE AKTIENGESELLSCHAFT,...

1. A method for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air in a distillation column system having a high-pressure column, a low-pressure column, a main condenser which condenser evaporator, and a low-pressure column top condenser which is a condenser evaporator, said process comprising:compressing a feed air stream in a main air compressor, purifying the compressed feed air stream, cooling the compressed and purified feed air stream in a main heat exchanger, and introducing the cooled feed air stream into the high-pressure column
withdrawing a first part of a gaseous top nitrogen from the low-pressure column as a first nitrogen stream, heating the first nitrogen stream in the main heat exchanger, and removing the heated first nitrogen stream from the main heat exchanger as a first compressed nitrogen product,
at least partially condensing a second part of the gaseous top nitrogen from the low-pressure column in a condensing space of the low-pressure-column top condenser,
at least partially evaporating a liquid coolant stream in an evaporating space of the low-pressure-column top condenser,
withdrawing vapor from the evaporating space of the low-pressure-column top condenser as a residual gas stream, and heating the residual gas stream in the main heat exchanger to a first intermediate temperature,
introducing the residual gas stream at the first intermediate temperature into a first expansion machine and expanding the residual gas stream in a work-performing manner, and
heating the expanded residual gas stream in the main heat exchanger,
withdrawing a second compressed nitrogen stream from the top of the high-pressure column, and heating the second compressed nitrogen stream to a second intermediate temperature in the main heat exchanger,
introducing the second compressed nitrogen stream at the second intermediate temperature into a second expansion machine where the second compressed nitrogen stream is expanded in a work-performing manner,
heating the expanded second compressed nitrogen stream in the main heat exchanger, and withdrawing the heated second compressed nitrogen stream as a second compressed nitrogen product, and
withdrawing a part of nitrogen condensed in the low-pressure-column top condenser as a liquid nitrogen product.

US Pat. No. 10,444,109

METHODS FOR DETECTING LEAKS FOR PHARMACEUTICAL PACKAGES SUCH AS PARENTERAL PACKAGES AND BULK PHARMACEUTICAL BAGS

Linde Aktiengesellschaft,...

1. A method for leak detection comprising the steps:a) vaporizing liquid nitrogen to gaseous nitrogen wherein either the liquid nitrogen or the gaseous nitrogen is sterilized;
b) mixing the gaseous nitrogen with multifunctional particles;
c) feeding the mixture of gaseous nitrogen and multifunctional particles to a chamber wherein a packaged sealed product is present in the chamber; and
d) transmitting a signal when the multifunctional particles contact a component leaking from the packaged sealed product;
wherein the multifunctional particles are selected from the group consisting of luminescent nano-particles, electro-conductive polymer based nano-particles and color sensitive polymer nano-particles.

US Pat. No. 10,344,226

PROCESS FOR PREPARING OLEFIN-CONTAINING PRODUCTS BY THERMAL STEAM CRACKING

LINDE AKTIENGESELLSCHAFT,...

1. A process for preparing olefinic products by thermal steam cracking comprising:thermally steam cracking a first furnace feed comprising a heavy fresh feed containing predominantly hydrocarbons having boiling points above 180° C. in at least one first cracking furnace under first cracking conditions to convert at least part of the first furnace feed into a first product stream, wherein the first product stream at the outlet of the at least one first cracking furnace has a propylene-to-ethylene ratio of from 0.85 to 1.6 kg/kg;
thermally steam cracking a second furnace feed composed of hydrocarbons in at least one second cracking furnace under second cracking conditions to convert at least part of the second furnace feed into a second product stream, wherein the first cracking conditions in said at least one first cracking furnace are different than the second cracking conditions in said at least one second cracking furnace;
isolating a first pyrolysis oil comprising hydrocarbons from the first product stream to produce a first product stream without said first pyrolysis oil and isolating a second pyrolysis oil from the second product stream to produce a second product stream without said second pyrolysis oil;
subjecting at least part of the first pyrolysis oil to a chemical treatment to produce an at least partly chemically treated first pyrolysis oil, wherein said chemical treatment comprises increasing the hydrogen-to-carbon ratio of at least part of the hydrocarbons of the first pyrolysis oil;
recirculating at least part of the at least partly chemically treated first pyrolysis oil as furnace feed to the at least one first cracking furnace;
combining the first product stream without said first pyrolysis oil with the second product stream without said second pyrolysis oil to form a joint product stream; and
further treating said joint product stream to produce at least one olefinic product, wherein said further treating comprises separating said olefinic product from said joint product stream.

US Pat. No. 10,330,383

METHOD AND DEVICE FOR DISCHARGING COMPONENTS THAT ARE LESS VOLATILE THAN OXYGEN FROM AN AIR SEPARATION PLANT

Linde Aktiengesellschaft,...

1. A method for discharging components that are less volatile than oxygen from an air separation plant that contains a main heat exchanger, a side condenser and a distillation column system for nitrogen-oxygen separation, wherein the side condenser is constructed as a condenser-evaporator and is arranged in a vessel and the distillation column system for nitrogen-oxygen separation has at least one high-pressure column and a low-pressure column, and wherein, in the method a first feed air stream is cooled in the main heat exchanger and is introduced into the high-pressure column, a second feed air stream is cooled in the main heat exchanger and is at least in part liquefied in the side condenser, a first oxygen fraction is withdrawn in a liquid state from the low-pressure column and introduced into the vessel of the side condenser, a sump liquid of the vessel in the side condenser is at least in part vaporized, a second oxygen fraction is withdrawn in a gaseous state from a head of the vessel of the side condenser wherein the second oxygen fraction has an oxygen purity which is higher than the oxygen content of the first oxygen fraction, the second oxygen fraction is warmed in the main heat exchanger, a third oxygen fraction is taken off at least intermittently as a purge stream from the bottom of the vessel in a liquid state and removed from the distillation column system for nitrogen-oxygen separation and the purge stream is discharged into the surroundings, wherein the purge stream comprises oxygen, krypton and xenon, characterized in that the vessel, above the side condenser has a mass transfer section which corresponds to more than one theoretical plate and fewer than 10 theoretical plates and the oxygen content of the third oxygen fraction is less than the oxygen purity of the first oxygen fraction.

US Pat. No. 10,309,710

CONFIGURABLE SPIRAL FREEZER

Linde Aktiengesellschaft,...

1. A reconfigurable freezer, comprising:a housing having an internal space therein, and first and second openings each in communication with said internal space;
an infeed assembly and an ouffeed assembly, the infeed assembly constructed to be removably mounted to the housing at one of at the first and second openings for being in communication with said internal space, and the ouffeed assembly constructed to be removably mounted to another of the first and second openings for being in communication with said internal space, wherein the infeed and ouffeed assemblies are interchangeable at the first and second openings;
a conveyor belt transiting the internal space from the infeed assembly to the outfeed assembly; and
a drum disposed at the internal space for supporting movement of the conveyor belt about the drum between the infeed and outfeed assemblies;
wherein the outfeed assembly comprises:
an outfeed plenum through which the conveyor belt exits the internal space of the housing,
a belt drive apparatus operatively associated with the outfeed plenum and in operable contact with the conveyor belt, and
a drive motor operatively connected to and driving the belt drive apparatus and moving the conveyor belt between the infeed and outfeed assemblies and around the drum.

US Pat. No. 10,300,428

METHOD AND DEVICE FOR SOUR GAS SCRUBBING

Linde Aktiengesellschaft,...

5. A gas scrubbing apparatus comprising a scrubbing device which has at least one first scrubbing section connected in series to a second scrubbing section through which a scrubbing medium can be conveyed countercurrent to a gas mixture, where materials of a first type and of a second type can be separated off from the gas mixture so as to produce a scrubbing medium stream loaded with materials of the second type and a scrubbing medium stream loaded with materials of the first type and of the second type, a regeneration device which is connected to the first scrubbing section to partially regenerate a scrubbing medium loaded with materials of the first type and of the second type from the first scrubbing section to produce a partially regenerated semilean scrubbing medium stream which contains materials of the first type and of the second type and has a lower content of materials of the first type than the loaded scrubbing medium stream brought from the first scrubbing section, comprising the regeneration device is connected to the first scrubbing section so that at least a part of the semilean scrubbing medium can be fed directly to the first scrubbing section, wherein the regeneration device is configured as an enrichment column which in its upper region is a scrubbing column and in its lower region is a stripping column and in its middle region has an inlet via which the loaded scrubbing medium brought from the first scrubbing section can be depressurized and introduced into the stripping column.

US Pat. No. 10,260,985

METHODS FOR DETECTING LEAKS IN LIQUID PIPELINES

Linde Aktiengesellschaft,...

1. A method for detecting a leak in a liquid pipeline comprising feeding gas enabled photo sensitive particles into the liquid pipeline wherein the gas enabled photo sensitive particles are particles that surround an inert gas and the particles in turn are surrounded by a surfactant or liquid active system.

US Pat. No. 10,566,886

FEMALE CONTACT ELEMENT FOR A SLIP RING MOTOR AND SLIP RING MOTOR

Linde Aktiengesellschaft,...

1. A slip ring motor with a power output of >1 MW, comprising a female contact element, the female contact element includingtwo contact portions defining a slot therebetween, and
a retraining unit restraining movement of the two contact portions, wherein the restraining unit is made of steel,
wherein a plurality of projections project from free ends of the two contact portions,
wherein the restraining unit engages the plurality of projections,
wherein the female contact element is configured for engagement with a male contact element thereby making an electrical connection between the female contact element and the male contact element when providing the power output of >1 MW, the female contact element comprising a Cu—Be alloy,
wherein a corresponding contact portion of the male contact element is insertable into the slot,
wherein the two contact portions of the female contact element spread apart elastically when the corresponding contact portion of the male contact element is inserted into the slot thereby making the electrical connection, and
wherein the two contact portions comprise the Cu—Be alloy.

US Pat. No. 10,508,244

METHOD FOR REMOVING NITROGEN FROM A HYDROCARBON-RICH FRACTION

LINDE AKTIENGESELLSCHAFT,...

1. A method of obtaining a liquefied hydrocarbon-rich fraction having a nitrogen content of ?1 mol %, said method comprising:liquefying and subcooling a hydrocarbon-rich feed fraction with a refrigeration circuit,
expanding the liquefied and subcooled hydrocarbon-rich feed fraction and feeding the expanded hydrocarbon-rich feed fraction into a nitrogen stripping column,
withdrawing said liquefied hydrocarbon-rich fraction having a nitrogen content of ?1 mol % from the bottom of said nitrogen stripping column,
withdrawing a nitrogen-enriched fraction from the top of said nitrogen stripping column, compressing said nitrogen-enriched fraction, liquefying and subcooling said nitrogen-enriched fraction with the refrigeration circuit, expanding said nitrogen-enriched fraction and feeding said nitrogen-enriched fraction into a high-pressure nitrogen column,
wherein a substream of the nitrogen-enriched fraction which has been cooled with the refrigeration circuit is fed to said high-pressure nitrogen column as a reboil stream, and
withdrawing a nitrogen-depleted fraction from the bottom of said high-pressure nitrogen column and feeding said nitrogen-depleted fraction to the stripping column,
wherein the stripping column and the nitrogen-depleted fraction are thermally coupled via a heat exchanger which serves as reboiler for the nitrogen stripping column and as tops condenser for the high-pressure nitrogen column, and
g) wherein a reflux collector is arranged between the stripping column and the nitrogen-depleted fraction, and a gaseous and/or liquid high-purity nitrogen stream is withdrawn from said reflux collector.

US Pat. No. 10,486,271

WELDING APPARATUS

LINDE AKTIENGESELLSCHAFT,...

1. A welding apparatus comprising a welding tool and a weld cooling apparatus for the forced cooling of a heated weld zone in a workpiece being welded by the welding tool, the welding tool having a welding nozzle with a longitudinal axis, and the weld cooling apparatus comprising: a source of CO2 as coolant; a plurality of coolant delivery conduits arranged to move with the welding tool wherein each of the coolant delivery conduits comprising a first tube portion having a longitudinal axis and extending alongside the welding tool and a second tube portion having a longitudinal axis and extending, in use, downwardly and away from the welding tool; and a plurality of coolant nozzles arranged to direct converging flows of coolant at the heated weld zone at a distal end of the second tube portion having a longitudinal axis and an outlet for ejecting coolant at the heated weld zone; wherein the plurality of coolant delivery conduits are each connected to one of the plurality of coolant nozzles, wherein the second tube portion is arranged such that the coolant nozzle outlet is spaced, in use, from the workpiece so as to direct a jet of coolant behind the welding tool onto the weld zone, and at least 10 mm from the longitudinal axis of the first tube portion.

US Pat. No. 10,443,947

HEAT EXCHANGER WITH COLLECTING CHANNEL FOR DISCHARGING A LIQUID PHASE

LINDE AKTIENGESELLSCHAFT,...

1. A heat exchanger for the indirect exchange of heat between a first medium and a second medium, said heat exchanger comprising:a casing having a longitudinal axis and defining an encased area for receiving a liquid phase of the first medium, wherein said longitudinal axis extends in a horizontal direction,
a plate heat exchanger having first heat transfer passages for receiving the first medium, and second heat transfer passages for receiving the second medium, said first and second heat exchange passages permitting heat to be indirectly be exchanged between the first and second mediums, wherein the plate heat exchanger is arranged within the encased area such that the plate heat exchanger can be surrounded with a liquid phase of the first medium located in the encased area,
a collecting channel arranged in the encased area for collecting the liquid phase of the first medium located in the encased area before it can be discharged from the casing, and
an outlet connecting pipe connected to the casing and in direct fluid communication with the collecting channel for discharging the collected liquid phase from the casing,
wherein the collecting channel comprises a wall fixed to the casing at a position underneath the plate heat exchanger such that the wall and the casing together define an interior area of the collecting channel, and said wall having a longitudinal axis which extends substantially parallel to said longitudinal axis of said casing, and
wherein said wall comprises a top wall part arranged between the plate heat exchanger and the casing, and a side wall part extending from the perimeter of the top wall part to directly contact the casing such that the side wall part circumscribes the interior area between the top wall part and the casing.

US Pat. No. 10,401,083

PLANT FOR PRODUCING OXYGEN BY CRYOGENIC AIR SEPARATION

LINDE AKTIENGESELLSCHAFT,...

14. A plant for producing oxygen by low-temperature separation of air comprising:a high-pressure column and a low-pressure column,
a main condenser which is a condenser evaporator having a liquefaction space and an evaporation space, wherein the liquefaction space of the main condenser is in fluid communication with the top of the high-pressure column and the evaporation space of the main condenser is in fluid communication with the low-pressure column,
an argon discharge column which is in fluid communication with an intermediate point on the low-pressure column,
an argon discharge column tops condenser which is a condenser-evaporator having a liquefaction space and an evaporation space, wherein the liquefaction space of the argon discharge column tops condenser is in fluid communication with the top of the argon discharge column,
an auxiliary column whose bottom region includes an inlet for introduction of gas from the evaporation space of the argon discharge column tops condenser, and via
a crude oxygen conduit for introduction of liquid crude oxygen from the bottom of the high-pressure column into the auxiliary column,
a reflux liquid conduit for introducing a liquid stream from the high-pressure column or the main condenser as reflux into the top of the auxiliary column, wherein the liquid stream has a nitrogen content which is at least equal to that of air, and
the crude oxygen conduit is configured for introducing crude oxygen into the auxiliary column at a first intermediate point,
wherein the auxiliary column is configured to operate at a pressure at the top of the auxiliary column that is at least 50 mbar higher than the pressure at the top of the low-pressure column.

US Pat. No. 10,246,394

SEPARATION PROCESSING METHOD FOR A PRODUCT STREAM OF A DIMETHYL ETHER REACTOR

1. Method for the processing, by separation technology, of a product stream (g) containing at least dimethyl ether, methanol, water, carbon dioxide, carbon monoxide and hydrogen, from a reactor (4) used for the synthesis of dimethyl ether from synthesis gas (e), comprisingfeeding the product stream (g), in at least partially gaseous form, into an absorption column (6) operated with a liquid reflux, removing a gaseous top stream (m) from the absorption column (6) at the top and removing a liquid sump stream (p) at the bottom,
feeding the sump stream (p) at least partially into a first distillation column (5), withdrawing a transfer stream (q) containing dimethyl ether and a stream (r) predominantly containing methanol and/or water from the first distillation column (5),
cooling the top stream (m) at least partially initially to a first temperature level and subsequently further cooling to one or more further temperature levels, forming a first condensate stream (n) after the cooling to the first temperature level and forming one or more further condensate streams (s, t) after the further cooling to the further temperature level or levels, and
using the first condensate stream (n) partially to form the liquid reflux and feeding the further condensate stream or streams (s, t) at least partially into a further distillation column (9), from which removing a liquid stream (z) predominantly containing dimethyl ether and poor in or free from carbon dioxide at the bottom.

US Pat. No. 10,213,717

DEVICE FOR INTRODUCING A FLUID MEDIUM INTO A CONTAINER

Linde Aktiengesellschaft,...

1. A device for introducing a fluid medium into a container, comprising:a container for receiving the medium,
a pipeline for introducing the medium into an interior of the container, the pipeline having a pipeline portion, which is arranged in the interior of the container, and having a hollow-cylindrical casing, which extends along a cylinder axis of the pipeline portion,
the casing having on a downwardly facing underside an opening for introducing the fluid medium into the interior of the container,
the opening having two first edge portions that extend along the cylinder axis and two arcuate second edge portions that lie opposite one another, the arcuate second edge portions connecting the two first edge portions to one another,
a plate-shaped baffle element that is fixed to the casing being arranged underneath the opening, so that fluid medium emerging from the opening strikes the baffle element,characterizedin that at least one plate-shaped first directing element for guiding the fluid medium is provided, the at least one first directing element extending perpendicularly to the cylinder axis and proceeding from an upper side of the baffle element that is facing the opening and projecting through that opening into the interior of the pipeline portion.

US Pat. No. 10,139,049

SUBFRAME FOR A VALVE BODY

LINDE AKTIENGESELLSCHAFT,...

1. A cylinder valve assembly having an outer casing and a sub-frame for a valve body having two or more location surfaces, said outer casing comprising a first portion and a second portion, said sub-frame comprising a first and a second portion having mutually confronting contact surfaces, sides and front and back surfaces and mutually confronting engagement surfaces wherein said mutually confronting contact surfaces are shaped to engage with each other upon placement together of the first and second portions of the sub-frame and said mutually confronting engagement surfaces are shaped to engage with one or other of said one or more location surfaces on the valve body when positioned therearound, the first portion of the outer casing having one or more lower first location features and one or more upper first location features thereon, and the second portion of the outer casing having one or more lower first location features and one or more upper first location features thereon,wherein said sub-frame further includes one or more lower second location features and one or more upper second location features for engagement with said one or more first location features of the first portion of the outer casing when said first and second portions of the outer casing are placed around said sub-frame; and
the lower first location features of the first portion and the lower first location features of the second portion include lower surfaces facing downwardly and side surfaces facing upwardly; and
the upper first location features of the first portion and the upper first location features of the second portion include upper surfaces facing upwardly and outer surfaces facing outwardly, and between the upper surfaces and the outer surfaces defines a generally rectangular shaped guide onto which the first and second portions of the outer casing slide onto when being positioned relative thereto.

US Pat. No. 10,655,293

DEVICE AND METHOD FOR GROUND FREEZING

LINDE AKTIENGESELLSCHAFT,...

1. A device for ground freezing, comprisinga freezing lance which extends along a longitudinal axis and is designed to be introduced into the earth for the purpose of freezing the ground, wherein the freezing lance includes a pipe mantle that encloses an interior space having a first section for holding a liquid refrigerant, wherein the ground surrounding the freezing lance can be cooled by the refrigerant present in the first section,
a line protruding into the interior space for supplying the liquid refrigerant into the first section of the interior space,
wherein the device has a first end section, on which a first opening is provided for removing an exhaust gas, formed by evaporation of the refrigerant, from the interior space, and
wherein the interior space has a second section adjacent to the first section along the longitudinal axis to hold the exhaust gas, so that the exhaust gas can come into contact with the pipe mantle in the second section, wherein a first device for temperature measurement of the exhaust gas is positioned at a transition area between the first section and the second section and said first device for temperature measurement is used to control or regulate inflow of liquid refrigerant into the interior space.

US Pat. No. 10,570,332

Y-GRADE NGL FLUIDS FOR ENHANCED OIL RECOVERY

Linde Aktiengesellschaft,...

1. A method for enhanced or improved oil recovery, comprising:injecting a Y-Grade NGL enhanced oil recovery fluid through an injection well into a hydrocarbon bearing reservoir to mobilize and displace hydrocarbons, wherein the Y-Grade NGL enhanced oil recovery fluid comprises an unfractionated hydrocarbon mixture that is a byproduct of a condensed and de-methanized hydrocarbon stream that is miscible with hydrocarbons in the hydrocarbon bearing reservoir, wherein the unfractionated hydrocarbon mixture comprises ethane, propane, and butane in an amount of at least 75% by volume, and wherein the unfractionated hydrocarbon mixture comprises pentane plus in an amount less than 30% by volume, wherein the unfractionated hydrocarbon mixture is condensed out of the hydrocarbon stream at a temperature at or below 0 degrees Fahrenheit;
injecting a mobility control fluid through the injection well into the hydrocarbon bearing formation to inhibit mobility of the Y-Grade NGL enhanced oil recovery fluid from the injection well to a production well; and
producing hydrocarbons through the production well.

US Pat. No. 10,570,338

METHOD AND SYSTEM FOR PROCESSING A MIXTURE OF SUBSTANCES CONTAINING HYDROCARBONS AND SULFUR COMPOUNDS BY SEPARATION TECHNOLOGY

LINDE AKTIENGESELLSCHAFT,...

1. A method (100) for processing a mixture of substances which contains predominantly or solely hydrocarbons having from M to N carbon atoms, which include sulfur-containing hydrocarbons,a first feed being formed using a fluid of the mixture of substances and being subjected to a first separation in which a first fraction is formed which contains predominantly or solely hydrocarbons having from X to Y carbon atoms and at least a portion of the sulfur-containing hydrocarbons contained in the first feed, and
a second feed being formed using a fluid of the first fraction and being subjected to a desulfurisation, in which the sulfur-containing hydrocarbons contained in the second feed are converted predominantly or completely and hydrocarbons having more than Y carbon atoms are formed as secondary products, with the result that a product mixture of the desulfurisation contains predominantly or solely hydrocarbons having from X to Y carbon atoms and the secondary products, where
M is five or six, X is five or six when M is five or is six when M is six, Y is six, seven or eight, and N is greater than Y,characterised in thata third feed is formed using a fluid of the product mixture and is subjected to a second separation in a two-part distillation column (30) which comprises two structurally separated column parts (31, 32) and in which a second and a third fraction are formed, the second fraction containing at least the predominant portion of the secondary products contained in the third feed, and
fluid of the third fraction is separated further in the two-part distillation column in a third separation, and fluid of the second fraction is used in the formation of the first feed by being recycled into the method (100) upstream of the first separation.

US Pat. No. 10,549,062

DEVICE FOR THE TREATMENT OF, TREATMENT OF COMPLICATIONS ARISING FROM, AND/OR PREVENTION OF RESPIRATORY DISORDERS CAUSED BY BACTERIAL, VIRAL, PROTOZOAL, FUNGAL AND/OR MICROBIAL INFECTIONS, PREFERABLY FOR THE TREATMENT OF COMPLICATIONS ARISING FROM CYSTIC F

LINDE AKTIENGESELLSCHAFT,...

1. A method for the treatment of respiratory disorders, the treatment of complications arising from respiratory disorders, or the treatment of secondary respiratory disorders caused by bacterial, viral, protozoal, fungal and/or microbial infections in a mammal; said method comprising:providing a device for the treatment of respiratory disorders, the treatment of complications arising from respiratory disorders, or the treatment of secondary respiratory disorders, said device comprising:
a positive airway pressure device for providing a breathing gas under a positive pressure to a patient interface;
a source of nitric oxide for providing gaseous nitric oxide;
a gas injector for injecting nitric oxide provided by the source of nitric oxide into the breathing gas provided by the positive airway pressure device under pressure;
a flow rate sensor for sensing the flow rate of the breathing gas provided to the patient interface under positive airway pressure; and
a controller programmed for controlling the gas injector for injecting the nitric oxide into the breathing gas provided by the positive airway pressure device when a flow rate detected by the flow rate sensor exceeds a predetermined threshold flow rate wherein the controller is programmed to control the gas injector to inject the nitric oxide to achieve a concentration of nitric oxide in the breathing gas of between 40 ppm and 1000 ppm, and wherein the controller is programmed to control the positive airway pressure device and the gas injector to inject the nitric oxide into the breathing gas during an interval having a duration of between 1 minute to 60 minutes, with said interval provided at a frequency greater than or equal to every second day and lesser than or equal to 5 intervals a day; and
producing an inhalable medicament comprising gaseous nitric oxide with the device for the treatment of complications arising from, and/or preventing respiratory disorders; and
providing the inhalable medicament to an airway of the mammal under positive airway pressure.

US Pat. No. 10,544,357

Y-GRADE NGL STIMULATION FLUIDS

Linde Aktiengesellschaft,...

1. A stimulation fluid, comprising:a proppant; and
an unfractionated hydrocarbon liquid mixture comprising:
unfractionated ethane;
unfractionated propane;
unfractionated butane;
unfractionated isobutane; and
unfractionated pentane plus;
wherein the unfractionated hydrocarbon liquid mixture is a byproduct of a de-methanized hydrocarbon stream, and wherein the unfractionated hydrocarbon liquid mixture is in its natural state and has not been fractionated.

US Pat. No. 10,464,810

METHOD AND SYSTEM FOR OBTAINING HYDROGEN FROM A FEED MIXTURE WHICH CONTAINS HYDROGEN AND HYDROCARBONS

LINDE AKTIENGESELLSCHAFT,...

13. Apparatus for obtaining hydrogen from a feed mixture containing hydrogen, methane and hydrocarbons with two carbon atoms and low in or free from other hydrocarbons, with means that are configured:to cool fluid of the feed mixture from a first temperature level to a second temperature level at a first pressure level, so that one or more condensates are precipitated out of the fluid of the feed mixture, leaving a residual gas,
to further cool fluid of the residual gas to a third temperature level and subject it to counterflow absorption, thereby obtaining a top gas rich in hydrogen and methane and a sump liquid,
to heat fluid of the top gas and to subject it to pressure swing adsorption (9) at the first pressure level, thereby forming a product stream which is rich in hydrogen and depleted in or free from methane, and
to expand fluid of the condensate or condensates and/or of the sump liquid from the first pressure level to a second pressure level and to feed it into a low pressure demethanizer at the second pressure level,characterised bymeans which are configured to carry out the counterflow absorption at the first pressure level using fluid which is taken from the low pressure demethanizer at the second pressure level, compressed in gaseous form to the first pressure level and cooled to the third temperature level.

US Pat. No. 10,466,134

METHODS FOR DETECTING LEAKS IN PIPELINES

LINDE AKTIENGESELLSCHAFT,...

1. A method for detecting leaks in a pipeline comprising adding leak sensitive particles comprising a silica core surrounded by luminescent molecules wherein the luminescent molecules are selected from the group consisting of silver salts and Ru(bpy)3Cl2 and the leak sensitive particles will change signals when a leak is detected in the pipeline wherein the signal change is detected by an optical sensor and optical sensors are mounted on the pipeline at recurring intervals to the pipeline.

US Pat. No. 10,443,931

METHOD AND DEVICE FOR THE CRYOGENIC DECOMPOSITION OF AIR

LINDE AKTIENGESELLSCHAFT,...

1. A method for cryogenic separation of air in a distillation column system for nitrogen/oxygen separation that comprises a first high-pressure column (23), a low-pressure column (25, 26), a second high-pressure column (24), a high-pressure column overhead condenser (27), a low-pressure column bottoms evaporator (28), and an auxiliary condenser (29; 228), said method comprising:cooling a first feed air stream in a main heat exchanger (20, 21),
introducing the cooled first feed air stream (22) at a first pressure into the first high-pressure column (23),
condensing gaseous overhead nitrogen (44, 45) from the first high-pressure column (23) in the high-pressure column overhead condenser (27),
introducing at least one portion (47) of the overhead nitrogen (46) condensed in the high-pressure column overhead condenser (27) into the first high-pressure column (23) as reflux liquid,
evaporating one portion of bottoms liquid (66) of the low-pressure column (25, 26) in the low-pressure column bottoms evaporator (28) by indirect heat exchange with a condensing heating fluid (58),
removing an unevaporated portion (67) of the bottoms liquid (66) from the low-pressure column (25, 26), and at least partly evaporating said unevaporated portion (67) of the bottoms liquid (66) of the low-pressure column (25, 26) in the auxiliary condenser (29; 228), wherein said the auxiliary condenser (29; 228) is separate from said low-pressure column (25, 26), and
removing as a gaseous oxygen product (69) at least one portion of the liquid (68) evaporated in the auxiliary condenser (29; 228)
cooling a second feed air stream in the main heat exchanger (20, 21),
introducing the cooled second feed air stream (35) into the second high-pressure column (24) at a second pressure, which is higher than the first pressure, and
using at least one portion of overhead gas (58) from the second high-pressure column (24) as said condensing heating fluid in the low-pressure column bottoms evaporator (28),
wherein said unevaporated portion (67) of the bottoms liquid (66) of the low-pressure column (25, 26) is at least partly evaporated in the auxiliary condenser (29; 228) by indirect heat exchange with a third air feed stream (36), and said third air feed stream is at least partially condensed by said indirect heat exchange with evaporating bottoms liquid (66) of the low-pressure column (25, 26).

US Pat. No. 10,592,621

METHOD FOR DETERMINING A STRENGTH OF A TUBE BUNDLE HEAT EXCHANGER, AND PRODUCTION METHOD

LINDE AKTIENGESELLSCHAFT,...

1. Method for determining a stiffness of a tube bundle heat exchanger, which comprises a core tube and coil tubes coiled around the core tube to form a tube bundle, wherein the coil tubes are coiled in a plurality of coil layers and at a respective layer coiling angle around the core tube, comprising the steps of:determining a geometric strength parameter of a respective coil layer, wherein the geometric strength parameter comprises an area ratio of a coil-tube cross-sectional area to a cell cross-sectional area, wherein the cell cross-sectional area results from the axial spacing of the coil tubes and an outer diameter of the coil tubes;
correcting the area ratio by a correction factor for the purpose of taking into consideration the orientation of the coil tubes of the respective coil layer in relation to the force of gravity acting on the coil tubes; and
determining the stiffness of the respective coil layer in dependence on the corrected area ratio and a modulus of elasticity of the coil-tube material.

US Pat. No. 10,570,715

UNCONVENTIONAL RESERVOIR ENHANCED OR IMPROVED OIL RECOVERY

Linde Aktiengesellschaft,...

1. A method for enhanced or improved hydrocarbon recovery, comprising:injecting an enhanced or improved recovery fluid through an injection well into an unconventional resource reservoir at a pressure below the unconventional resource reservoir fracture pressure to mobilize and displace hydrocarbons, wherein the injection well of the unconventional resource reservoir has been previously hydraulically fractured and contains one or more sections of hydraulic fractures, wherein the enhanced or improved recovery fluid comprises an unfractionated hydrocarbon liquid mixture that is a byproduct of a condensed and de-methanized hydrocarbon stream that is miscible with hydrocarbons in the unconventional resource reservoir, wherein the unfractionated hydrocarbon mixture is condensed out of the hydrocarbon stream at a temperature at or below 0 degrees Fahrenheit, wherein the unfractionated hydrocarbon mixture comprises ethane, propane, and butane in an amount of at least 75% by volume, and wherein the unfractionated hydrocarbon mixture comprises pentane plus in an amount less than 25% by volume;
alternating slugs of the enhanced or improved recovery fluid into the unconventional resource reservoir with slugs of a gas;
injecting a final displacement fluid into the unconventional resource reservoir at the conclusion of the injection of the enhanced or improved recovery fluid and the gas at a pressure below the unconventional resource reservoir fracture pressure to mobilize the enhanced or improved recovery fluid and hydrocarbons in the unconventional resource reservoir; and
producing hydrocarbons from the unconventional resource reservoir via the injection well or a production well offset from the injection well, wherein the injection well comprises an array of vertical or horizontal injection wells, and wherein the production well comprises an array of vertical or horizontal production wells offset from the array of injection wells.

US Pat. No. 10,533,795

METHOD FOR OBTAINING AN AIR PRODUCT IN AN AIR SEPARATING SYSTEM WITH TEMPORARY STORAGE, AND AIR SEPARATING SYSTEM

LINDE AKTIENGESELLSCHAFT,...

1. A method for obtaining an air product in an air separating plant, said method comprising:obtaining a liquid fraction from feed air and said liquid fraction is used at least in part for providing said air product,
introducing said liquid fraction is into a tank arrangement having at least two tanks,
wherein said liquid fraction is fed to one or more of said tanks of the tank arrangement and is withdrawn from one or more of said tanks of the tank arrangement to provide said air product and said liquid fraction is not simultaneously fed to and withdrawn from any of said tanks, and
wherein, prior to withdrawing liquid fraction from said one of the tanks, the composition of the liquid fraction within said one of the tanks is determined.

US Pat. No. 10,533,709

GAS CYLINDER CONTROL SYSTEM AND GAS CYLINDER FOR USE THEREWITH SYSTEM

1. A control system for managing the supply of bottled gas to users, the system comprising:a) a plurality of gas cylinder systems having a gas cylinder for receiving and distributing gas contained therein;
b) a first electronic monitoring system associated with said gas cylinder system and operable to monitor parameters associated with said cylinder system;
c) a plurality of second monitoring systems associated with one or more locations in which said cylinder may reside and being operable to monitor the presence or absence of any of said cylinder systems within said one or more locations, wherein said first monitoring system includes an operable mode in which it is fully operational and a sleep mode in which it is not fully operable but is able to be placed back into the operable mode upon receipt of a signal from said plurality of second monitoring systems and wherein said plurality of second monitoring systems are operable to send a signal to said first monitoring system to cause said first monitoring system to adopt said operable mode or said sleep mode as and when required; and
d) a computer system in communication with each of said second monitoring systems for receiving information therefrom relating to the presence or absence of said cylinder system in said one or more locations.

US Pat. No. 10,465,132

METHOD FOR SEPARATING A HYDROCARBON MIXTURE, SEPARATING PLANT AND STEAM CRACKING PLANT

LINDE AKTIENGESELLSCHAFT,...

1. A method for separating a hydrocarbon mixture comprising:steam cracking a feed to produce a hydrocarbon mixture comprising at least hydrocarbons having one, two and three carbon atoms, including ethane and ethylene;
separating the hydrocarbon mixture in a demethanizer to produce a first fraction comprising at least 50% of the hydrocarbons having two or more carbon atoms;
separating the first fraction in a separation unit downstream of the demethanizer to produce a fraction R comprising ethane and a C2 fraction,
wherein the fraction R comprising ethane comprises less than 10% of other hydrocarbons having two carbon atoms,
wherein the C2 fraction comprises at least 50% ethane and ethylene but less than 25% ethane;
separating the C2 fraction in a C2 separation unit to produce an ethane fraction and an ethylene fraction; and
separating at least part of the fraction R comprising ethane in a deethanizer.