ClassID:

160520

F25J2270/14 - CPC Classification

Classification description:

Refrigeration techniques used External refrigeration with work-producing gas expansion loop

Sub-classes:
Recent Application in this class:
#1
20250305764
2025-10-02

PROCESS FOR REMOTE LOX/LIN PRODUCTION BY HPAIR TURBO EXPANSION

#2
20250244075
2025-07-31

HYDROGEN COOLING

#3
20250237430
2025-07-24

LEAKAGE DETECTION SYSTEM OF RELIQUEFACTION SYSTEM FOR SHIP

#4
20250180283
2025-06-05

GAS TREATMENT SYSTEM AND SHIP INCLUDING SAME

#5
20250146745
2025-05-08

LNG EXERGY OPTIMIZATION FOR SBCC

#6
20250101329
2025-03-27

Methane Purification System and Method

#7
20240418437
2024-12-19

Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles

#8
20240393041
2024-11-28

INSTALLATION AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#9
20240361071
2024-10-31

SYSTEMS AND METHODS FOR HYDROGEN LIQUEFACTION

#10
20240318906
2024-09-26

HYDROGEN LIQUEFACTION SYSTEM AND HYDROGEN LIQUEFACTION METHOD

#11
20240288217
2024-08-29

SYSTEM AND METHOD FOR RELIQUEFYING BOIL-OFF GAS OF VESSEL

#12
20240255219
2024-08-01

PROCESS FOR COOLING A GAS BY MEANS OF A REFRIGERATION CYCLE

#13
20240191941
2024-06-13

ETHANE SEPARATION WITH OVERHEAD CRYOGENIC HEAT EXCHANGER

#14
20240125545
2024-04-18

DEVICE AND METHOD FOR REFRIGERATING OR LIQUEFYING A FLUID

#15
20240118024
2024-04-11

DEVICE AND METHOD FOR REFRIGERATION OR LIQUEFACTION OF A FLUID

#16
20230213278
2023-07-06

APPARATUS FOR PRECOOLING HYDROGEN FOR LIQUEFACTION USING EXTERNAL LIQUID NITROGEN AND HIGH PRESSURE GASEOUS NITROGEN

#17
20230003443
2023-01-05

Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation

#18
20220333855
2022-10-20

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS USING TWO DISTINCT REFRIGERATION CYCLES WITH AN INTEGRAL GEAR MACHINE

#19
20220128299
2022-04-28

Liquefaction of production gas

#20
20220099364
2022-03-31

OFFSHORE LIQUEFACTION PROCESS WITHOUT COMPRESSION

#21
20210364229
2021-11-25

Systems and Methods of Removing Contaminants in a Liquid Nitrogen Stream Used to Liquefy Natural Gas

#22
20210140707
2021-05-13

Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation

#23
20210063083
2021-03-04

Liquefaction of Production Gas

#24
20200208574
2020-07-02

Method for exhaust waste energy recovery at the internal combustion engine polygeneration plant

#25
20200149807
2020-05-14

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#26
20190331417
2019-10-31

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#27
20190310015
2019-10-10

DEVICE AND METHOD FOR LIQUEFYING A NATURAL GAS AND SHIP COMPRISING SUCH A DEVICE

#28
20190151789
2019-05-23

Carbon dioxide capturing apparatus using cold heat of liquefied natural gas and power generation system using same

#29
20190041124
2019-02-07

Integrated expander-motor compressor

#30
20180313604
2018-11-01

Hydrogen-neon mixture refrigeration cycle for large-scale hydrogen cooling and liquefaction

#31
20180292128
2018-10-11

Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration

#32
20180252469
2018-09-06

Method for removing a foulant from a gas stream with minimal external refrigeration

#33
20180142950
2018-05-24

LNG integration with cryogenic unit

#34
20180073802
2018-03-15

Method for energy storage with co-production of peaking power and liquefied natural gas

#35
20180038644
2018-02-08

Method for liquefaction of industrial gas by integration of methanol plant and air separation unit

#36
20180038642
2018-02-08

PROCESS INTEGRATION OF A GAS PROCESSING UNIT WITH LIQUEFACTION UNIT

#37
20180038641
2018-02-08

Method for liquefaction of industrial gas by integration of methanol plant and air separation unit

#38
20180038638
2018-02-08

Integration of industrial gas site with liquid hydrogen production

#39
20170131029
2017-05-11

Method and system for providing supplemental refrigeration to an air separation plant

#40
20170016668
2017-01-19

Increasing efficiency in an LNG production system by pre-cooling a natural gas feed stream

#41
20160377084
2016-12-29

CENTRIFUGAL COMPRESSOR

#42
20150354888
2015-12-10

Air separation apparatus to produce oxygen and nitrogen through isobaric separation

#43
20150260451
2015-09-17

Liquefied natural gas facility employing an optimized mixed refrigerant system

#44
20150226094
2015-08-13

Method and device for generating electrical energy

#45
20150013380
2015-01-15

Method for separating off acid gases from natural gas

#46
20140245780
2014-09-04

Multi nitrogen expansion process for LNG production

#47
20140190205
2014-07-10

Method for liquefying natural gas with a triple closed circuit of coolant gas

#48
20140165587
2014-06-19

System for converting gaseous fuel into liquid fuel

#49
20130192301
2013-08-01

Method and system for air separation using a supplemental refrigeration cycle

#50
20130125581
2013-05-23

Ethylene expansion for low temperature refrigeration in polyethylene vent recovery

#51
20130111948
2013-05-09

Purification of Carbon Dioxide

#52
20130008204
2013-01-10

Refrigeration process

#53
20120186296
2012-07-26

PROCESS AND APPARATUS FOR SWEETENING AND LIQUEFYING A GAS STREAM

#54
20120180657
2012-07-19

METHOD FOR PRODUCING AT LEAST ONE GAS HAVING A LOW CO2 CONTENT AND AT LEAST ONE FLUID HAVING A HIGH CO2 CONTENT

#55
20120085128
2012-04-12

Method for Recovery of Propane and Heavier Hydrocarbons

#56
20120085127
2012-04-12

Method for enhanced recovery of ethane, olefins, and heavier hydrocarbons from low pressure gas

#57
20120079841
2012-04-05

Refrigeration process and system for recovering cold from methane by refrigerants

#58
20110302955
2011-12-15

Method For Trapping CO2 By Solid Cryocondensation In A Turbine

#59
20110296868
2011-12-08

CO2 Recovery Method Using Cryo-Condensation

#60
20110252827
2011-10-20

CO2 Recovery And Cold Water Production Method

#61
20110239701
2011-10-06

METHOD OF REJECTING NITROGEN FROM A HYDROCARBON STREAM TO PROVIDE A FUEL GAS STREAM AND AN APPARATUS THEREFOR

#62
20110232327
2011-09-29

Method for Processing Off Gas

#63
20110226009
2011-09-22

Process for producing liquid and gaseous nitrogen streams, a gaseous stream which is rich in helium and a denitrided stream of hydrocarbons and associated installation

#64
20110126585
2011-06-02

Krypton xenon recovery from pipeline oxygen

#65
20100313600
2010-12-16

Method and apparatus for pressurized product production

#66
20100215566
2010-08-26

Method to condense and recover carbon dioxide from fuel cells

#67
20100192627
2010-08-05

Method and device for the cryogenic separation of a methane-rich flow

#68
20100192626
2010-08-05

Method and apparatus for liquefying a gaseous hydrocarbon stream

#69
20100162754
2010-07-01

Method And Device For Separating A Mixture Of Hydrogen, Methane And Carbon Monoxide By Cryogenic Distillation

#70
20090188278
2009-07-30

Method for purifying and separating a krypton-xenon mixture by rectification and a device for carrying out said method

#71
20080245101
2008-10-09

Integrated Method and Installation for Cryogenic Adsorption and Separation for Producing Co2

#72
20080148770
2008-06-26

Process to obtain liquefied natural gas

#73
20060248921
2006-11-09

Landfill gas purification and liquefaction process

#74
20060075776
2006-04-13

Method for providing cooling for gas liquefaction