ClassID:

160027

F25J1/0042 - CPC Classification

Classification description:

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by liquid expansion with extraction of work

Recent Application in this class:
#1
20260055956
2026-02-26

SYSTEM AND METHOD FOR SIMULTANEOUSLY PRODUCING HIGH-PURITY LIQUID NITROGEN AND HIGH-PURITY LIQUID CARBON DIOXIDE AT LOW COST BY USING FLUE GAS

#2
20250257939
2025-08-14

SYSTEMS AND METHODS FOR LNG REFRIGERATION AND LIQUEFACTION

#3
20250198695
2025-06-19

Method for liquefying a methane-rich feed gas, and corresponding facility

#4
20240384926
2024-11-21

FACILITY AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#5
20240318909
2024-09-26

METHODS FOR OPERATING HYDROCARBON REMOVAL SYSTEMS FROM NATURAL GAS STREAMS

#6
20240060717
2024-02-22

SYSTEM FOR STORING AND PRODUCING ENERGY TO STABILIZE THE POWER NETWORK

#7
20230408191
2023-12-21

METHOD FOR EXTRACTING ETHANE FROM AN INITIAL NATURAL GAS STREAM AND CORRESPONDING PLANT

#8
20220221220
2022-07-14

Methods and systems for hydrogen liquefaction

#9
20220074652
2022-03-10

Natural gas liquefaction by a high pressure expansion process

#10
20210364229
2021-11-25

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

#11
20210348839
2021-11-11

SYSTEM AND METHOD FOR CRYOGENIC AIR SEPARATION USING A BOOSTER LOADED LIQUID TURBINE FOR EXPANSION OF A LIQUID AIR STREAM

#12
20210348837
2021-11-11

System and method for natural gas and nitrogen liquefaction with dual operating modes

#13
20210088274
2021-03-25

Pretreatment, pre-cooling, and condensate recovery of natural gas by high pressure compression and expansion

#14
20200232704
2020-07-23

Systems and methods for using multiple cryogenic hydraulic turbines

#15
20200232703
2020-07-23

System and method for removing freezing components from a feed gas

#16
20200124345
2020-04-23

Large scale coastal liquefaction

#17
20190381450
2019-12-19

SYSTEMS, PROCESSES AND METHODS FOR CONCENTRATING ACID GAS AND PRODUCING HYDROCARBON LIQUID WITH A MEMBRANE SEPARATION SYSTEM

#18
20190204007
2019-07-04

System and method for removing freezing components from a feed gas

#19
20190204006
2019-07-04

Systems and methods for LNG refrigeration and liquefaction

#20
20190120548
2019-04-25

Natural Gas Liquefaction by a High Pressure Expansion Process using Multiple Turboexpander Compressors

#21
20190072007
2019-03-07

Method for liquid air energy storage with semi-closed CObottoming cycle

#22
20190049174
2019-02-14

METHOD AND SYSTEM FOR LIQUEFYING A NATURAL GAS FEED STREAM

#23
20180347897
2018-12-06

Large-scale hydrogen liquefaction by means of a high pressure hydrogen refrigeration cycle combined to a novel single mixed-refrigerant precooling

#24
20180320957
2018-11-08

Low-temperature mixed-refrigerant for hydrogen precooling in large scale

#25
20180313604
2018-11-01

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

#26
20180283773
2018-10-04

Hydraulic Turbine Between Middle and Cold Bundles of Natural Gas Liquefaction Heat Exchanger

#27
20180221807
2018-08-09

Method for liquid air energy storage with fueled and zero carbon emitting power output augmentation

#28
20180216879
2018-08-02

Method for starting and operating a plant for the liquefaction of a gaseous product

#29
20180202713
2018-07-19

Method and system for cooling and separating a hydrocarbon stream

#30
20180202610
2018-07-19

Process for expansion and storage of a flow of liquefied natural gas from a natural gas liquefaction plant, and associated plant

#31
20180149424
2018-05-31

Liquefied Natural Gas Production

#32
20180073802
2018-03-15

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

#33
20180003430
2018-01-04

Mixed refrigerant liquefaction system and method

#34
20170307290
2017-10-26

LIQUEFACTION PROCESS FOR PRODUCING SUBCOOLED LNG

#35
20170284737
2017-10-05

Integrated nitrogen removal in the production of liquefied natural gas using intermediate feed gas separation

#36
20170241709
2017-08-24

Method of removing carbon dioxide during liquid natural gas production from natural gas at gas pressure letdown stations

#37
20170210997
2017-07-27

Hydrocarbon condensate stabilizer and a method for producing a stabilized hydrocarbon condenstate stream

#38
20170191748
2017-07-06

Hydrocarbon condensate stabilizer and a method for producing a stabilized hydrocarbon condensate stream

#39
20170167787
2017-06-15

Method of natural gas liquefaction on LNG carriers storing liquid nitrogen

#40
20170022897
2017-01-26

METHOD AND INSTALLATION FOR STORING AND RECOVERING ENERGY

#41
20170016668
2017-01-19

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

#42
20170016577
2017-01-19

Liquid Air Energy Storage Systems, Devices, and Methods

#43
20170010041
2017-01-12

Systems and methods for the production of liquefied nitrogen using liquefied natural gas

#44
20170003072
2017-01-05

Systems and methods for using multiple cryogenic hydraulic turbines

#45
20160377340
2016-12-29

Liquefaction system using a turboexpander

#46
20160298898
2016-10-13

Mixed refrigerant liquefaction system and method

#47
20160282041
2016-09-29

Liquefaction process for producing subcooled LNG

#48
20160190896
2016-06-30

Method for generating electrical energy and energy generation plant

#49
20160138861
2016-05-19

System and method for liquefied natural gas production

#50
20160131115
2016-05-12

Systems and methods of utilizing axial flow expanders

#51
20160069609
2016-03-10

Method of liquefying a contaminated hydrocarbon-containing gas stream

#52
20150308738
2015-10-29

Integrated nitrogen removal in the production of liquefied natural gas using refrigerated heat pump

#53
20150308736
2015-10-29

Integrated nitrogen removal in the production of liquefied natural gas using dedicated reinjection circuit

#54
20150300301
2015-10-22

Liquefied gas treatment system for vessel

#55
20140283938
2014-09-25

Three-way integrated Joule-Thomson valve and liquefied gas expander

#56
20140283549
2014-09-25

Method of gas expansion using liquefied gas expander and integrated Joule-Thomson valve

#57
20140245780
2014-09-04

Multi nitrogen expansion process for LNG production

#58
20140026611
2014-01-30

Method and apparatus for liquefying a gas or cooling a feed gas at supercritical pressure

#59
20130340475
2013-12-26

Natural gas liquefaction employing independent refrigerant path

#60
20130333415
2013-12-19

Liquefaction process producing subcooled LNG

#61
20120289407
2012-11-15

Superconducting system for enhanced natural gas production

#62
20120167617
2012-07-05

METHOD FOR TREATING A MULTI-PHASE HYDROCARBON STREAM AND AN APPARATUS THEREFOR

#63
20120060552
2012-03-15

METHOD AND APPARATUS FOR COOLING A GASEOUS HYDROCARBON STREAM

#64
20120047943
2012-03-01

Process for natural gas liquefaction

#65
20120036888
2012-02-16

METHOD AND SYSTEM FOR THE SMALL-SCALE PRODUCTION OF LIQUIFIED NATURAL GAS (LNG) AND COLD COMPRESSED GAS (CCNG) FROM LOW-PRESSURE NATURAL GAS

#66
20110308276
2011-12-22

METHOD AND SYSTEM FOR PERIODIC COOLING, STORING, AND HEATING WITH MULTIPLE REGENERATORS

#67
20110308275
2011-12-22

METHOD AND SYSTEM FOR PERIODIC COOLING, STORING, AND HEATING OF ATMOSPHERIC GAS

#68
20110297346
2011-12-08

Methods and Systems of Regenerative Heat Exchange

#69
20110271666
2011-11-10

Multistage liquefied gas expander with variable geometry hydraulic stages

#70
20110239701
2011-10-06

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

#71
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

#72
20110067439
2011-03-24

METHOD AND SYSTEM FOR PRODUCTION OF LIQUID NATURAL GAS

#73
20110056237
2011-03-10

Method and apparatus for liquefying a hydrocarbon stream

#74
20110023536
2011-02-03

Method and apparatus for cooling a hydrocarbon stream

#75
20100319396
2010-12-23

METHOD AND APPARATUS FOR LIQUEFYING HYDROCARBON STREAMS

#76
20100313597
2010-12-16

Method and system for production of liquid natural gas

#77
20100300144
2010-12-02

Liquefied gas expander and integrated Joule-Thomson valve

#78
20100275646
2010-11-04

Method of Separating Off Nitrogen from Liquefied Natural Gas

#79
20100251763
2010-10-07

Apparatus and Methods for Natural Gas Transportation and Processing

#80
20100223951
2010-09-09

METHOD AND APPARATUS FOR COOLING A HYDROCARBON STREAM

#81
20100212329
2010-08-26

BOIL-OFF GAS TREATMENT PROCESS AND SYSTEM

#82
20100192626
2010-08-05

Method and apparatus for liquefying a gaseous hydrocarbon stream

#83
20100186929
2010-07-29

Method and apparatus for cooling a hydrocarbon stream

#84
20100186445
2010-07-29

Natural gas liquefaction processes with feed gas refrigerant cooling loops

#85
20100126186
2010-05-27

METHOD AND APPARATUS FOR GENERATING A GASEOUS HYDROCARBON STREAM FROM A LIQUEFIED HYDROCARBON STREAM

#86
20100107684
2010-05-06

Natural gas liquefaction process

#87
20100031699
2010-02-11

Method and apparatus for liquefying a hydrocarbon stream

#88
20100011808
2010-01-21

METHOD AND APPARATUS FOR LIQUEFYING A HYDROCARBON STREAM

#89
20090301132
2009-12-10

Optimized heavies removal system in an LNG facility

#90
20090301131
2009-12-10

METHOD AND APPARATUS FOR TREATING A HYDROCARBON STREAM

#91
20090293538
2009-12-03

NATURAL GAS LIQUEFACTION

#92
20090255294
2009-10-15

Method and apparatus for liquefying a hydrocarbon stream

#93
20090229275
2009-09-17

COMPACT CONFIGURATION FOR CRYOGENIC PUMPS AND TURBINES

#94
20090217701
2009-09-03

Natural Gas Liquefaction Process for Ling

#95
20090183505
2009-07-23

PARALLEL FLOW CRYOGENIC LIQUIFIED GAS EXPANDERS

#96
20090095019
2009-04-16

Method and apparatus for liquefying a hydrocarbon stream

#97
20090095018
2009-04-16

METHOD FOR LIQUEFYING A HYDROCARBON STREAM

#98
20090064713
2009-03-12

Method and Apparatus for Liquefying a Natural Gas Stream

#99
20090064712
2009-03-12

Method and Apparatus for Liquefying a Natural Gas Stream

#100
20090031755
2009-02-05

Natural gas liquefaction process to extend lifetime of gas wells

#101
20090031754
2009-02-05

METHOD AND APPARATUS TO IMPROVE OVERALL EFFICIENCY OF LNG LIQUEFACTION SYSTEMS

#102
20090019887
2009-01-22

Method of conditioning natural gas in preparation for storage

#103
20080163645
2008-07-10

NATURAL GAS PROCESSING METHOD

#104
20080156037
2008-07-03

Plant and Method for Liquefying Natural Gas

#105
20080156036
2008-07-03

Plant and Method for Liquefying Natural Gas

#106
20080156035
2008-07-03

Process and Apparatus for the Liquefaction of Carbon Dioxide

#107
20080142204
2008-06-19

Heat exchanger design for natural gas liquefaction

#108
20080122226
2008-05-29

Compact assemblies for high efficiency performance of cryogenic liquefied gas expanders and pumps

#109
20080028790
2008-02-07

Natural gas liquefaction

#110
20070245771
2007-10-25

Dual stage nitrogen rejection from liquefied natural gas

#111
20070227185
2007-10-04

Mixed Refrigerant Liquefaction Process

#112
20070193303
2007-08-23

Scalable capacity liquefied natural gas plant

#113
20070157662
2007-07-12

Method and apparatus for producing products from natural gas including helium and liquefied natural gas

#114
20070149838
2007-06-28

Method for adjusting the high heating value of gas in the LNG chain

#115
20070113584
2007-05-24

Optimized LNG system with liquid expander

#116
20070095099
2007-05-03

Method for processing a stream of LNG obtained by means of cooling using a first refrigeration cycle and associated installation

#117
20060213222
2006-09-28

Compact, modular method and apparatus for liquefying natural gas

#118
20050268649
2005-12-08

Natural gas liquefaction

#119
20050210914
2005-09-29

Process and apparatus for liquefying hydrogen

#120
20050113468
2005-05-26

Natural gas liquefaction and conversion method