ClassID:

160083

F25J1/0238 - CPC Classification

Classification description:

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process; Coupling of the liquefaction unit to other units or processes, so-called integrated processes; Heat exchange integration integrating refrigeration provided for liquefaction and purification/treatment of the gas to be liquefied, e.g. heavy hydrocarbon removal from natural gas Purification or treatment step is integrated within one refrigeration cycle only, i.e. the same or single refrigeration cycle provides feed gas cooling (if present) and overhead gas cooling

Recent Application in this class:
#1
20250334330
2025-10-30

GAS LIQUEFACTION SYSTEM WITH MULTIPLE REFRIGERANT CYCLES

#2
20240318907
2024-09-26

INTEGRATED REFRIGERATION SYSTEM OF A LIQUEFIED NATURAL GAS PRODUCTION PLANT COMPRISING A CARBON CAPTURE UNIT

#3
20230408187
2023-12-21

METHOD FOR PRODUCING LIQUEFIED NATURAL GAS FROM NATURAL GAS, AND CORRESPONDING PLANT

#4
20230085037
2023-03-16

System and method for preventing total plant shutdown due to low temperature excursion

#5
20220397341
2022-12-15

Process for the separation and liquefaction of methane and carbon dioxide with pre-separation upstream of the distillation column

#6
20220397340
2022-12-15

Process for the separation and liquefaction of methane and carbon dioxide with solidification of carbon dioxide outside the distillation column

#7
20220397339
2022-12-15

PROCESS FOR SEPARATING AND LIQUEFYING METHANE AND CO2 COMPRISING THE WITHDRAWAL OF VAPOUR FROM AN INTERMEDIATE STAGE OF THE DISTILLATION COLUMN

#8
20220146193
2022-05-12

METHOD FOR INTEGRATING A CO2 CAPTURE UNIT WITH THE PRECOOLING SECTION OF A NATURAL GAS LIQUEFACTION PLANT

#9
20210381757
2021-12-09

GAS STREAM COMPONENT REMOVAL SYSTEM AND METHOD

#10
20210310731
2021-10-07

FLEXIBLE INSTALLATION OF A HYDROCARBON LIQUEFACTION UNIT

#11
20210222947
2021-07-22

Process integration for natural gas liquid recovery

#12
20210102753
2021-04-08

PROCESS FOR PRODUCING SYNTHESIS GAS ORIGINATING FROM A NATURAL GAS LIQUEFACTION PROCESS

#13
20200232703
2020-07-23

System and method for removing freezing components from a feed gas

#14
20200224967
2020-07-16

Hydrocarbon distillation

#15
20200191477
2020-06-18

Heavy hydrocarbon and BTEX removal from pipeline gas to LNG liquefaction

#16
20200157895
2020-05-21

Poly refrigerated integrated cycle operation using solid-tolerant heat exchangers

#17
20190323769
2019-10-24

Mixed Refrigerant Liquefaction System and Method with Pre-Cooling

#18
20190257316
2019-08-22

System and method for preventing total plant shutdown due to low temperature excursion

#19
20190204007
2019-07-04

System and method for removing freezing components from a feed gas

#20
20190186831
2019-06-20

Process integration for natural gas liquid recovery

#21
20190186830
2019-06-20

Process integration for natural gas liquid recovery

#22
20190186829
2019-06-20

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

#23
20190186828
2019-06-20

Process integration for natural gas liquid recovery

#24
20190186827
2019-06-20

Process integration for natural gas liquid recovery

#25
20190186826
2019-06-20

Process integration for natural gas liquid recovery

#26
20190186825
2019-06-20

Process integration for natural gas liquid recovery

#27
20190186824
2019-06-20

Process integration for natural gas liquid recovery

#28
20190186823
2019-06-20

Process integration for natural gas liquid recovery

#29
20190186822
2019-06-20

Process integration for natural gas liquid recovery

#30
20190186821
2019-06-20

Process integration for natural gas liquid recovery

#31
20190186820
2019-06-20

Process integration for natural gas liquid recovery

#32
20190186819
2019-06-20

Process integration for natural gas liquid recovery

#33
20190186818
2019-06-20

Process integration for natural gas liquid recovery

#34
20180259250
2018-09-13

Hydrocarbon distillation

#35
20180208855
2018-07-26

Method for purifying a gas rich in hydrocarbons

#36
20180045459
2018-02-15

METHOD FOR LIQUEFYING A HYDROCARBON-RICH FRACTION

#37
20180023889
2018-01-25

Heavy hydrocarbon removal system for lean natural gas liquefaction

#38
20180003430
2018-01-04

Mixed refrigerant liquefaction system and method

#39
20170350646
2017-12-07

Process for purifying natural gas and liquefying carbon dioxide

#40
20170336136
2017-11-23

Liquefaction method and system

#41
20170284737
2017-10-05

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

#42
20170038137
2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN

#43
20170038132
2017-02-09

Methods and systems for integration of industrial site efficiency losses to produce LNG and/or LIN

#44
20160298898
2016-10-13

Mixed refrigerant liquefaction system and method

#45
20160252298
2016-09-01

System and Method for the Production of Liquefied Natural Gas

#46
20150308738
2015-10-29

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

#47
20150308736
2015-10-29

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

#48
20140238076
2014-08-28

Nitrogen rejection unit

#49
20140033763
2014-02-06

Heavy hydrocarbon removal from a natural gas stream

#50
20130098103
2013-04-25

Method of treating a hydrocarbon stream comprising methane, and an apparatus therefor

#51
20130096359
2013-04-18

Method of treating a hydrocarbon stream comprising methane, and an apparatus therefor

#52
20120103011
2012-05-03

METHOD AND APPARATUS FOR PRODUCING A COOLED HYDROCARBON STREAM

#53
20120090350
2012-04-19

Configurations and methods of heating value control in LNG liquefaction plant

#54
20120047943
2012-03-01

Process for natural gas liquefaction

#55
20120042690
2012-02-23

LNG facility with integrated NGL recovery for enhanced liquid recovery and product flexibility

#56
20110048067
2011-03-03

Natural gas liquefaction method with high-pressure fractionation

#57
20110011127
2011-01-20

Process for controlling liquefied natural gas heating value

#58
20100326133
2010-12-30

METHOD AND APPARATUS FOR COOLING DOWN A CRYOGENIC HEAT EXCHANGER AND METHOD OF LIQUEFYING A HYDROCARBON STREAM

#59
20100281915
2010-11-11

Pre-Cooled Liquefaction Process

#60
20100223951
2010-09-09

METHOD AND APPARATUS FOR COOLING A HYDROCARBON STREAM

#61
20100154470
2010-06-24

Method and system for producing liquefied natural gas (LNG)

#62
20100132405
2010-06-03

Method and system for producing LNG

#63
20090277217
2009-11-12

Enhanced nitrogen removal in an LNG facility

#64
20090151391
2009-06-18

LNG FACILITY EMPLOYING A HEAVIES ENRICHING STREAM

#65
20090064713
2009-03-12

Method and Apparatus for Liquefying a Natural Gas Stream

#66
20090064712
2009-03-12

Method and Apparatus for Liquefying a Natural Gas Stream

#67
20080156037
2008-07-03

Plant and Method for Liquefying Natural Gas

#68
20080156036
2008-07-03

Plant and Method for Liquefying Natural Gas

#69
20070245771
2007-10-25

Dual stage nitrogen rejection from liquefied natural gas

#70
20070056318
2007-03-15

Enhanced heavies removal/LPG recovery process for LNG facilities

#71
20070012072
2007-01-18

LNG FACILITY WITH INTEGRATED NGL EXTRACTION TECHNOLOGY FOR ENHANCED NGL RECOVERY AND PRODUCT FLEXIBILITY

#72
20070012071
2007-01-18

LNG facility providing enhanced liquid recovery and product flexibility

#73
20050113468
2005-05-26

Natural gas liquefaction and conversion method