ClassID:

160342

F25J2200/40 - CPC Classification

Classification description:

Processes or apparatus using separation by rectification Features relating to the provision of boil-up in the bottom of a column

Recent Application in this class:
#1
20250207852
2025-06-26

OPEN LOOP LIQUEFACTION PROCESS WITH NGL RECOVERY

#2
20240351874
2024-10-24

Systems and methods for production and separation of hydrogen and carbon dioxide

#3
20240318909
2024-09-26

METHODS FOR OPERATING HYDROCARBON REMOVAL SYSTEMS FROM NATURAL GAS STREAMS

#4
20240125550
2024-04-18

Process and Apparatus for Improved Recovery of Argon

#5
20240125549
2024-04-18

Open Loop Liquefaction Process with NGL Recovery

#6
20230408187
2023-12-21

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

#7
20230235955
2023-07-27

System and Method for Separating Methane and Nitrogen with Reduced Horsepower Demands

#8
20220364787
2022-11-17

HEAT EXCHANGER FOR A LIQUEFIED NATURAL GAS FACILITY

#9
20220252343
2022-08-11

PROCESS AND APPARATUS FOR HEAVY HYDROCARBON REMOVAL FROM LEAN NATURAL GAS BEFORE LIQUEFACTION

#10
20210364229
2021-11-25

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

#11
20210323818
2021-10-21

Systems and methods for production and separation of hydrogen and carbon dioxide

#12
20210180864
2021-06-17

System and method for separating methane and nitrogen with reduced horsepower demands

#13
20210156613
2021-05-27

METHODS AND SYSTEMS FOR REMOVING NITROGEN FROM NATURAL GAS

#14
20210080175
2021-03-18

METHOD AND APPARATUS FOR THE CRYOGENIC SEPARATION OF A SYNTHESIS GAS CONTAINING A NITROGEN SEPARATION STEP

#15
20210055048
2021-02-25

PROCESS AND APPARATUS FOR PRODUCTION OF CARBON MONOXIDE BY PARTIAL CONDENSATION

#16
20200370825
2020-11-26

Method and apparatus for separating air by cryogenic distillation

#17
20200355431
2020-11-12

Impurity control for a high pressure COpurification and supply system

#18
20200355430
2020-11-12

Impurity control for a high pressure COpurification and supply system

#19
20200224967
2020-07-16

Hydrocarbon distillation

#20
20200191477
2020-06-18

Heavy hydrocarbon and BTEX removal from pipeline gas to LNG liquefaction

#21
20200088466
2020-03-19

Helium extraction from natural gas

#22
20200072547
2020-03-05

System and method for separating natural gas liquid and nitrogen from natural gas streams

#23
20190285340
2019-09-19

Method and system for liquefaction of natural gas using liquid nitrogen

#24
20190135626
2019-05-09

Systems and methods for production and separation of hydrogen and carbon dioxide

#25
20190041128
2019-02-07

Recovery Of Helium From Nitrogen-Rich Streams

#26
20180332454
2018-11-15

System and method for reducing nitrogen content of GSP/expander product streams for pipeline transport

#27
20180231306
2018-08-16

System and method for separating natural gas liquid and nitrogen from natural gas streams

#28
20180209726
2018-07-26

Method and system for separating carbon dioxide from flue gas

#29
20180073803
2018-03-15

Process for the production of dilute ethylene

#30
20180058757
2018-03-01

Process and apparatus for producing carbon monoxide

#31
20180023888
2018-01-25

METHOD FOR RECOVERING HELIUM

#32
20170363351
2017-12-21

METHOD AND APPARATUS FOR SEPARATING A FEED GAS CONTAINING AT LEAST 20 MOL % OF CO2 AND AT LEAST 20 MOL % OF METHANE, BY PARTIAL CONDENSATION AND/OR BY DISTILLATION

#33
20170343257
2017-11-30

Gas recovery system for compressor, compressor system, and refrigeration cycle system

#34
20170284737
2017-10-05

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

#35
20170234612
2017-08-17

Treatment of nitrogen-rich natural gas streams

#36
20170211878
2017-07-27

Method and unit for separating the light and heavy components of natural gas

#37
20170176099
2017-06-22

PROCESS AND APPARATUS FOR HEAVY HYDROCARBON REMOVAL FROM LEAN NATURAL GAS BEFORE LIQUEFACTION

#38
20170176097
2017-06-22

Systems and Methods for Recovering Desired Light Hydrocarbons from Refinery Waste Gas Using a Back-End Turboexpander

#39
20170051970
2017-02-23

Ethane recovery and ethane rejection methods and configurations

#40
20170045291
2017-02-16

METHOD FOR PURIFYING, COOLING AND SEPARATING A GASEOUS MIXTURE AND ASSOCIATED APPARATUS

#41
20170045290
2017-02-16

Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane

#42
20170030633
2017-02-02

SYSTEM AND METHOD FOR LIQUEFACATION OF NATURAL GAS

#43
20170016668
2017-01-19

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

#44
20170016667
2017-01-19

Liquefied natural gas production system and method with greenhouse gas removal

#45
20170003073
2017-01-05

METHOD AND APPARATUS FOR SEPARATION AT SUBAMBIENT TEMPERATURE

#46
20160313058
2016-10-27

Process and apparatus for separating NOfrom a COand NO-containing fluid

#47
20160258675
2016-09-08

SPLIT FEED ADDITION TO ISO-PRESSURE OPEN REFRIGERATION LPG RECOVERY

#48
20160003533
2016-01-07

Separation at sub-ambient temperature of a gaseous mixture containing carbon dioxide and a lighter contaminant

#49
20160003530
2016-01-07

Method and appliance for separating a mixture containing carbon dioxide by cryogenic distillation

#50
20150308736
2015-10-29

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

#51
20150300733
2015-10-22

Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery

#52
20150276309
2015-10-01

Process and apparatus for separating NOfrom a COand NO—containing fluid

#53
20150276308
2015-10-01

Process for the removal of COfrom acid gas

#54
20150253071
2015-09-10

Heat exchanger for a liquefied natural gas facility

#55
20150174523
2015-06-25

Process and apparatus for the separation of a stream containing carbon dioxide, water and at least one light impurity including a separation step at subambient temperature

#56
20150168054
2015-06-18

Method and apparatus for separating a carbon dioxide-rich gas

#57
20150121954
2015-05-07

Method and apparatus for the low-temperature fractionation of a fluid mixture

#58
20150114033
2015-04-30

Purification of carbon dioxide

#59
20150114032
2015-04-30

Purification of carbon dioxide

#60
20150059402
2015-03-05

Method and device for separating a mixture containing carbon dioxide by means of distillation

#61
20150013380
2015-01-15

Method for separating off acid gases from natural gas

#62
20150007981
2015-01-08

Processing and transport of stranded gas to conserve resources and reduce emissions

#63
20140238076
2014-08-28

Nitrogen rejection unit

#64
20140130541
2014-05-15

Nitrogen removal with ISO-pressure open refrigeration natural gas liquids recovery

#65
20140060113
2014-03-06

Method for separating C2+-hydrocarbons or C3+-hydrocarbons from a hydrocarbon-rich fraction

#66
20140033763
2014-02-06

Heavy hydrocarbon removal from a natural gas stream

#67
20140013797
2014-01-16

System and method for removing excess nitrogen from gas subcooled expander operations

#68
20130219956
2013-08-29

He-3 recovery from natural helium by distillation

#69
20130213086
2013-08-22

METHODS AND APPARATUSES FOR PROCESSING NATURAL GAS

#70
20130098105
2013-04-25

Cryogenic systems for removing acid gases from a hydrocarbon gas stream using co-current separation devices

#71
20130074542
2013-03-28

SYSTEM AND METHOD FOR RECOVERING NATURAL GAS LIQUIDS WITH AUTO REFRIGERATION SYSTEM

#72
20130014390
2013-01-17

Configurations and methods for retrofitting an NGL recovery plant

#73
20120324942
2012-12-27

Apparatus and method for the distillation separation of a mixture containing carbon dioxide

#74
20120297823
2012-11-29

Method and appliance for separating air by cryogenic distillation

#75
20120285196
2012-11-15

PROCESS AND APPARATUS FOR SEPARATION OF NITROGEN FROM LNG

#76
20120279254
2012-11-08

Method for cryogenically separating a mixture of nitrogen and carbon monoxide

#77
20120167617
2012-07-05

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

#78
20120145529
2012-06-14

Apparatus, process and system for delivering fluid to a distillation column or reactor

#79
20120144861
2012-06-14

Process and installation for producing high-pressure nitrogen

#80
20120118007
2012-05-17

PROCESS OF HEAT INTEGRATING FEED AND COMPRESSOR DISCHARGE STREAMS WITH HEAVIES REMOVAL SYSTEM IN A LIQUEFIED NATURAL GAS FACILITY

#81
20120085128
2012-04-12

Method for Recovery of Propane and Heavier Hydrocarbons

#82
20120085127
2012-04-12

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

#83
20120067081
2012-03-22

Process And Plant For Recovering Argon In A Separation Unit For A Purge Gas Used In The Synthesis Of Ammonia

#84
20120065450
2012-03-15

Process that utilizes combined distillation and membrane separation in the separation of an acidic contaminant from a light hydrocarbon gas stream

#85
20120042690
2012-02-23

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

#86
20110271713
2011-11-10

Purification of carbon dioxide

#87
20110239701
2011-10-06

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

#88
20110232327
2011-09-29

Method for Processing Off Gas

#89
20110056239
2011-03-10

Method and device for cryogenically separating a mixture of hydrogen and carbon monoxide

#90
20110023536
2011-02-03

Method and apparatus for cooling a hydrocarbon stream

#91
20100307193
2010-12-09

METHOD AND APPARATUS FOR COOLING AND SEPARATING A HYDROCARBON STREAM

#92
20100275646
2010-11-04

Method of Separating Off Nitrogen from Liquefied Natural Gas

#93
20100251765
2010-10-07

Cryogenic Separation of Synthesis Gas

#94
20100236285
2010-09-23

Hydrocarbon gas processing

#95
20100223952
2010-09-09

Separation of carbon monoxide from gaseous mixtures containing carbon monoxide

#96
20100223950
2010-09-09

Nitrogen removal with iso-pressure open refrigeration natural gas liquids recovery

#97
20100199718
2010-08-12

Storage enclosure, method and apparatus for producing carbon monoxide and/or hydrogen by means of cryogenic separation, including one such enclosure

#98
20100162755
2010-07-01

Method for nitrogen rejection and or helium recovery in an LNG liquefaction plant

#99
20100108487
2010-05-06

Dividing wall column with a heat pump

#100
20100043489
2010-02-25

Method for separating a mixture of carbon monoxide, methane, hydrogen and optionally nitrogen by cryogenic distillation

#101
20090277217
2009-11-12

Enhanced nitrogen removal in an LNG facility

#102
20090211263
2009-08-27

Apparatus and method for regasification of liquefied natural gas

#103
20080314079
2008-12-25

Nitrogen Rejection Column Reboiler Configuration

#104
20080173585
2008-07-24

Purification of carbon dioxide

#105
20080066493
2008-03-20

Treating Liquefied Natural Gas

#106
20080066492
2008-03-20

Treating Liquefied Natural Gas

#107
20070012072
2007-01-18

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

#108
20060150672
2006-07-13

Internal refrigeration for enhanced NGL recovery