ClassID:

160218

F25J3/04393 - CPC Classification

Classification description:

Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air; Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion; Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion

Recent Application in this class:
#1
20240384928
2024-11-21

METHOD AND PLANT FOR PROVIDING A PRESSURIZED OXYGEN-RICH, GASEOUS AIR PRODUCT

#2
20240230222
2024-07-11

METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#3
20240183610
2024-06-06

METHOD AND PLANT FOR LOW TEMPERATURE FRACTIONATION OF AIR

#4
20240133624
2024-04-25

METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#5
20240003620
2024-01-04

PROCESS AND PLANT FOR CRYOGENIC SEPARATION OF AIR

#6
20230358466
2023-11-09

METHOD FOR OBTAINING ONE OR MORE AIR PRODUCTS, AND AIR FRACTIONATION PLANT

#7
20230221069
2023-07-13

Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit

#8
20230103843
2023-04-06

LOW-PRESSURE NITROGEN TURBINE WITH AIR BOOSTER PARALLEL TO THE BOOSTER AIR COMPRESSOR

#9
20230090158
2023-03-23

METHOD AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#10
20230003445
2023-01-05

FULL LIQUID-PRODUCT AIR SEPARATION EQUIPMENT AND PROCESS THEREFOR

#11
20220260312
2022-08-18

PROCESS AND PLANT FOR LOW-TEMPERATURE FRACTIONATION OF AIR

#12
20220074657
2022-03-10

Method for starting up a cryogenic air separation unit and associated air separation unit

#13
20210404741
2021-12-30

Method for improved startup of an air separation unit having a falling film vaporizer

#14
20210222948
2021-07-22

Liquefaction apparatus

#15
20210164729
2021-06-03

Apparatus and process for liquefying gases

#16
20210156303
2021-05-27

Cryogenic liquefier by integration with power plant

#17
20200370825
2020-11-26

Method and apparatus for separating air by cryogenic distillation

#18
20200355429
2020-11-12

CRYOGENIC DISTILLATION METHOD AND APPARATUS FOR PRODUCING PRESSURIZED AIR BY MEANS OF EXPANDER BOOSTER IN LINKAGE WITH NITROGEN EXPANDER FOR BRAKING

#19
20200333069
2020-10-22

METHOD AND DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#20
20200158428
2020-05-21

Method for utilizing waste air to improve the capacity of an existing air separation unit

#21
20200158427
2020-05-21

Method for utilizing waste air to improve the capacity of an existing air separation unit

#22
20190390900
2019-12-26

Gas liquefaction column

#23
20190293348
2019-09-26

Nitrogen production method and nitrogen production apparatus

#24
20190049177
2019-02-14

Apparatus and method for separation of air by cryogenic distillation

#25
20190041130
2019-02-07

Method and device for separating air by cryogenic distillation

#26
20190041129
2019-02-07

Device and method for separating air by cryogenic distillation

#27
20180372404
2018-12-27

Method for liquefying natural gas and nitrogen

#28
20180347900
2018-12-06

Process for obtaining one or more air products and air separation plant

#29
20180335256
2018-11-22

Apparatus and process for liquefying gases

#30
20180180357
2018-06-28

PROCESS FOR PRODUCING ONE OR MORE AIR PRODUCTS, AND AIR SEPARATION PLANT

#31
20180073804
2018-03-15

Cryogenic air separation method for producing oxygen at high pressures

#32
20180038645
2018-02-08

Plant for producing oxygen by cryogenic air separation

#33
20180023890
2018-01-25

Method And Apparatus For Obtaining A Compressed Nitrogen Product

#34
20180017322
2018-01-18

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

#35
20180017321
2018-01-18

METHOD FOR RECOVERING GASEOUS NITROGEN FROM THE WASTE NITROGEN STREAM OF AN AIR SEPARATION UNIT

#36
20170314852
2017-11-02

Method for controlling a coupled heat exchanger system and heat exchanger system

#37
20170284735
2017-10-05

AIR SEPARATION REFRIGERATION SUPPLY METHOD

#38
20170241707
2017-08-24

Method for the capture of carbon dioxide through cryogenically processing gaseous emissions from fossil-fuel power generation

#39
20170234614
2017-08-17

Method for the cryogenic separation of air and air separation plant

#40
20170205141
2017-07-20

Method for producing pressurized gaseous oxygen through the cryogenic separation of air

#41
20170153058
2017-06-01

Method and device for the low-temperature separation of air at variable energy consumption

#42
20170131028
2017-05-11

Method and device for the low-temperature separation of air at variable energy consumption

#43
20170115054
2017-04-27

System and method for providing refrigeration to a cryogenic separation unit

#44
20170115053
2017-04-27

Air separation system and method

#45
20170051971
2017-02-23

Distillation column system and plant for production of oxygen by cryogenic fractionation of air

#46
20170030637
2017-02-02

Method for the production of low pressure gaseous oxygen

#47
20170030636
2017-02-02

Apparatus for the production of low pressure gaseous oxygen

#48
20160265841
2016-09-15

System and method for generation of oxygen by low-temperature air separation

#49
20160231053
2016-08-11

Process and apparatus for producing gaseous oxygen by cryogenic distillation of air

#50
20160187059
2016-06-30

Method and apparatus for obtaining a compressed gas product by cryogenic separation of air

#51
20160003535
2016-01-07

Method and apparatus for the cryogenic separation of air

#52
20160003534
2016-01-07

Method and apparatus for the cryogenic separation of air

#53
20160003531
2016-01-07

Method and device for generating gaseous compressed nitrogen

#54
20150345857
2015-12-03

Air separation system and method

#55
20140260422
2014-09-18

Low temperature air separation process for producing pressurized gaseous product

#56
20140033732
2014-02-06

Method and device for generating electrical energy

#57
20130255313
2013-10-03

PROCESS FOR THE SEPARATION OF AIR BY CRYOGENIC DISTILLATION

#58
20130219959
2013-08-29

Process and apparatus for the separation of air by cryogenic distillation

#59
20130111948
2013-05-09

Purification of Carbon Dioxide

#60
20120174625
2012-07-12

METHOD AND DEVICE FOR PRODUCING A GASEOUS PRESSURIZED OXYGEN PRODUCT BY CRYOGENIC SEPARATION OF AIR

#61
20120144861
2012-06-14

Process and installation for producing high-pressure nitrogen

#62
20120131952
2012-05-31

METHOD FOR RECOVERING A GASEOUS PRESSURE PRODUCT BY LOW-TEMPERATURE SEPARATION OF AIR

#63
20120131951
2012-05-31

AIR LIQUEFACTION SEPARATION METHOD AND APPARATUS

#64
20120118006
2012-05-17

Method and apparatus for separating air by cryogenic distillation

#65
20110259046
2011-10-27

Process and apparatus for the separation of air by cryogenic distillation

#66
20110197630
2011-08-18

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#67
20110146344
2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#68
20110146343
2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#69
20110120186
2011-05-26

Method and device for producing air gases in a gaseous and liquid form with a high flexibility and by cryogenic distillation

#70
20110083469
2011-04-14

Process and Device for Obtaining Liquid Nitrogen by Low Temperature Air Fractionation

#71
20110067445
2011-03-24

Method And Apparatus For Separating Air By Cryogenic Distillation

#72
20110067444
2011-03-24

Processes and Device for Low Temperature Separation of Air

#73
20110023540
2011-02-03

Method and device for low-temperature air separation

#74
20110011130
2011-01-20

Method And Apparatus For The Production Of Gas From Air In Highly Flexible Gaseous And Liquid Form By Cryogenic Distillation

#75
20100058805
2010-03-11

Air separation refrigeration supply method

#76
20090320520
2009-12-31

NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT

#77
20090188280
2009-07-30

PROCESS AND DEVICE FOR LOW-TEMPERATURE SEPARATION OF AIR

#78
20090078001
2009-03-26

Cryogenic Distillation Method and System for Air Separation

#79
20090064714
2009-03-12

PROCESS FOR LOW-TEMPERATURE SEPARATION OF AIR

#80
20090007595
2009-01-08

Low temperature air separation process for producing pressurized gaseous product

#81
20080223077
2008-09-18

Air separation method

#82
20080223076
2008-09-18

Cryogenic Distillation Method and Installation for Air Separation

#83
20080223075
2008-09-18

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#84
20070209389
2007-09-13

Cryogenic air separation system for enhanced liquid production

#85
20070204652
2007-09-06

PROCESS AND APPARATUS FOR PRODUCING ULTRAPURE OXYGEN

#86
20070017251
2007-01-25

Cryogenic distillation method and system for air separation

#87
20060277944
2006-12-14

Method and system for the production of pressurized air gas by cryogenic distillation of air

#88
20060272353
2006-12-07

Process and apparatus for the separation of air by cryogenic distillation

#89
20060254312
2006-11-16

Method and installation for producing, in gaseous form and under high pressure, at least one fluid chosen from oxygen, argon and nitrogen by cryogenic distillation of air

#90
20060010912
2006-01-19

Low temperature air separation process for producing pressurized gaseous product

#91
20050138960
2005-06-30

Cryogenic air separation system for producing elevated pressure nitrogen

#92
20050126221
2005-06-16

Process and apparatus for the separation of air by cryogenic distillation

#93
17558524
2025-12-09

Apparatus and process for liquefying gases