ClassID:

160169

F25J3/04084 - 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; Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of nitrogen

Recent Application in this class:
#1
20250290692
2025-09-18

APPARATUS AND PROCESS FOR PROVIDING NITROGEN AND OXYGEN

#2
20240003620
2024-01-04

PROCESS AND PLANT FOR CRYOGENIC SEPARATION OF AIR

#3
20230358466
2023-11-09

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

#4
20230221069
2023-07-13

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

#5
20230055084
2023-02-23

NITROGEN AND ARGON PRODUCING AIR SEPARATION UNIT

#6
20230052938
2023-02-16

Cryogenic air separation unit with argon condenser vapor recycle

#7
20220221221
2022-07-14

Fluid recovery process and apparatus

#8
20220090855
2022-03-24

Method and apparatus for producing high-purity nitrogen and low-purity oxygen

#9
20210381761
2021-12-09

Method and unit for low-temperature air separation

#10
20210372696
2021-12-02

ENHANCEMENTS TO A DUAL COLUMN NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#11
20210356206
2021-11-18

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

#12
20210164729
2021-06-03

Apparatus and process for liquefying gases

#13
20210140708
2021-05-13

CRYOGENIC RECTIFICATION PROCESS-BASED METHOD FOR PRODUCING AIR PRODUCT, AND AIR SEPARATION SYSTEM

#14
20200256616
2020-08-13

Annular divided wall column

#15
20200149810
2020-05-14

Annular divided wall column with ring shaped collectors and distributers

#16
20200149809
2020-05-14

Annular divided wall column

#17
20200149808
2020-05-14

AIR SEPARATION METHOD AND APPARATUS

#18
20200149806
2020-05-14

SYSTEM AND METHOD FOR ENHANCED RECOVERY OF ARGON AND OXYGEN FROM A NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#19
20200132368
2020-04-30

Apparatus for the distillation of air by cryogenic distillation

#20
20200132367
2020-04-30

Method and apparatus for air separation by cryogenic distillation

#21
20190368811
2019-12-05

Process and apparatus for separating air using a split heat exchanger

#22
20190331416
2019-10-31

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

#23
20190063831
2019-02-28

Annular divided wall column with ring shaped collectors and distributers for an air separation unit

#24
20190063830
2019-02-28

Annular divided wall column for an air separation unit having a ring shaped support grid

#25
20190063829
2019-02-28

Annular divided wall column for an air separation unit

#26
20190063828
2019-02-28

Annular divided wall column for an air separation unit

#27
20190063827
2019-02-28

ANNULAR DIVIDED WALL COLUMN FOR AN AIR SEPARATION UNIT

#28
20180372405
2018-12-27

METHOD AND DEVICE FOR OBTAINING PURE NITROGEN AND PURE OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#29
20180347900
2018-12-06

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

#30
20180335256
2018-11-22

Apparatus and process for liquefying gases

#31
20180180357
2018-06-28

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

#32
20180038645
2018-02-08

Plant for producing oxygen by cryogenic air separation

#33
20180010848
2018-01-11

AIR SEPARATION METHOD AND APPARATUS

#34
20180003437
2018-01-04

Method for operating an air separation plant

#35
20180003436
2018-01-04

Method for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#36
20180003435
2018-01-04

Apparatus for operating an air separation plant

#37
20180003434
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air

#38
20180003433
2018-01-04

Method for the production of air gases by the cryogenic separation of air

#39
20180003432
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#40
20170241707
2017-08-24

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

#41
20170234614
2017-08-17

Method for the cryogenic separation of air and air separation plant

#42
20170211882
2017-07-27

PRODUCTION OF AN AIR PRODUCT IN AN AIR SEPARATION PLANT WITH COLD STORAGE UNIT

#43
20170153058
2017-06-01

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

#44
20170131028
2017-05-11

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

#45
20170115053
2017-04-27

Air separation system and method

#46
20170051971
2017-02-23

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

#47
20160265841
2016-09-15

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

#48
20160187059
2016-06-30

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

#49
20160003535
2016-01-07

Method and apparatus for the cryogenic separation of air

#50
20160003534
2016-01-07

Method and apparatus for the cryogenic separation of air

#51
20160003531
2016-01-07

Method and device for generating gaseous compressed nitrogen

#52
20150354888
2015-12-10

Air separation apparatus to produce oxygen and nitrogen through isobaric separation

#53
20150345857
2015-12-03

Air separation system and method

#54
20150241121
2015-08-27

Method and apparatus for separating air by cryogenic distillation

#55
20140260422
2014-09-18

Low temperature air separation process for producing pressurized gaseous product

#56
20140230486
2014-08-21

Method and device for recovering high-pressure oxygen and high-pressure nitrogen

#57
20130205831
2013-08-15

Method and device for obtaining compressed oxygen and compressed nitrogen by the low-temperature separation of air

#58
20130047666
2013-02-28

METHOD AND DEVICE FOR OBTAINING PRESSURIZED NITROGEN AND PRESSURIZED OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#59
20130019634
2013-01-24

AIR SEPARATION METHOD AND APPARATUS

#60
20130000352
2013-01-03

AIR SEPARATION UNIT AND SYSTEMS INCORPORATING THE SAME

#61
20120237421
2012-09-20

Method for Removing CO2 From Exhaust Gases, Such as Exhaust Gases From Plants for Producing Raw Iron or Exhaust Gases From Syngas Plants

#62
20120227442
2012-09-13

System and method for cooling a solvent for gas treatment

#63
20120216520
2012-08-30

Energy storage system using supercritical air

#64
20120131952
2012-05-31

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

#65
20120036892
2012-02-16

AIR SEPARATION METHOD AND APPARATUS

#66
20120036891
2012-02-16

AIR SEPARATION METHOD AND APPARATUS

#67
20110192194
2011-08-11

CRYOGENIC SEPARATION METHOD AND APPARATUS

#68
20110138856
2011-06-16

SEPARATION METHOD AND APPARATUS

#69
20110138855
2011-06-16

Oxygen production method and apparatus

#70
20110100055
2011-05-05

Hybrid Air Separation Method with Noncryogenic Preliminary Enrichment and Cryogenic Purification Based on a Single Component Gas or Liquid Generator

#71
20110067444
2011-03-24

Processes and Device for Low Temperature Separation of Air

#72
20110061385
2011-03-17

Methods and systems for generating power from a turbine using pressurized nitrogen

#73
20110023540
2011-02-03

Method and device for low-temperature air separation

#74
20100242538
2010-09-30

Cryogenic rectification method

#75
20090129941
2009-05-21

METHOD FOR CONTROLLING A PUMP ARRANGEMENT, AND PUMP ARRANGEMENT

#76
20090064714
2009-03-12

PROCESS FOR LOW-TEMPERATURE SEPARATION OF AIR

#77
20090013869
2009-01-15

PROCESS AND DEVICE FOR PRODUCING A PRESSURIZED GASEOUS PRODUCT BY LOW-TEMPERATURE SEPARATION OF AIR

#78
20090007595
2009-01-08

Low temperature air separation process for producing pressurized gaseous product

#79
20080307828
2008-12-18

Air separation method and apparatus

#80
20080245102
2008-10-09

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#81
20080011015
2008-01-17

System and apparatus for providing low pressure and low purity oxygen

#82
20070130992
2007-06-14

Cyrogenic Air Separation Process and Apparatus

#83
20060169000
2006-08-03

Process and apparatus for the separation of air by cryogenic distillation

#84
20060075779
2006-04-13

Process for the cryogenic distillation of air

#85
20060010912
2006-01-19

Low temperature air separation process for producing pressurized gaseous product

#86
20060010909
2006-01-19

Backup system and method for production of pressurized gas

#87
20050193765
2005-09-08

Process for separating air by cryogenic distillation and installation for implementing this process

#88
20050132746
2005-06-23

Cryogenic air separation process and apparatus

#89
20050126221
2005-06-16

Process and apparatus for the separation of air by cryogenic distillation

#90
17558524
2025-12-09

Apparatus and process for liquefying gases