F25J3/04187 - CPC Classification Index

ClassID:

160186 ⎘

F25J3/04187 - 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; Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams

Sub-classes:

F25J3/04193 » {Division of the main heat exchange line in consecutive sections having different functions} 12
F25J3/04218 » {Parallel arrangement of the main heat exchange line in cores having different functions e.g. in low pressure and high pressure cores } 40
F25J3/0423 » {Subcooling of liquid process streams} 52
F25J3/04236 » {Integration of different exchangers in a single core, so-called integrated cores } 21

Recent Application in this class:

20260092735

2026-04-02

AIR SEPARATION UNIT

20240053098

2024-02-15

AIR SEPARATION UNIT

20240035743

2024-02-01

Process and apparatus for recovery of at least nitrogen and argon

20230221069

2023-07-13

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

20230090158

2023-03-23

METHOD AND APPARATUS FOR CRYOGENIC AIR SEPARATION

20230055084

2023-02-23

NITROGEN AND ARGON PRODUCING AIR SEPARATION UNIT

20220316811

2022-10-06

Method for operating a heat exchanger, arrangement with a heat exchanger, and system with a corresponding arrangement

20220099367

2022-03-31

Chiller, air separation system, and related methods

20210381762

2021-12-09

Method for obtaining one or more air products, and air separation unit

#10

20210356206

2021-11-18

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

#11

20200149807

2020-05-14

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

#12

20190331419

2019-10-31

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

#13

20190331418

2019-10-31

System and method for high recovery of nitrogen and argon from a moderate pressure cryogenic air separation unit

#14

20190331417

2019-10-31

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

#15

20190072325

2019-03-07

System and method for recovery of neon and helium from an air separation unit

#16

20190049177

2019-02-14

Apparatus and method for separation of air by cryogenic distillation

#17

20190041130

2019-02-07

Method and device for separating air by cryogenic distillation

#18

20190041129

2019-02-07

Device and method for separating air by cryogenic distillation

#19

20180306497

2018-10-25

Nitrogen production system for producing nitrogen with different purities and nitrogen production process thereof

#20

20170299261

2017-10-19

Liquid nitrogen production

#21

20170211879

2017-07-27

Process and apparatus for producing pressurized gaseous nitrogen by cryogenic separation of air

#22

20170045291

2017-02-16

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

#23

20170030637

2017-02-02

Method for the production of low pressure gaseous oxygen

#24

20170030636

2017-02-02

Apparatus for the production of low pressure gaseous oxygen

#25

20170003073

2017-01-05

METHOD AND APPARATUS FOR SEPARATION AT SUBAMBIENT TEMPERATURE

#26

20160245586

2016-08-25

Method and device for separating air by cryogenic distillation

#27

20160187060

2016-06-30

Method and device for discharging components that are less volatile than oxygen from an air separation plant

#28

20160161180

2016-06-09

Oxygen backup method and system

#29

20160033197

2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#30

20160033196

2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#31

20150241121

2015-08-27

Method and apparatus for separating air by cryogenic distillation

#32

20150188172

2015-07-02

Fuel cell system using natural gas

#33

20150007608

2015-01-08

Air separation method and apparatus with improved argon recovery

#34

20150007607

2015-01-08

Air separation method and apparatus with improved argon recovery

#35

20140260422

2014-09-18

Low temperature air separation process for producing pressurized gaseous product

#36

20140202208

2014-07-24

Method and device for separating a gas mixture by cryogenic distillation

#37

20130192300

2013-08-01

DEVICE FOR LOW-TEMPERATURE SEPARATION OF AIR

#38

20130086942

2013-04-11

Device for the cryogenic separation of air

#39

20120216520

2012-08-30

Energy storage system using supercritical air

#40

20120125045

2012-05-24

Air separation method and apparatus

#41

20110277500

2011-11-17

Nitrogen removal from natural gas

#42

20110197630

2011-08-18

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#43

20110192194

2011-08-11

CRYOGENIC SEPARATION METHOD AND APPARATUS

#44

20110067445

2011-03-24

Method And Apparatus For Separating Air By Cryogenic Distillation

#45

20100011811

2010-01-21

Method and device for separating a gas mixture by cryogenic distillation

#46

20090071191

2009-03-19

Cryogenic air separation process with excess turbine refrigeration

#47

20090007595

2009-01-08

Low temperature air separation process for producing pressurized gaseous product

#48

20080307828

2008-12-18

Air separation method and apparatus

#49

20080223077

2008-09-18

Air separation method

#50

20070095100

2007-05-03

Cryogenic air separation process with excess turbine refrigeration

#51

20060156759

2006-07-20

Apparatus for the low-temperature separation of a gas mixture, in particular air

#52

20060010912

2006-01-19

Low temperature air separation process for producing pressurized gaseous product

#53

20050193765

2005-09-08

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

#54

12800637

2017-08-08

Liquid nitrogen production