Patents-Review.com
ClassID:

160340 ⎘

F25J2200/34 - CPC Classification

Classification description:

Processes or apparatus using separation by rectification using a side column fed by a stream from the low pressure column

Recent Application in this class:
#1
20250264274
2025-08-21

AIR SEPARATION UNIT

 #2
20250146746
2025-05-08

CRYOGENIC AIR RECTIFICATION SYSTEM, CONTROL UNIT, AIR SEPARATION UNIT AND METHOD OF CRYOGENICALLY SEPARATING AIR

 #3
20240125550
2024-04-18

Process and Apparatus for Improved Recovery of Argon

 #4
20240035743
2024-02-01

Process and apparatus for recovery of at least nitrogen and argon

 #5
20230358468
2023-11-09

PROCESS AND APPARATUS FOR CRYOGENIC SEPARATION OF AIR WITH MIXED GAS TURBINE

 #6
20230221069
2023-07-13

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

 #7
20230168030
2023-06-01

PROCESS FOR CRYOGENIC FRACTIONATION OF AIR, AIR FRACTIONATION PLANT AND INTEGRATED SYSTEM COMPOSED OF AT LEAST TWO AIR FRACTIONATION PLANTS

 #8
20230021328
2023-01-26

HYDROCARBON GAS PROCESSING

 #9
20210372696
2021-12-02

ENHANCEMENTS TO A DUAL COLUMN NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

 #10
20210364233
2021-11-25

Method and apparatus for separating air by cryogenic distillation

 #11
20210364232
2021-11-25

PROCESS FOR SUPPLYING OXYGEN AND/OR NITROGEN AND ALSO ARGON TO A GEOGRAPHIC ZONE

 #12
20200132368
2020-04-30

Apparatus for the distillation of air by cryogenic distillation

 #13
20190368811
2019-12-05

Process and apparatus for separating air using a split heat exchanger

 #14
20190331418
2019-10-31

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

 #15
20190072326
2019-03-07

System and method for recovery of non-condensable gases such as neon, helium, xenon, and krypton from an air separation unit

 #16
20180356152
2018-12-13

System and method for enhanced argon recovery from a feed stream comprising hydrogen, methane, nitrogen and argon

 #17
20180335256
2018-11-22

Apparatus and process for liquefying gases

 #18
20170268821
2017-09-21

System and method for enhanced argon recovery from a feed stream comprising hydrogen, methane, nitrogen and argon

 #19
20160370111
2016-12-22

METHOD FOR PRODUCING AT LEAST ONE AIR PRODUCT, AIR SEPARATION SYSTEM, METHOD AND DEVICE FOR PRODUCING ELECTRICAL ENERGY

 #20
20160187060
2016-06-30

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

 #21
20140053601
2014-02-27

Method and apparatus for separating air by cryogenic distillation

 #22
20120125044
2012-05-24

FEED COMPRESSION METHOD AND APPARATUS FOR AIR SEPARATION PROCESS

 #23
20120118013
2012-05-17

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

 #24
20110067445
2011-03-24

Method And Apparatus For Separating Air By Cryogenic Distillation

 #25
20100071412
2010-03-25

Method and apparatus for producing high purity oxygen

 #26
20090320520
2009-12-31

NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT

 #27
20080096985
2008-04-24

Light ends recovery process for a GTL plant

 #28
20070044507
2007-03-01

Process for the recovery of krypton and/or xenon by low-temperature separation of air

 #29
20060005574
2006-01-12

Method for extracting argon by low-temperature air separation