ClassID:

160219

F25J3/044 - 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 using a single pressure main column system only

Recent Application in this class:
#1
20250271208
2025-08-28

PROCESS AND PLANT FOR PROVIDING A NITROGEN PRODUCT, AN OXYGEN PRODUCT AND A HYDROGEN PRODUCT

#2
20250003678
2025-01-02

Microchannel Distillation Device Fabricated Using Additive Manufacture

#3
20230341181
2023-10-26

NITROGEN GENERATING DEVICE AND NITROGEN GENERATING METHOD

#4
20230125267
2023-04-27

Cryogenic Air Separation Method and Air Separation Unit

#5
20230018749
2023-01-19

Integrated multicomponent refrigerant and air separation process for producing liquid oxygen

#6
20230017256
2023-01-19

INTEGRATED MULTICOMPONENT REFRIGERANT AND AIR SEPARATION PROCESS FOR PRODUCING LIQUID OXYGEN

#7
20220082325
2022-03-17

Multistage liquid storage-type condenser-evaporator and nitrogen production device using the same

#8
20210381759
2021-12-09

Carbon Dioxide Recycle Stream Processing with Ethylene Glycol Dehydrating in an Enhanced Oil Recovery Process

#9
20210278131
2021-09-09

Method and apparatus for adsorptive distillation for cryogenic argon/oxygen separation

#10
20210180736
2021-06-17

Apparatus for the separation or liquefaction of a gas operating at cryogenic temperatures

#11
20200370825
2020-11-26

Method and apparatus for separating air by cryogenic distillation

#12
20200141638
2020-05-07

Carbon dioxide recycle stream processing in an enhanced oil recovery process

#13
20200080773
2020-03-12

CRYOGENIC AIR SEPARATION UNIT WITH FLEXIBLE LIQUID PRODUCT MAKE

#14
20190293348
2019-09-26

Nitrogen production method and nitrogen production apparatus

#15
20180335255
2018-11-22

Device and method for purifying a gas mixture

#16
20180306497
2018-10-25

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

#17
20180257001
2018-09-13

Packed column

#18
20180017321
2018-01-18

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

#19
20170328632
2017-11-16

NGL recovery from a recycle stream having natural gas

#20
20170276428
2017-09-28

Method for the production of air gases by the cryogenic separation of air with improved front end purification and air compression

#21
20170045291
2017-02-16

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

#22
20170038140
2017-02-09

Process and apparatus for the low-temperature fractionation of air

#23
20160223253
2016-08-04

METHOD AND DEVICE FOR SEPARATION AT CRYOGENIC TEMPERATURE

#24
20160216013
2016-07-28

METHOD AND DEVICE FOR SEPARATION AT SUB-AMBIENT TEMPERATURE

#25
20160131425
2016-05-12

System and method for production of crude argon by cryogenic rectification of air

#26
20160003531
2016-01-07

Method and device for generating gaseous compressed nitrogen

#27
20140249656
2014-09-04

Method and apparatus for alarm monitoring

#28
20130298602
2013-11-14

NGL recovery from a recycle stream having natural gas

#29
20130068220
2013-03-21

Systems and methods for generating liquid oxygen for portable use

#30
20130000352
2013-01-03

AIR SEPARATION UNIT AND SYSTEMS INCORPORATING THE SAME

#31
20120263605
2012-10-18

COMPRESSION METHOD AND AIR SEPARATION

#32
20120216520
2012-08-30

Energy storage system using supercritical air

#33
20110259047
2011-10-27

Method and apparatus for producing nitrogen by cryogenic distillation of air

#34
20110146344
2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#35
20110132035
2011-06-09

Method And Apparatus For Providing Nitrogen

#36
20110100055
2011-05-05

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

#37
20100242537
2010-09-30

PROCESS AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#38
20100206004
2010-08-19

Main Exchange Line And Cryogenic Distillation Air Separation Unit Incorporating Such An Exchange Line

#39
20090314031
2009-12-24

Air separation process and apparatus using cryogenic distillation

#40
20090120129
2009-05-14

Method for varying liquid production in an air separation plant with use of a variable speed turboexpander

#41
20090078000
2009-03-26

Method and apparatus for separating air

#42
20080295527
2008-12-04

LNG TANK SHIP WITH NITROGEN GENERATOR AND METHOD OF OPERATING THE SAME

#43
20080216511
2008-09-11

Nitrogen production method and apparatus

#44
20080029381
2008-02-07

Distillation Installation Comprising Columns With Corrugated-Crossed Structured Packings And Method Of Increasing The Capacity Of A Distillation Installation

#45
20070295027
2007-12-27

Plate-fin heat exchanger

#46
20070289726
2007-12-20

Plate-fin heat exchanger having application to air separation

#47
20060260358
2006-11-23

Gas separation liquefaction means and processes

#48
20050211440
2005-09-29

Offshore nitrogen production and injection

#49
20050126220
2005-06-16

Systems and methods for vaporization of liquefied natural gas