ClassID:

160222

F25J3/04418 - 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 dual pressure main column system with thermally overlapping high and low pressure columns

Recent Application in this class:
#1
20210372698
2021-12-02

ENHANCEMENTS TO A DUAL COLUMN NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#2
20180372405
2018-12-27

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

#3
20160123662
2016-05-05

Method and device for oxygen production by low-temperature separation of air at variable energy consumption

#4
20160003536
2016-01-07

METHOD AND DEVICE FOR PRODUCING GASEOUS COMPRESSED OXYGEN HAVING VARIABLE POWER CONSUMPTION

#5
20150354888
2015-12-10

Air separation apparatus to produce oxygen and nitrogen through isobaric separation

#6
20140053601
2014-02-27

Method and apparatus for separating air by cryogenic distillation

#7
20130086942
2013-04-11

Device for the cryogenic separation of air

#8
20130086940
2013-04-11

Air separation plant and process operating by cryogenic distillation

#9
20120297823
2012-11-29

Method and appliance for separating air by cryogenic distillation

#10
20120125044
2012-05-24

FEED COMPRESSION METHOD AND APPARATUS FOR AIR SEPARATION PROCESS

#11
20120118013
2012-05-17

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#12
20110126451
2011-06-02

INTEGRATED PROCESS FOR CONVERTING NATURAL GAS FROM AN OFFSHORE FIELD SITE TO LIQUEFIED NATURAL GAS AND LIQUID FUEL

#13
20110067445
2011-03-24

Method And Apparatus For Separating Air By Cryogenic Distillation

#14
20080289361
2008-11-27

Method and System for Treating an Oxygen-Rich Liquid Bath Collected at the Foot of a Cryogenic Distillation Column

#15
20080115531
2008-05-22

Cryogenic Air Separation Process and Apparatus

#16
20070251267
2007-11-01

Cryogenic Air Separation Process

#17
20060075778
2006-04-13

Method and system for treating an oxygen-rich liquid bath collected at the foot of a cryogenic distillation column

#18
20050210916
2005-09-29

Process and apparatus for the cryogenic separation of air