F25J3/04448 - CPC Classification Index

ClassID:

160227 ⎘

F25J3/04448 - 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 at least a triple pressure main column system in a double column flowsheet with an intermediate pressure column

Recent Application in this class:

20240035744

2024-02-01

Air separation unit and method for production of nitrogen and argon using a distillation column system with an intermediate pressure kettle column

20220252344

2022-08-11

Air separation device and air separation method

20220090855

2022-03-24

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

20200149806

2020-05-14

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

20190331416

2019-10-31

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

20180038645

2018-02-08

Plant for producing oxygen by cryogenic air separation

20180017322

2018-01-18

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

20170030637

2017-02-02

Method for the production of low pressure gaseous oxygen

20170030636

2017-02-02

Apparatus for the production of low pressure gaseous oxygen

#10

20160370111

2016-12-22

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

#11

20160298900

2016-10-13

Process and apparatus for separating air by cryogenic distillation

#12

20160265841

2016-09-15

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

#13

20160245586

2016-08-25

Method and device for separating air by cryogenic distillation

#14

20160003537

2016-01-07

Air separation method and air separation apparatus

#15

20140223960

2014-08-14

Method and device for generating two purified partial air streams

#16

20140223959

2014-08-14

Method and device for the cryogenic decomposition of air

#17

20130219959

2013-08-29

Process and apparatus for the separation of air by cryogenic distillation

#18

20130205831

2013-08-15

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

#19

20130111948

2013-05-09

Purification of Carbon Dioxide

#20

20130019634

2013-01-24

AIR SEPARATION METHOD AND APPARATUS

#21

20120118006

2012-05-17

Method and apparatus for separating air by cryogenic distillation

#22

20110302956

2011-12-15

Rare gases recovery process for triple column oxygen plant

#23

20110138856

2011-06-16

SEPARATION METHOD AND APPARATUS

#24

20100037656

2010-02-18

Krypton and xenon recovery method

#25

20090178408

2009-07-16

Thermal integration of oxygen plants

#26

20090071191

2009-03-19

Cryogenic air separation process with excess turbine refrigeration

#27

20080245102

2008-10-09

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#28

20080110203

2008-05-15

Cryogenic process system with extended bonnet filter

#29

20070095100

2007-05-03

Cryogenic air separation process with excess turbine refrigeration

#30

20060169000

2006-08-03

Process and apparatus for the separation of air by cryogenic distillation