F25J3/04812 - CPC Classification Index

ClassID:

160277 ⎘

F25J3/04812 - 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; Start-up or control of the process; Details of the apparatus used; Operation, control and regulation of the process; Instrumentation within the process Different modes, i.e. "runs" of operation

Sub-classes:

F25J3/04818 » {Start-up of the process} 17
F25J3/04824 » {Stopping of the process, e.g. defrosting or deriming; Back-up procedures} 34
F25J3/0483 » {Rapid load change of the air fractionation unit} 5
F25J3/04836 » {Variable air feed, i.e. "load" or product demand during specified periods e.g. during periods with high respectively low power costs } 44
F25J3/04842 » {Intermittent process, so-called batch process} 5

Recent Application in this class:

20250271208

2025-08-28

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

20240393043

2024-11-28

METHOD FOR THE LOW-TEMPERATURE SEPARATION OF AIR AND AIR SEPARATION PLANT

20240011706

2024-01-11

METHOD FOR REGULATING A DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

20240003620

2024-01-04

PROCESS AND PLANT FOR CRYOGENIC SEPARATION OF AIR

20230103843

2023-04-06

LOW-PRESSURE NITROGEN TURBINE WITH AIR BOOSTER PARALLEL TO THE BOOSTER AIR COMPRESSOR

20230003446

2023-01-05

METHOD FOR OPERATING AN AIR SEPARATION PLANT, HAVING A DISTILLATION COLUMN SYSTEM, A HEAT EXCHANGER AND AN ADSORBER, AND AIR SEPARATION PLANT

20220205715

2022-06-30

Method and apparatus for transfer of liquid

20190049177

2019-02-14

Apparatus and method for separation of air by cryogenic distillation

20190041130

2019-02-07

Method and device for separating air by cryogenic distillation

#10

20190041129

2019-02-07

Device and method for separating air by cryogenic distillation

#11

20180299195

2018-10-18

Method for controlling production of high pressure gaseous oxygen in an air separation unit

#12

20180017322

2018-01-18

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

#13

20180003436

2018-01-04

Method for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#14

20170299262

2017-10-19

Method and device for variably obtaining argon by means of low-temperature separation

#15

20170211882

2017-07-27

PRODUCTION OF AN AIR PRODUCT IN AN AIR SEPARATION PLANT WITH COLD STORAGE UNIT

#16

20170205141

2017-07-20

Method for producing pressurized gaseous oxygen through the cryogenic separation of air

#17

20170153058

2017-06-01

Method and device for the low-temperature separation of air at variable energy consumption

#18

20170131029

2017-05-11

Method and system for providing supplemental refrigeration to an air separation plant

#19

20170131028

2017-05-11

Method and device for the low-temperature separation of air at variable energy consumption

#20

20170115053

2017-04-27

Air separation system and method

#21

20170030643

2017-02-02

Air separation apparatus

#22

20160187059

2016-06-30

Method and apparatus for obtaining a compressed gas product by cryogenic separation of air

#23

20160123662

2016-05-05

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

#24

20160003535

2016-01-07

Method and apparatus for the cryogenic separation of air

#25

20160003534

2016-01-07

Method and apparatus for the cryogenic separation of air

#26

20150345857

2015-12-03

Air separation system and method

#27

20150241121

2015-08-27

Method and apparatus for separating air by cryogenic distillation

#28

20150226428

2015-08-13

Process for providing an oxygen rich gas and fuel to at least two oxygen rich gas consuming units

#29

20140260422

2014-09-18

Low temperature air separation process for producing pressurized gaseous product

#30

20140202208

2014-07-24

Method and device for separating a gas mixture by cryogenic distillation

#31

20140174123

2014-06-26

Air separation method and apparatus

#32

20130269387

2013-10-17

Process and apparatus for the separation of air by cryogenic distillation

#33

20130205831

2013-08-15

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

#34

20130192301

2013-08-01

Method and system for air separation using a supplemental refrigeration cycle

#35

20130086940

2013-04-11

Air separation plant and process operating by cryogenic distillation

#36

20120280436

2012-11-08

Method of integrating a blast furnace with an air gas separation unit

#37

20120263605

2012-10-18

COMPRESSION METHOD AND AIR SEPARATION

#38

20120125044

2012-05-24

FEED COMPRESSION METHOD AND APPARATUS FOR AIR SEPARATION PROCESS

#39

20110289964

2011-12-01

Separation method and apparatus

#40

20110259046

2011-10-27

Process and apparatus for the separation of air by cryogenic distillation

#41

20110197630

2011-08-18

Process and Apparatus for the Separation of Air by Cryogenic Distillation

#42

20110192193

2011-08-11

Method And Installation For Enriching A Gas Stream With One Of The Components Thereof

#43

20110146343

2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#44

20110120186

2011-05-26

Method and device for producing air gases in a gaseous and liquid form with a high flexibility and by cryogenic distillation

#45

20110011130

2011-01-20

Method And Apparatus For The Production Of Gas From Air In Highly Flexible Gaseous And Liquid Form By Cryogenic Distillation

#46

20100230872

2010-09-16

METHOD OF INTEGRATING A BLAST FURNACE WITH AN AIR GAS SEPARATION UNIT

#47

20100011811

2010-01-21

Method and device for separating a gas mixture by cryogenic distillation

#48

20090241595

2009-10-01

DISTILLATION METHOD AND APPARATUS

#49

20090120129

2009-05-14

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

#50

20090100822

2009-04-23

Integrated gasification combined cycle and the control method

#51

20090007595

2009-01-08

Low temperature air separation process for producing pressurized gaseous product

#52

20080134718

2008-06-12

Separation method and apparatus

#53

20080034790

2008-02-14

Method And Installation For Enriching A Gas Stream With One Of The Components Thereof

#54

20080000266

2008-01-03

System to increase capacity of LNG-based liquefier in air separation process

#55

20070221492

2007-09-27

Method and Installation for Supplying Highly Pure Oxygen By Cryogenic Distillation of Air

#56

20060010912

2006-01-19

Low temperature air separation process for producing pressurized gaseous product

#57

20050138960

2005-06-30

Cryogenic air separation system for producing elevated pressure nitrogen