ClassID:

160273

F25J3/04781 - 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 Pressure changing devices, e.g. for compression, expansion, liquid pumping

Recent Application in this class:
#1
20260146790
2026-05-28

METHOD FOR INCREASING PRODUCTION FLEXIBILITY OF AN AIR SEPARATION UNIT

#2
20250198303
2025-06-19

Cryogenic Expansion Turbine with Magnetic Bearings

#3
20240377130
2024-11-14

LIQUEFIED GAS SUPPLY SYSTEM AND AIR SEPARATION UNIT COMPRISING SAME

#4
20240353173
2024-10-24

ULTRA-HIGH-PURITY OXYGEN PRODUCTION METHOD AND ULTRA-HIGH-PURITY OXYGEN PRODUCTION APPARATUS

#5
20230341181
2023-10-26

NITROGEN GENERATING DEVICE AND NITROGEN GENERATING METHOD

#6
20230043513
2023-02-09

PROCESS AND PLANT FOR PROVISION OF OXYGEN PRODUCT

#7
20220074657
2022-03-10

Method for starting up a cryogenic air separation unit and associated air separation unit

#8
20210199378
2021-07-01

METHOD AND APPARATUS FOR IMPROVING EFFICIENCY OF A FRONT-END PURIFICATION UNIT OF AN AIR SEPARATION PLANT

#9
20210164729
2021-06-03

Apparatus and process for liquefying gases

#10
20200333070
2020-10-22

System and method for supplying backup production in air separation device

#11
20200182543
2020-06-11

Gas production system

#12
20200149808
2020-05-14

AIR SEPARATION METHOD AND APPARATUS

#13
20200080773
2020-03-12

CRYOGENIC AIR SEPARATION UNIT WITH FLEXIBLE LIQUID PRODUCT MAKE

#14
20190234415
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#15
20190234414
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#16
20190234413
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#17
20190049177
2019-02-14

Apparatus and method for separation of air by cryogenic distillation

#18
20180335256
2018-11-22

Apparatus and process for liquefying gases

#19
20180051215
2018-02-22

Method for removing nitrogen from a hydrocarbon-rich fraction

#20
20180010848
2018-01-11

AIR SEPARATION METHOD AND APPARATUS

#21
20180003435
2018-01-04

Apparatus for operating an air separation plant

#22
20180003434
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air

#23
20180003433
2018-01-04

Method for the production of air gases by the cryogenic separation of air

#24
20170115053
2017-04-27

Air separation system and method

#25
20170030643
2017-02-02

Air separation apparatus

#26
20160231053
2016-08-11

Process and apparatus for producing gaseous oxygen by cryogenic distillation of air

#27
20160033197
2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#28
20160033196
2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#29
20150345857
2015-12-03

Air separation system and method

#30
20150000335
2015-01-01

Method and apparatus for separating air by cryogenic distillation

#31
20140174123
2014-06-26

Air separation method and apparatus

#32
20140093396
2014-04-03

Gas compressor control system preventing vibration damage

#33
20130269387
2013-10-17

Process and apparatus for the separation of air by cryogenic distillation

#34
20130230412
2013-09-05

Solution for controlling a turbo compressor

#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
20120260693
2012-10-18

COMPRESSION METHOD AND AIR SEPARATION

#39
20120125044
2012-05-24

FEED COMPRESSION METHOD AND APPARATUS FOR AIR SEPARATION PROCESS

#40
20120118006
2012-05-17

Method and apparatus for separating air by cryogenic distillation

#41
20110318160
2011-12-29

Turboexpander and method for using moveable inlet guide vanes at compressor inlet

#42
20110289964
2011-12-01

Separation method and apparatus

#43
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

#44
20110067444
2011-03-24

Processes and Device for Low Temperature Separation of Air

#45
20100251766
2010-10-07

Refrigeration generation method and system

#46
20100230872
2010-09-16

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

#47
20100154432
2010-06-24

Method and system for operating a combined cycle power plant

#48
20100024640
2010-02-04

Adsorbent bed repressurization control method

#49
20090249830
2009-10-08

Process For Producing Variable Gaseous Nitrogen And Variable Gaseous Oxygen By Air Distillation

#50
20090241595
2009-10-01

DISTILLATION METHOD AND APPARATUS

#51
20090205368
2009-08-20

Distillation method and apparatus

#52
20090129941
2009-05-21

METHOD FOR CONTROLLING A PUMP ARRANGEMENT, AND PUMP ARRANGEMENT

#53
20090120129
2009-05-14

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

#54
20090025364
2009-01-29

Multi-Stage Compressor, Air-Separating Apparatus Comprising Such a Compressor, and Installation

#55
20080134718
2008-06-12

Separation method and apparatus

#56
20070170624
2007-07-26

Method for renovating a combined blast furnace and air/gas separation unit system

#57
20060254312
2006-11-16

Method and installation for producing, in gaseous form and under high pressure, at least one fluid chosen from oxygen, argon and nitrogen by cryogenic distillation of air

#58
20060037357
2006-02-23

Process and system for obtaining a gaseous pressure product by the cryogenic separation of air

#59
17558524
2025-12-09

Apparatus and process for liquefying gases