ClassID:

160183

F25J3/04169 - 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; Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams; Hot end purification of the feed air by adsorption of the impurities

Sub-classes:
Recent Application in this class:
#1
20260063250
2026-03-05

LIQUID AIR ENERGY CONVERSION SYSTEM AND METHOD

#2
20250383144
2025-12-18

AIR SEPARATION METHOD AND PLANT

#3
20250237431
2025-07-24

METHOD AND APPARATUS FOR COMPRESSING A GAS

#4
20250189216
2025-06-12

METHOD AND SYSTEM FOR PROVIDING GASEOUS COMPRESSED OXYGEN

#5
20240426547
2024-12-26

ADSORBER, PURIFICATION SYSTEM, AND PURIFICATION METHOD

#6
20240019205
2024-01-18

FACILITY FOR PRODUCING GASEOUS METHANE BY PURIFYING BIOGAS FROM LANDFILL, COMBINING MEMBRANES AND CRYOGENIC DISTILLATION FOR LANDFILL BIOGAS UPGRADING

#7
20230027070
2023-01-26

Air separation apparatus, adsorber, and method

#8
20220357104
2022-11-10

Fluid recovery process and apparatus for xenon and or krypton recovery

#9
20220196326
2022-06-23

Plant and process for aerial gas separation using a parallelepipedal adsorber

#10
20220074656
2022-03-10

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#11
20220057137
2022-02-24

System for pre-purification of a feed gas stream

#12
20210364233
2021-11-25

Method and apparatus for separating air by cryogenic distillation

#13
20210310732
2021-10-07

Product gas supply quantity adjustment device and air separation apparatus comprising same

#14
20210055049
2021-02-25

Utilization of nitrogen-enriched streams produced in air separation units comprising split-core main heat exchangers

#15
20210055046
2021-02-25

Facility For Producing Gaseous Methane By Purifying Biogas From Landfill, Combining Membranes And Cryogenic Distillation For Landfill Biogas Upgrading

#16
20200149807
2020-05-14

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

#17
20190331419
2019-10-31

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

#18
20190331417
2019-10-31

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

#19
20180178158
2018-06-28

Core-in-shell composite adsorbent for use in PSA prepurifiers

#20
20180008955
2018-01-11

Zeolite adsorbents having a high external surface area and uses thereof

#21
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

#22
20170051971
2017-02-23

Distillation column system and plant for production of oxygen by cryogenic fractionation of air

#23
20160298900
2016-10-13

Process and apparatus for separating air by cryogenic distillation

#24
20160123662
2016-05-05

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

#25
20150283497
2015-10-08

Air compression system and method

#26
20150000335
2015-01-01

Method and apparatus for separating air by cryogenic distillation

#27
20140338425
2014-11-20

Purification of air

#28
20140223960
2014-08-14

Method and device for generating two purified partial air streams

#29
20140223959
2014-08-14

Method and device for the cryogenic decomposition of air

#30
20140202208
2014-07-24

Method and device for separating a gas mixture by cryogenic distillation

#31
20130312427
2013-11-28

Air compression system and method

#32
20130192228
2013-08-01

Process and device for air separation and steam generation in a combined system

#33
20130086940
2013-04-11

Air separation plant and process operating by cryogenic distillation

#34
20120167622
2012-07-05

METHOD AND FACILITY FOR PRODUCING OXYGEN THROUGH AIR DISTILLATION

#35
20120125044
2012-05-24

FEED COMPRESSION METHOD AND APPARATUS FOR AIR SEPARATION PROCESS

#36
20120042781
2012-02-23

Purification Module

#37
20110271833
2011-11-10

Adsorbent Bed Support

#38
20110126706
2011-06-02

Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air

#39
20100319371
2010-12-23

METHOD AND APPARATUS FOR DRYING COMPRESSED GASES

#40
20100011811
2010-01-21

Method and device for separating a gas mixture by cryogenic distillation

#41
20090282866
2009-11-19

Purification method and purification apparatus for feed air in cryogenic air separation

#42
20090282840
2009-11-19

ENERGY STORAGE AND GENERATION

#43
20080000352
2008-01-03

Air prepurification for cryogenic air separation

#44
20070209518
2007-09-13

Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air

#45
20070193446
2007-08-23

Method of restarting feed air purifier

#46
20060272352
2006-12-07

Air separator

#47
20060213224
2006-09-28

Process and installation for the fractionation of air into specific gases

#48
20060210454
2006-09-21

Production of high purity and ultra-high purity gas

#49
20060000223
2006-01-05

Desiccant cartridge