ClassID:

30463

B01D2256/18 - CPC Classification

Classification description:

Main component in the product gas stream after treatment Noble gases

Recent Application in this class:
#1
20260126246
2026-05-07

PROCESS FOR DEHYDRATION OF A GAS STREAM PRIOR TO CRYOGENIC CO2 FRACTIONATION

#2
20260028359
2026-01-29

OXYGEN-SELECTIVE ADSORPTION FROM AIR WITH A METAL-ORGANIC FRAMEWORK FEATURING OPEN COPPER SITES

#3
20250276275
2025-09-04

PROCESS TO PURIFY HELIUM FROM METHANE WITH INTEGRATED NITROGEN REJECTION USING MEMBRANE TECHNOLOGY

#4
20250276270
2025-09-04

METHOD FOR GAS PURITY IMPROVEMENT USING VACUUM SWING ADSORPTION

#5
20250262593
2025-08-21

APPARATUS AND PROCESS FOR PROVIDING A PRODUCTION GAS OUTPUT FROM AN AIR SEPARATION SYSTEM

#6
20250187919
2025-06-12

HELIUM RECOVERY FROM THE NATURAL GAS IN PETROCHEMICAL PLANTS

#7
20250177925
2025-06-05

Hollow Fiber Membranes and Preparation Method and Use Thereof

#8
20250177903
2025-06-05

GAS PURIFICATION DEVICE

#9
20240343578
2024-10-17

HELIUM SEPARATION AND RECOVERY PROCESS

#10
20240327574
2024-10-03

POLYIMIDE COPOLYMERS AND MEMBRANES, PREPARATION METHODS AND USES THEREOF AS WELL AS SYSTEMS AND METHODS FOR PURIFYING HELIUM GAS

#11
20240228285
2024-07-11

PROCESS FOR PRODUCING VERY HIGH PURITY HELIUM OR HYDROGEN

#12
20240132353
2024-04-25

PROCESS FOR PRODUCING VERY HIGH PURITY HELIUM OR HYDROGEN

#13
20240028056
2024-01-25

GAS APPARATUS

#14
20230277974
2023-09-07

Noble gas recovery system

#15
20230058997
2023-02-23

ORGANOSILICA MEMBRANES, METHODS OF MAKING SAME, AND USES THEREOF

#16
20230043774
2023-02-09

GAS SEPARATION MEMBRANE, GAS SEPARATION MEMBRANE ELEMENT AND GAS PRODUCTION METHOD

#17
20230019514
2023-01-19

Gas purification method and device

#18
20220314163
2022-10-06

METHOD AND ARRANGEMENT FOR RECOVERING HELIUM

#19
20220146196
2022-05-12

SYSTEM AND METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

#20
20220146195
2022-05-12

METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

#21
20220106190
2022-04-07

Method and system for purification of helium using cryogenic, membrane, and adsorption techniques

#22
20220037047
2022-02-03

Diffusion window for radioactive heat source

#23
20220032227
2022-02-03

NOBLE GAS RECOVERY SYSTEM

#24
20220016568
2022-01-20

Gas recovery method

#25
20210291110
2021-09-23

Method and arrangement for recovering a helium product from natural gas by membrane unit

#26
20210291106
2021-09-23

Bulk process gas purification systems and related methods

#27
20210278131
2021-09-09

Method and apparatus for adsorptive distillation for cryogenic argon/oxygen separation

#28
20210138392
2021-05-13

Bandpass filter for separation of a specifically selected gas from a group of gases or an atmosphere

#29
20210069633
2021-03-11

Method and system for extracting pure helium

#30
20210031139
2021-02-04

Helium recovery from gaseous streams

#31
20200376429
2020-12-03

Method for purifying a carrier gas

#32
20200358241
2020-11-12

Gas management system

#33
20200358240
2020-11-12

Gas management system

#34
20200294774
2020-09-17

Collecting and recycling rare gases in semiconductor processing equipment

#35
20200165131
2020-05-28

Process for argon and nitrogen production

#36
20200071338
2020-03-05

Cavitand compositions and methods of use thereof

#37
20190218345
2019-07-18

O-hydroxy-functionalized diamines, polyimides, methods of making each, and methods of use

#38
20190217244
2019-07-18

METHOD FOR OPERATING AN ADSORBER ARRANGEMENT AND ADSORBER ARRANGEMENT

#39
20190204009
2019-07-04

System and method for flexible recovery of argon from a cryogenic air separation unit

#40
20190201835
2019-07-04

Separation process and apparatus for light noble gas

#41
20190193018
2019-06-27

Separation process and apparatus for light noble gas

#42
20190176083
2019-06-13

PROCESS AND PLANT FOR OBTAINING PURE HELIUM

#43
20190107517
2019-04-11

Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products

#44
20190091652
2019-03-28

RHO adsorbent compositions, methods of making and using them

#45
20190091651
2019-03-28

Processes using improved RHO adsorbent compositions

#46
20190091623
2019-03-28

Ultramicro to mesopore frameworks for selective separation and storage of noble gases

#47
20190091622
2019-03-28

Transition group metals for the capture of radioactive xenon

#48
20190083920
2019-03-21

Remote monitoring of pressure swing adsorption units

#49
20190076777
2019-03-14

Gas separation membrane, gas separation membrane module, and gas separation device

#50
20190024247
2019-01-24

Hydrogen system and method of operation

#51
20180354795
2018-12-13

Neon recovering/purifying system and neon recovering/purifying method

#52
20180353898
2018-12-13

Helium recovery from gaseous streams

#53
20180335255
2018-11-22

Device and method for purifying a gas mixture

#54
20180333671
2018-11-22

Xenon collection method and system

#55
20180292130
2018-10-11

Method ad apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption

#56
20180286715
2018-10-04

Substrate transfer device and substrate transfer method

#57
20180244523
2018-08-30

Production of hyperpolarized gas

#58
20180133659
2018-05-17

Carbon molecular sieve membrane for gas separations

#59
20180065078
2018-03-08

Xenon collection method and system

#60
20180050301
2018-02-22

Methods and systems for managing gas purification

#61
20180043298
2018-02-15

Dual layer-coated membranes for gas separations

#62
20170320736
2017-11-09

Combined membrane-pressure swing adsorption method for recovery of helium

#63
20170312682
2017-11-02

Method and industrial plant for obtaining helium from a helium-containing feed gas

#64
20170282117
2017-10-05

Gas separation method

#65
20170190842
2017-07-06

O-hydroxy-functionalized diamines, polyimides, methods of making each, and methods of use

#66
20170189850
2017-07-06

Sour gas feed separations and helium recovery from natural gas using block co-polyimide membranes

#67
20170081477
2017-03-23

Polybenzimidazoles and methods of making and using thereof

#68
20170074528
2017-03-16

Cooling dryer for compressed air and corresponding method

#69
20170045290
2017-02-16

Helium recovery from streams containing helium, carbon dioxide, and at least one of nitrogen and methane

#70
20170030641
2017-02-02

Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system

#71
20170030640
2017-02-02

Method and apparatus for increasing argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system

#72
20170030639
2017-02-02

Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system

#73
20170030638
2017-02-02

Method and apparatus for argon rejection and recovery

#74
20160362298
2016-12-15

Helium enhanced heat transfer in adsorptive liquid or gas phase argon purification processes

#75
20160325996
2016-11-10

Method for recovering and purifying argon gas from silicon single crystal manufacturing apparatus and apparatus for recovering and purifying argon gas

#76
20160279580
2016-09-29

Aromatic alkyl-substituted polyethersulfone and UV-cross-linked aromatic alkyl-substituted polyethersulfone membranes for gas sepratations

#77
20160231051
2016-08-11

Integrated process and apparatus for recovery of helium rich streams

#78
20160228813
2016-08-11

Integrated process and apparatus for recovery of helium rich streams

#79
20160115029
2016-04-28

HELIUM RECOVERY PROCESS AND APPARATUS

#80
20160089655
2016-03-31

PVDF pyrolyzate adsorbent and gas storage and dispensing system utilizing same

#81
20160009618
2016-01-14

Separation, storage, and catalytic conversion of fluids using ITQ-55

#82
20160009563
2016-01-14

Material ITQ-55, method for preparation and use

#83
20160008789
2016-01-14

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#84
20160008756
2016-01-14

Separation and storage of fluids using ITQ-55

#85
20160008754
2016-01-14

Separation and storage of fluids using ITQ-55

#86
20160008753
2016-01-14

Separation and storage of fluids using ITQ-55

#87
20150314244
2015-11-05

Membranes for gas separation synthesized from polyimides containing 4-fluoro-4′,4″-diaminotriphenylmethane

#88
20150196870
2015-07-16

System and method for gas recovery and reuse

#89
20150165390
2015-06-18

Carbon-dioxide-separating membrane

#90
20150151242
2015-06-04

Helium gas separator material and method for producing the same

#91
20150121952
2015-05-07

Production method and production system for natural gas

#92
20150105250
2015-04-16

Metal-organic frameworks for oxygen storage and air separation

#93
20150086475
2015-03-26

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#94
20150044117
2015-02-12

Cavitand compositions and methods of use thereof

#95
20150027202
2015-01-29

Recovery of Xe and other high value compounds

#96
20140373713
2014-12-25

Pressure swing adsorption process

#97
20140345457
2014-11-27

Method for separating gases

#98
20140245782
2014-09-04

Argon production method and apparatus

#99
20140202547
2014-07-24

PVDF pyrolyzate adsorbent and gas storage and dispensing system utilizing same

#100
20140190436
2014-07-10

Metal complex and adsorbent material, storage material, and separating material comprising same

#101
20140033764
2014-02-06

Systems and methods for recovering helium from feed streams containing carbon dioxide

#102
20140000454
2014-01-02

Carbon molecular sieve membrane (CMSM) performance tuning by dual temperature secondary oxygen doping (DTSOD)

#103
20130323014
2013-12-05

Anti-surge speed control

#104
20130294988
2013-11-07

Sorption apparatuses for the production of pure gases

#105
20130112076
2013-05-09

Recovery of Xe and other high value compounds

#106
20130019749
2013-01-24

Method for recovering high-value components from waste gas streams

#107
20120322646
2012-12-20

Blend polymer gas separation membrane

#108
20120308462
2012-12-06

INERT GAS RECOVERY SYSTEM AND METHOD

#109
20120180660
2012-07-19

PVDF pyrolyzate adsorbent and gas storage and dispensing system utilizing same

#110
20120167770
2012-07-05

Adsorbent material and xenon adsorption device using same

#111
20120167765
2012-07-05

Method for recovering xenon

#112
20120079939
2012-04-05

Recovering of xenon by adsorption process

#113
20120073438
2012-03-29

Metal-organic frameworks for Xe/Kr separation

#114
20120067082
2012-03-22

METHOD AND APPARATUS FOR PRODUCING AT LEAST ONE ARGON-ENRICHED FLUID AND AT LEAST ONE OXYGEN-ENRICHED FLUID FROM A RESIDUAL FLUID

#115
20120024152
2012-02-02

Pressure swing adsorption-type gas separation method and separation apparatus

#116
20120012201
2012-01-19

Method and equipment for selectively collecting process effluent

#117
20110308385
2011-12-22

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#118
20110197422
2011-08-18

CONSTRUCTION METHOD FOR LARGE RADIAL ADSORBERS

#119
20110138877
2011-06-16

Helium reclamation systems and methods for a gas chromatograph

#120
20100313750
2010-12-16

Method and system for membrane-based gas recovery

#121
20100251892
2010-10-07

Methods and systems for helium recovery

#122
20100242727
2010-09-30

Safe gas sorbents with high sorption capacity on the basis of lithium alloys

#123
20100133187
2010-06-03

Polybenzoxazole polymer-based mixed matrix membranes

#124
20100115994
2010-05-13

ADSORBENT FOR CARBON MONOXIDE, GAS PURIFICATION METHOD, AND GAS PURIFICATION APPARATUS

#125
20100086459
2010-04-08

Impurity removing apparatus and method of operating the same

#126
20100074820
2010-03-25

Xenon retrieval system and retrieval device

#127
20100024640
2010-02-04

Adsorbent bed repressurization control method

#128
20090320679
2009-12-31

Methods and systems for helium recovery

#129
20090297850
2009-12-03

HOLLOW FIBER, DOPE COMPOSITION FOR FORMING HOLLOW FIBER, AND METHOD OF MAKING HOLLOW FIBER USING THE SAME

#130
20090286904
2009-11-19

POLYAMIC ACIDS DOPE COMPOSITION, PREPARATION METHOD OF HOLLOW FIBER USING THE SAME AND HOLLOW FIBER PREPARED THEREFROM

#131
20090286078
2009-11-19

POLYIMIDES DOPE COMPOSITION, PREPARATION METHOD OF HOLLOW FIBER USING THE SAME AND HOLLOW FIBER PREPARED THEREFROM

#132
20090282982
2009-11-19

Hollow fiber, dope composition for forming hollow fiber, and method of preparing hollow fiber using the same

#133
20090193967
2009-08-06

Removal of gaseous contaminants from argon

#134
20090185969
2009-07-23

HELIUM RECOVERY FROM SEMICONDUCTOR CLUSTER TOOLS

#135
20090126733
2009-05-21

XENON RECOVERY FROM AMBIENT PRESSURE VENTILATOR LOOP

#136
20090107331
2009-04-30

Method and apparatus for pressure swing adsorption

#137
20090104101
2009-04-23

Purification of noble gases using online regeneration of getter beds

#138
20080307961
2008-12-18

CENTRIFUGAL SEPARATION OF RARE GASES

#139
20080300326
2008-12-04

Processing Residue Gas of a Fischer-Tropsch Process

#140
20080257152
2008-10-23

METHODS OF PURIFYING A GAS MIXTURE COMPRISING TWO GASES USING GRANULATED POROUS GLASS

#141
20080256913
2008-10-23

SYSTEMS FOR PURIFYING A GAS MIXTURE COMPRISING TWO GASES USING GRANULATED POROUS GLASS

#142
20070251391
2007-11-01

High capacity gas filter system with indicator

#143
20070209508
2007-09-13

Combined cryogenic distillation and PSA for argon production

#144
20070199446
2007-08-30

Production of carbon monoxide-free hydrogen and helium from a high-purity source

#145
20060278077
2006-12-14

Gas separation method using adsorbent

#146
20060236863
2006-10-26

Design and operation methods for pressure swing adsorption systems

#147
20060236719
2006-10-26

Gas stream purification method utilizing electrically driven oxygen ion transport

#148
20060210454
2006-09-21

Production of high purity and ultra-high purity gas

#149
20060174764
2006-08-10

Integration of rapid cycle pressure swing adsorption with refinery process units (hydroprocessing, hydrocracking, etc.)

#150
20060107831
2006-05-25

Xenon recovery system

#151
20050284297
2005-12-29

Gas purification system with an integrated hydrogen sorption and filter assembly

#152
20050257685
2005-11-24

Continuous feed three-bed pressure swing adsorption system

#153
20050229783
2005-10-20

Method for purification of lens gases used in photolithography

#154
20050220689
2005-10-06

Method for treating a flow of gas and gas treatment system

#155
20050199122
2005-09-15

Gas separating method

#156
20050132881
2005-06-23

Indexing rotary dual valve for pressure swing adsorption systems

#157
20050011353
2005-01-20

Method for the recovery and recycle of helium and chlorine

#158
20050005771
2005-01-13

Modular pressure swing adsorption process and apparatus

#159
20050000355
2005-01-06

Gas separation method and device

#160
18894605
2025-02-18

Ionized gas separation arrangement

#161
17854307
2025-09-23

Separation of krypton gas from xenon gas using natural clinoptilolite

#162
15449895
2019-11-19

Modular cooling chamber for manifold of gaseous electrolysis apparatus with helium permeable element therefor

#163
15049704
2017-07-18

Method for argon production via cold pressure swing adsorption

#164
15049634
2017-06-06

Modified chabazite adsorbent compositions, methods of making and using them