Patents-Review.com
ClassID:

30312 ⎘

B01D2252/20405 - CPC Classification

Classification description:

Absorbents, i.e. solvents and liquid materials for gas absorption; Organic absorbents; Amines Monoamines

Recent Application in this class:
#1
20260138079
2026-05-21

SYSTEMS FOR REMOVING CARBON DIOXIDE FROM A CARBON DIOXIDE CONTAINING GAS, AND RELATED METHODS

 #2
20260115649
2026-04-30

ACIDIC GAS-ABSORBING LIQUID AND ACIDIC GAS REDUCTION METHOD

 #3
20260091345
2026-04-02

Methods And Compositions for Carbon Capture

 #4
20260061361
2026-03-05

COMBUSTOR

 #5
20250339809
2025-11-06

Acid Gas Scrubbing Methods Featuring Amine Phase Separation for Hydrogen Sulfide Capture

 #6
20250303352
2025-10-02

METHODS FOR ELIMINATING GAS FLARING DURING AMINE SWEETENING FACILITY SHUTDOWNS

 #7
20250288947
2025-09-18

METHOD FOR PRODUCING ACIDIC GAS ABSORBENT AND ACIDIC GAS ABSORBENT PRODUCED BY THE METHOD

 #8
20250229219
2025-07-17

CARBON DIOXIDE CAPTURE AGENT CONTAINING TWO TYPES OF AMINE COMPOUNDS AND CARBON DIOXIDE CAPTURE METHOD USING THE SAME

 #9
20250170519
2025-05-29

METHOD AND APPARATUS FOR RECOVERING ABSORBING AGENTS IN ACID GAS TREATMENT

 #10
20250145472
2025-05-08

METHOD FOR GENERATING CARBON DIOXIDE

 #11
20250065257
2025-02-27

Method and System for Removing Acid Gas from Ethylene Cracking Gas

 #12
20250058270
2025-02-20

INTEGRATED ROTATING PACKED BED ADSORBER, COOLER, AND AMINE ENTRAINMENT UNIT

 #13
20250025831
2025-01-23

SYSTEM AND PROCESS OF CAPTURING CARBON DIOXIDE FROM FLUE GASES

 #14
20250025829
2025-01-23

Carbon Capture

 #15
20250018327
2025-01-16

CO2 CAPTURE AND DESORPTION USING CORE-SHELL CATALYSTS

 #16
20250002379
2025-01-02

SYSTEMS AND METHODS FOR TREATING CONTAMINATED WATER AS A SOURCE FOR HYDROGEN

 #17
20240424428
2024-12-26

METHOD AND SYSTEM FOR TREATMENT OF LIQUID MATERIAL TO RECOVER A GASEOUS EFFLUENT

 #18
20240399290
2024-12-05

Gas Capture System Comprising a Heat Pump Using a Liquid Sorbent With Combined Temperature and Pressure Swings

 #19
20240350966
2024-10-24

Method For Recovery of Chemically Absorbed CO2 With Low Energy Consumption

 #20
20240325976
2024-10-03

Electrochemical Metal Removal

 #21
20240325965
2024-10-03

DIRECT AIR CAPTURE OF CARBON DIOXIDE

 #22
20240294379
2024-09-05

PROCESS AND PLANT FOR PRODUCING PURE HYDROGEN BY STEAM REFORMING WITH REDUCED CARBON DIOXIDE EMISSIONS

 #23
20240216894
2024-07-04

COMPOSITE CATALYST FOR CARBON DIOXIDE ABSORBENT REGENERATION

 #24
20240182387
2024-06-06

PROCESS AND EQUIPMENT FOR PRODUCING GLYCOLS FROM CARBOHYDRATES AND HYDROGEN WITH REACTOR OFF-GAS TREATMENT AND HYDROGEN PRODUCTION

 #25
20240109825
2024-04-04

Tail gas utilization for mixed alcohols production

 #26
20240100473
2024-03-28

CARBON DIOXIDE ABSORBER

 #27
20240042377
2024-02-08

Composite amine absorbent, removal unit, and removal method

 #28
20240042375
2024-02-08

PROCESS FOR REMOVAL OF ACID GASES FROM A FLUID STREAM

 #29
20240017205
2024-01-18

TWO STEP AMINE ABSORPTION PROCESS FOR REMOVAL CO2/H2S FROM BIOGAS

 #30
20230330596
2023-10-19

System and process of capturing carbon dioxide from flue gases

 #31
20230330590
2023-10-19

METHOD AND SYSTEM FOR MAINTAINING SOLVENT QUALITY IN GAS TREATING SYSTEMS

 #32
20230321597
2023-10-12

Method and Scavenging Mixture for Removing Hydrogen Sulfide from a Gas Stream

 #33
20230321589
2023-10-12

AQUEOUS CO2 ABSORBENT COMPRISING 2-AMINO-2-METHYL-1-PROPANOL AND 3-AMINOPROPANOL OR 2-AMINO-2-METHYL-1-PROPANOL AND 4-AMINOBUTANOL

 #34
20230226483
2023-07-20

Acid Gas Scrubbing Methods Featuring Amine Phase Separation for Hydrogen Sulfide Capture

 #35
20230106908
2023-04-06

Method and apparatus for recovering absorbing agents in acid gas treatment

 #36
20230078337
2023-03-16

Methods And Compositions for Carbon Capture

 #37
20230001348
2023-01-05

NON-AQUEOUS SOLVENT FOR REMOVING ACIDIC GAS FROM A PROCESS GAS STREAM FOR HIGH PRESSURE APPLICATIONS

 #38
20220410063
2022-12-29

Non-aqueous solvent COcapture in rotating packed bed

 #39
20220387926
2022-12-08

COMPOSITIONS AND METHODS FOR CARBON DIOXIDE CAPTURE

 #40
20220370952
2022-11-24

METHOD AND SYSTEM FOR FILTERING FORMALDEHYDE FROM INOOR AIR

 #41
20220355245
2022-11-10

Formic acid formation from a carbon dioxide source

 #42
20220193601
2022-06-23

ABSORBENT FOR CO2 OR H2S, OR BOTH OF CO2 AND H2S, AND DEVICE AND METHOD FOR REMOVING CO2 OR H2S, OR BOTH OF CO2 AND H2S

 #43
20220161224
2022-05-26

Acid gas absorbent in biogas and biogas purification system using the same

 #44
20220144734
2022-05-12

Tail gas utilization for mixed alcohols production

 #45
20220096996
2022-03-31

Composite amine absorbent, and device and method for removing CO2 or H2S, or both of CO2 and H2S

 #46
20220080348
2022-03-17

Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus

 #47
20210402368
2021-12-30

Hydrogen sulfide adsorbent in biogas and biogas purification system using the same

 #48
20210387934
2021-12-16

Methanol production process with higher carbon utilization by COrecycle

 #49
20210370391
2021-12-02

Additively manufactured carbon dioxide scrubber

 #50
20210339223
2021-11-04

COMPOSITE HYDROGELS FOR ADSORPTION OF ORGANIC ACID ANIONS & METAL IONS FROM LEAN MDEA

 #51
20210322923
2021-10-21

System and process of capturing carbon dioxide from flue gases

 #52
20210220771
2021-07-22

POST-COMBUSTION CO2 CAPTURE WITH HEAT RECOVERY AND INTEGRATION

 #53
20210138390
2021-05-13

Combined acid gas removal and water filtration system

 #54
20210106944
2021-04-15

ABSORBENT COMPOSITIONS INCLUDING AMINO-SILOXANES

 #55
20210031138
2021-02-04

Absorbent liquid for CO2 and/or H2S, and apparatus and method using same

 #56
20210023503
2021-01-28

PORTABLE CARBON DIOXIDE ABSORPTION SYSTEM

 #57
20210016226
2021-01-21

Gas treatment method and gas treatment apparatus

 #58
20210016222
2021-01-21

FOULING MITIGATION IN ALKANOLAMINE TREATING SYSTEMS

 #59
20200376427
2020-12-03

Method and apparatus for recovering absorbing agents in acid gas treatment

 #60
20200360854
2020-11-19

Sulfur recovery operation with improved carbon dioxide recovery

 #61
20200289974
2020-09-17

System and method for removing acid gas from a sour gas stream

 #62
20200277186
2020-09-03

Thermal stage and reduction absorption sulfur recovery process

 #63
20200269187
2020-08-27

Absorbent and process for selectively removing hydrogen sulfide

 #64
20200207703
2020-07-02

Hydrogen sulfide scavengers

 #65
20200171423
2020-06-04

Acid gas removal system for removing acidic gases from gaseous hydrocarbons

 #66
20200164303
2020-05-28

Absorbent and process for selectively removing hydrogen sulfide

 #67
20200086267
2020-03-19

AQUEOUS CO2 ABSORBENT COMPRISING 2-AMINO-2-METHYL-1-PROPANOL AND 3-AMINOPROPANOL OR 2-AMINO-2-METHYL-1-PROPANOL AND 4-AMINOBUTANOL

 #68
20200086266
2020-03-19

Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus

 #69
20200086265
2020-03-19

Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus

 #70
20200061526
2020-02-27

Carbon dioxide recovery

 #71
20200048090
2020-02-13

Enriched acid gas for sulfur recovery

 #72
20190388829
2019-12-26

Absorbent for selective removal of hydrogen sulfide from a fluid stream

 #73
20190381448
2019-12-19

Process for removal of acid gases from a fluid stream

 #74
20190375993
2019-12-12

OIL SOLUBLE SULFIDE SCAVENGERS WITH LOW SALT CORROSION AND METHODS OF MAKING AND USING THESE SCAVENGERS

 #75
20190329176
2019-10-31

Compositions and methods for carbon dioxide capture

 #76
20190321773
2019-10-24

Methods and systems for improving the energy efficiency of carbon dioxide capture

 #77
20190314756
2019-10-17

METHOD AND SYSTEM FOR FILTERING FORMALDEHYDE FROM INOOR AIR

 #78
20190308135
2019-10-10

Portable carbon dioxide absorption system

 #79
20190299293
2019-10-03

Additively manufactured carbon dioxide scrubber

 #80
20190299292
2019-10-03

Additively manufactured carbon dioxide scrubber

 #81
20190291045
2019-09-26

1-Amino-2-Methyl-2-Propanol Derivatives

 #82
20190282954
2019-09-19

Membrane contactor

 #83
20190270047
2019-09-05

Method and apparatus for continuous removal of carbon dioxide

 #84
20190240613
2019-08-08

System and method for removing acid gas from a sour gas stream

 #85
20190232247
2019-08-01

Composite 3D-printed reactors for gas absorption, purification, and reaction

 #86
20190224614
2019-07-25

Combined acidic gas capture and water extraction process

 #87
20190193025
2019-06-27

Acid component removal device, acid component removal method, and acid gas removal device

 #88
20190151794
2019-05-23

Composite amine absorbing solution, and device and method for removing CO2 or H2S or both

 #89
20190134557
2019-05-09

Removal of hydrogen sulphide and carbon dioxide from a stream of fluid

 #90
20190119197
2019-04-25

Hydrogen sulfide scavengers

 #91
20190083922
2019-03-21

Carbon dioxide absorbent and apparatus of separating and recovering carbon dioxide

 #92
20190060779
2019-02-28

Systems and methods for enhancing amine agent recovery with a reclaimer

 #93
20190055125
2019-02-21

Enriched acid gas for sulfur recovery

 #94
20190027771
2019-01-24

ACID GAS REGENERABLE BATTERY

 #95
20190001261
2019-01-03

CO2 RECOVERY DEVICE AND CO2 RECOVERY METHOD

 #96
20180369750
2018-12-27

Portable carbon dioxide absorption system

 #97
20180369743
2018-12-27

Polyamines, synthesis process thereof and use of same for the selective elimination of HS from a gaseous effluent comprising CO

 #98
20180353896
2018-12-13

Methods and systems for improving the energy efficiency of carbon dioxide capture

 #99
20180339265
2018-11-29

SYSTEM FOR TIME-SHIFTING POST-COMBUSTION CO2 CAPTURE

 #100
20180333673
2018-11-22

1-amino-2-methyl-2-propanol derivatives

 #101
20180326353
2018-11-15

Emissions reduction for CO2 capture

 #102
20180318753
2018-11-08

Apparatus and method for absorbing a component from a gas mixture using rotating packed bed unit

 #103
20180311611
2018-11-01

Absorbent for the selective removal of hydrogen sulfide

 #104
20180290101
2018-10-11

Aqueous alkanolamine composition and process for the selective removal of hydrogen sulfide from gaseous mixtures

 #105
20180280867
2018-10-04

Absorbent liquid for COand/or HS, and apparatus and method using same

 #106
20180272268
2018-09-27

Composite 3D-printed reactors for gas absorption, purification, and reaction

 #107
20180257022
2018-09-13

ABSORPTION AGENT AND A METHOD FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE

 #108
20180243681
2018-08-30

Carbon dioxide recovery

 #109
20180223204
2018-08-09

Gas separation by vaporized compound

 #110
20180221811
2018-08-09

Absorbent for selective removal of hydrogen sulfide from a fluid stream

 #111
20180185782
2018-07-05

Hydrogen sulfide scavenging additive compositions, and medium comprising the same

 #112
20180148331
2018-05-31

Apparatus and combined process for carbon dioxide gas separation

 #113
20180105754
2018-04-19

Electrolyzed water-amine compositions and methods of use

 #114
20180099248
2018-04-12

Carbon dioxide recovery using an absorption column in combination with osmotic filters

 #115
20180015409
2018-01-18

Method and apparatus for recovering absorbing agents in acid gas treatment

 #116
20180002240
2018-01-04

Sustainable supply of recipe components for ceramic composites produced by hydrothermal liquid phase sintering

 #117
20170348630
2017-12-07

Process designs for increased selectivity and capacity for hydrogen sulfide capture from acid gases

 #118
20170320008
2017-11-09

Process For Selectively Removing Hydrogen Sulphide From Gaseous Mixtures And Use Of A Thioalkanol For Selectively Removing Hydrogen Sulphide

 #119
20170312681
2017-11-02

PROCESS AND APPARATUS FOR SEPARATING ENTRAINED AMINES FROM A GAS STREAM

 #120
20170282115
2017-10-05

Removal of hydrogen sulphide and carbon dioxide from a stream of fluid

 #121
20170252695
2017-09-07

Regenerable solvent mixtures for acid-gas separation

 #122
20170232380
2017-08-17

Method of development and use of catalyst-functionalized catalytic particles to increase the mass transfer rate of solvents used in acid gas cleanup

 #123
20170216763
2017-08-03

COmass transfer enhancement of aqueous amine solvents by particle additives

 #124
20170197176
2017-07-13

Absorbent solution containing a mixture of 1,2-bis-(2-dimethylaminoethoxy)-ethane and of 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, and method of removing acid compounds from a gaseous effluent

 #125
20170197175
2017-07-13

Energy-efficient extraction of acid gas from flue gases

 #126
20170190640
2017-07-06

Separation method and separation apparatus

 #127
20170183996
2017-06-29

Gas separation process using membranes with permeate sweep to remove COfrom combustion exhaust

 #128
20170173527
2017-06-22

THERMAL STAGE AND REDUCTION ABSORPTION SULFUR RECOVERY PROCESS

 #129
20170173522
2017-06-22

Carbon dioxide separation and capture apparatus and method of controlling operation of carbon dioxide separation and capture apparatus

 #130
20170173518
2017-06-22

Composite method of trapping carbon dioxide in gas mixture

 #131
20170145125
2017-05-25

Component separations in polymerization

 #132
20170144102
2017-05-25

Sterically hindered amines and associated methods

 #133
20170136406
2017-05-18

Absorber

 #134
20170128856
2017-05-11

Device for extraction of pollutants by multichannel tubular membrane

 #135
20170088505
2017-03-30

Hydrogen sulfide scavengers

 #136
20170081603
2017-03-23

Gas separation by vaporized compound

 #137
20170080386
2017-03-23

Process for COcapture using micro-particles comprising biocatalysts

 #138
20170056817
2017-03-02

GAS DESORPTION

 #139
20170050141
2017-02-23

Apparatus for removing an acid gas from a gas stream

 #140
20170050140
2017-02-23

Water control in non-aqueous acid gas recovery systems

 #141
20170036192
2017-02-09

Method for regenerating a used sorbent having a gas adsorbate adsorbed thereto

 #142
20170021305
2017-01-26

Aqueous absorbent composition for enhanced removal of hydrogen sulfide from gaseous mixtures and method for using the same

 #143
20170014760
2017-01-19

CARBON DIOXIDE RECOVERY

 #144
20160325225
2016-11-10

Methods and apparatuses for recovering CO

 #145
20160297729
2016-10-13

Ethylene recovery by absorption

 #146
20160296882
2016-10-13

Acidic gas absorbing agent, method for removing acidic gas and apparatus for removing acidic gas

 #147
20160256815
2016-09-08

Method of recovering absorption solvent in butadiene production process by oxidative dehydrogenation

 #148
20160236140
2016-08-18

Inner surface features for co-current contractors

 #149
20160193563
2016-07-07

Carbon capture solvents and methods for using such solvents

 #150
20160193562
2016-07-07

Sterically hindered amines and associated methods

 #151
20160158690
2016-06-09

Reversible light driven gas absorbent solution and process

 #152
20160152745
2016-06-02

Component separations in polymerization

 #153
20160059178
2016-03-03

System and method for desorption of acid gas from an absorption liquid

 #154
20160023966
2016-01-28

Ethylene recovery by absorption

 #155
20150367283
2015-12-24

Emissions reduction for COcapture

 #156
20150306538
2015-10-29

AN AQUEOUS CO2 ABSORBENT COMPRISING 2-AMINO-2-METHYL-1-PROPANOL AND 3-AMINOPROPANOL OR 2-AMINO-2-METHYL-1-PROPANOL AND 4-AMINOBUTANOL

 #157
20150267027
2015-09-24

Component separations in polymerization

 #158
20150137393
2015-05-21

Gas separation device and packing

 #159
20150132207
2015-05-14

Complex amine absorbent, and device and method for removing one or both of COand HS

 #160
20150110695
2015-04-23

Aqueous alkanolamine composition and process for the removal of acid gases from gaseous mixtures

 #161
20150007728
2015-01-08

Aqueous solution which efficiently absorbs and recovers carbon dioxide in exhaust gas, and method for recovering carbon dioxide using same

 #162
20140367612
2014-12-18

Organic amine decarbonization solutions

 #163
20140352532
2014-12-04

Continuously stirred tank reactor absorber and flash tank stripper system

 #164
20140349366
2014-11-27

Process for desorbing COcapture from ion-rich mixture with micro-particles comprising biocatalysts

 #165
20140309471
2014-10-16

Sweetening of natural gas

 #166
20140290483
2014-10-02

Process for removing acidic compounds from a gaseous effluent with an absorbent solution based on dihydroxyalkylamines bearing severe steric hindrance of the nitrogen atom

 #167
20140275693
2014-09-18

Auxiliary acid and sour gas treatment system and method

 #168
20140131902
2014-05-15

Gas separation apparatus and packing

 #169
20140094360
2014-04-03

Reactive extraction process for regeneration of amine-based solvents used for carbon dioxide capture

 #170
20140056687
2014-02-27

Integrated method of driving a COcompressor of a CO-capture system using waste heat from an internal combustion engine on board a mobile source

 #171
20140030177
2014-01-30

High cyclic capacity amines for high efficiency COscrubbing processes

 #172
20130302233
2013-11-14

Process for removing mercaptans from a gas stream

 #173
20130280155
2013-10-24

Sterically hindered amines and associated methods

 #174
20130251600
2013-09-26

Emissions reduction for COcapture

 #175
20130164200
2013-06-27

Regenerable solvent mixtures for acid-gas separation

 #176
20130164199
2013-06-27

Regenerable solvent mixtures for acid-gas separation

 #177
20130108532
2013-05-02

Catalytic method and apparatus for separating a gaseous component from an incoming gas stream

 #178
20130071307
2013-03-21

Method and device for the absorptive removal of carbon dioxide from biogas

 #179
20120321538
2012-12-20

Gas separation by vaporized compound

 #180
20120308469
2012-12-06

Carbon dioxide-absorbing solution and method of recovering carbon dioxide

 #181
20120308452
2012-12-06

Absorbent solution containing a breakdown inhibitor derived from thiazole or from oxazole and absorption process for acid compounds contained in a gaseous effluent

 #182
20120308451
2012-12-06

Acid gas absorbent, acid gas removal method, and acid gas removal device

 #183
20120304538
2012-12-06

Configuration of contacting zones in vapor-liquid contacting apparatuses

 #184
20120294785
2012-11-22

Acidic gas absorbent, acidic gas removal device, and acidic gas removal method

 #185
20120292565
2012-11-22

Absorbent solution containing a breakdown inhibitor derived from pyrimidine or from triazine and absorption process for acid compounds contained in a gaseous effluent

 #186
20120288429
2012-11-15

Bi-directional reactor and supported monoethenalamine for COseparation

 #187
20120285319
2012-11-15

Sorbent regeneration in a heated hollow-fiber assembly

 #188
20120280176
2012-11-08

Method and Composition for Removal of Mercaptans from Gas Streams

 #189
20120272824
2012-11-01

METHOD FOR DRYING NATURAL GAS BY THE JOINT COOLING OF SOLVENT AND NATURAL GAS

 #190
20120269707
2012-10-25

Use of 2-(3-aminopropoxy)ethan-1-ol as an absorbent to remove acidic gases

 #191
20120238006
2012-09-20

Process for removal of carbon dioxide from a gas stream

 #192
20120232232
2012-09-13

Ethylene recovery by absorption

 #193
20120232231
2012-09-13

Component separations in polymerization

 #194
20120222426
2012-09-06

INTEGRATED GAS TURBINE, SAGD BOILER AND CARBON CAPTURE

 #195
20120171105
2012-07-05

Method for improving total energy demand in a post-combustion carbon capture process with ionic absorbent

 #196
20120171095
2012-07-05

Liquid carbon dioxide absorbents, methods of using the same, and related systems

 #197
20120160099
2012-06-28

Carbon dioxide separation method and apparatus

 #198
20120152120
2012-06-21

PRODUCTION OF CARBON DIOXIDE FROM SYNTHESIS GAS

 #199
20120122195
2012-05-17

Process for COcapture using micro-particles comprising biocatalysts

 #200
20120095181
2012-04-19

Ethylene separation

 #201
20120070353
2012-03-22

Process For Separating Off Acidic Gases By Means Of Metal-Organic Frameworks Impregnated With Amines

 #202
20120009114
2012-01-12

Gas pressurized separation column and process to generate a high pressure product gas

 #203
20110305616
2011-12-15

Configuration of contacting zones in vapor liquid contacting apparatuses

 #204
20110232490
2011-09-29

Chemical compounds for the removal of carbon dioxide from gases

 #205
20110229393
2011-09-22

Methods for deacidizing gaseous mixtures by phase enhanced absorption

 #206
20110192215
2011-08-11

Analytical System for In-Line Analysis of Post-Combustion Capture Solvents

 #207
20110171091
2011-07-14

Method for UV photolytic separation of pollutant gases from an emission stream

 #208
20110107916
2011-05-12

System for recovering carbon dioxide from flue gas

 #209
20110079151
2011-04-07

COrecovery system and COabsorption liquid

 #210
20110052458
2011-03-03

Self-Concentrating Absorbent for Acid Gas Separation

 #211
20110008229
2011-01-13

Sulfur recovery plant tail gas treatment process

 #212
20100319540
2010-12-23

Removal of acid gases by means of an absorbent comprising a stripping aid

 #213
20100229723
2010-09-16

Method and absorbent composition for recovering a gaseous component from a gas stream

 #214
20100105551
2010-04-29

Absorbents for separating acidic gases

 #215
20100095851
2010-04-22

METHODS AND SYSTEMS FOR DEACIDIZING GASEOUS MIXTURES

 #216
20090263302
2009-10-22

Self-concentrating absorbent for acid gas separation

 #217
20090205496
2009-08-20

Method for inhibiting amine degradation during COcapture from a gas stream

 #218
20080078292
2008-04-03

Absorbing solution, method and device for absorbing COor HS or both

 #219
18954659
2025-11-25

Systems for removing carbon dioxide from a carbon dioxide containing gas, and related methods

 #220
18391161
2024-04-09

Selective desulfurization method implemented based on high gravity reactor

 #221
17391688
2022-11-29

Carbon dioxide capture system

 #222
15814114
2018-10-09

Ionic liquid-based hydrogen sulfide and mercaptan scavengers