ClassID:

30309

B01D2252/2026 - CPC Classification

Classification description:

Absorbents, i.e. solvents and liquid materials for gas absorption; Organic absorbents; Alcohols or their derivatives; Glycols, diols or their derivatives Polyethylene glycol, ethers or esters thereof, e.g. Selexol

Recent Application in this class:
#1
20260097355
2026-04-09

GAS DEHYDRATOR AND METHOD OF USING SAME

#2
20260055036
2026-02-26

HYDROCARBON RECOVERY UNIT WITH RECYCLE LOOP FOR ADSORBENT BED REGENERATION

#3
20260022013
2026-01-22

INTEGRATED PROCESS FOR REDUCING CO2 EMISSIONS FROM TRANSPORT AND POWER GENERATION

#4
20250122437
2025-04-17

System and Method for Removing Hydrogen Sulfide From Sour Natural Gas

#5
20240408538
2024-12-12

EJECTOR BASE FLARE GAS RECOVERY SYSTEM UTILIZING TRIETHYLENE GLYCOL

#6
20240382899
2024-11-21

Hydrophobic MOF-Based Porous Liquid Carbon Capture Absorbent and Preparation Method Therefor

#7
20240350971
2024-10-24

METHODS FOR OPTIMIZING GAS AND FLUID PROCESSING

#8
20240328934
2024-10-03

MEASUREMENT OF IRON IN GLYCOL AND AMINE IN NATURAL GAS PROCESSING

#9
20240093108
2024-03-21

SYSTEM AND METHOD FOR RECOVERY OF FUEL GAS FROM CRUDE OIL PURIFICATION

#10
20240059634
2024-02-22

HYDROCARBON RECOVERY UNIT WITH RECYCLE LOOP FOR ADSORBENT BED REGENERATION

#11
20240042376
2024-02-08

Water-lean carbon dioxide absorbent and method for capturing carbon dioxide by using same

#12
20230271128
2023-08-31

Method for reducing methane emissions from biogas upgrading

#13
20230264139
2023-08-24

TRI-ETHYLENE GLYCOL CIRCULATION AUTOMATION SYSTEM AND METHOD

#14
20230137305
2023-05-04

Porous Liquid, Self-Replenishing Porous Liquid And Methods Of Making And Using The Same

#15
20220410063
2022-12-29

Non-aqueous solvent COcapture in rotating packed bed

#16
20220089437
2022-03-24

Process for producing pure hydrogen with low steam export

#17
20220072472
2022-03-10

Solvent composition for COcapture and a process mediated thereof

#18
20210380409
2021-12-09

PROCESS FOR SEPARATION OF HYDROGEN AND OXYGEN PRODUCED FROM PHOTOCATALYTIC WATER SPLITTING BY ABSORPTION

#19
20210229068
2021-07-29

Type 3 porous liquids

#20
20210138389
2021-05-13

Process for reducing energy consumption in the regeneration of hybrid solvents

#21
20210138388
2021-05-13

Energy efficient process for separating hydrogen sulfide from gaseous mixtures using a hybrid solvent mixture

#22
20210039040
2021-02-11

Carbon dioxide absorbent and method for separating out carbon dioxide by using same

#23
20210031137
2021-02-04

INTEGRATED ELECTROCHEMICAL CAPTURE AND CONVERSION OF CARBON DIOXIDE

#24
20210001268
2021-01-07

Glycol dehydration and regeneration

#25
20200403260
2020-12-24

Low pressure carbon dioxide removal from the anode exhaust of a fuel cell

#26
20200330919
2020-10-22

Porous liquids

#27
20200298176
2020-09-24

Composition for controlling ambient humidity

#28
20200290871
2020-09-17

Process for separation of hydrogen and oxygen produced from photocatalytic water splitting by absorption

#29
20200238213
2020-07-30

Absorption column having external heat exchange circuit

#30
20200164303
2020-05-28

Absorbent and process for selectively removing hydrogen sulfide

#31
20200147545
2020-05-14

Porous liquid and methods of making and using the same

#32
20200147543
2020-05-14

POROUS LIQUID, SELF-REPLENISHING POROUS LIQUID AND METHODS OF MAKING AND USING THE SAME

#33
20200075981
2020-03-05

Low pressure carbon dioxide removal from the anode exhaust of a fuel cell

#34
20200061574
2020-02-27

Hydrophilized material, hydrophilized member, and gas-liquid contact apparatus in which same is used

#35
20190388829
2019-12-26

Absorbent for selective removal of hydrogen sulfide from a fluid stream

#36
20190366263
2019-12-05

Method and apparatus for purification and treatment of air

#37
20190358585
2019-11-28

Di-substituted siloxane solvents for gas capture

#38
20190300826
2019-10-03

Chemical compositions and method for degassing of processing equipment

#39
20190140296
2019-05-09

Carbon dioxide removal system for anode exhaust of a fuel cell

#40
20190134557
2019-05-09

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

#41
20190118136
2019-04-25

Composition and process for the dehydration of gases

#42
20190112538
2019-04-18

COMPOSITION AND USE THEREOF FOR THE REMOVAL OF ACID GASES FROM HYDROCARBON FLUID STREAMS

#43
20190001259
2019-01-03

Absorption agent, method of manufacturing same, and method for separation and recovery of acidic compound

#44
20190001256
2019-01-03

Processes for gas separation by solvent or absorbent

#45
20180369710
2018-12-27

Thin-film treatment of high-value glycol and amine solvents to remove contaminants

#46
20180327263
2018-11-15

Process and apparatus for treating a sour synthesis gas

#47
20180280868
2018-10-04

Composition and process for gas dehydration

#48
20180264404
2018-09-20

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

#49
20180257022
2018-09-13

ABSORPTION AGENT AND A METHOD FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE

#50
20180221811
2018-08-09

Absorbent for selective removal of hydrogen sulfide from a fluid stream

#51
20180179460
2018-06-28

Configurations and methods of flexible CO2 removal

#52
20180161721
2018-06-14

IMPROVED DIMETHYL ETHYLENE GLYCOL COMPOSITION FOR ACID GAS TREATMENT

#53
20180142175
2018-05-24

FOAM CONTROL OF GAS SWEETENING PROCESSES

#54
20180100129
2018-04-12

Chemical compositions and method for degassing of processing equipment

#55
20180099245
2018-04-12

Gas denitration process and apparatus

#56
20180080441
2018-03-22

Method and system for multi-stage compression of a gas using a liquid

#57
20180078893
2018-03-22

Absorbing solution for separating and capturing carbon dioxide, and method for separating and capturing carbon dioxide in which same is used

#58
20180043308
2018-02-15

Power generation from low-temperature heat by hydro-osmotic processes

#59
20180043302
2018-02-15

Desulfurization and denitration agent

#60
20180043300
2018-02-15

Moisture removal from wet gases

#61
20180017319
2018-01-18

Heavy hydrocarbon removal from lean gas to LNG liquefaction

#62
20170354924
2017-12-14

Process for dehumidifying moist gas mixtures

#63
20170341016
2017-11-30

System and method for treatment of a flue gas

#64
20170282116
2017-10-05

Removal of carbon dioxide from a fluid flow

#65
20170282115
2017-10-05

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

#66
20170173518
2017-06-22

Composite method of trapping carbon dioxide in gas mixture

#67
20170145803
2017-05-25

Compact Subsea Dehydration

#68
20170107163
2017-04-20

Landfill Gas Treatment Method With Polishing and Post-Treatment Enrichment

#69
20170106333
2017-04-20

Method and apparatus for purification and treatment of air

#70
20170050140
2017-02-23

Water control in non-aqueous acid gas recovery systems

#71
20170021304
2017-01-26

Method for removing SOfrom gas using ethylene glycol composite solution

#72
20160375400
2016-12-29

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

#73
20160369674
2016-12-22

Integrated process for COcapture and use in thermal power production cycle

#74
20160288046
2016-10-06

Hybrid solvent formulations for total organic sulfur removal and total acidic gas removal

#75
20160263519
2016-09-15

Process for capturing sulfur dioxide from a gas stream

#76
20160243491
2016-08-25

Method for removing SOfrom gas with compound alcohol-amine solution

#77
20160237007
2016-08-18

Landfill gas treatment method with polishing

#78
20160220946
2016-08-04

Method for removing SOx from gas with modified polyethylene glycol

#79
20160214057
2016-07-28

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

#80
20160193563
2016-07-07

Carbon capture solvents and methods for using such solvents

#81
20160193560
2016-07-07

Optimization of stripper feed configuration for rich/lean solvent regeneration

#82
20160166984
2016-06-16

System and method for treatment of a flue gas

#83
20160122190
2016-05-05

Process for recovering carbon monoxide from catalytic fast pyrolysis product

#84
20160115408
2016-04-28

Apparatus for sweetening and/or dehydrating a hydrocarbon gas, in particular a natural gas

#85
20160097381
2016-04-07

Method and system for multi-stage compression of a gas using a liquid

#86
20160001197
2016-01-07

Thin-film treatment of high-value glycol and amine solvents to remove contaminants

#87
20150361364
2015-12-17

System and method for recovering gas containing COand HS

#88
20150321144
2015-11-12

Method for selective absorption of hydrogen sulfide from a gaseous effluent by a 1,2-bis(2-dimethylaminoethoxy)ethane-based absorbent solution comprising a viscosifying agent

#89
20150273386
2015-10-01

Method and apparatus for removing absorbable gases from pressurized industrial gases contaminated with absorbable gases, without supplying cooling energy

#90
20150251129
2015-09-10

Method and device for stripping a gas from a gas mixture using a venturi ejector

#91
20150166915
2015-06-18

Configurations and methods of flexible CO2 removal

#92
20150165366
2015-06-18

Method for selectively desulfurizing a crude synthesis gas

#93
20150157975
2015-06-11

Absorbent composition for the selective absorption of hydrogen sulfide

#94
20150151241
2015-06-04

PROCESS FOR THE HIGH TEMPERATURE SELECTIVE ABSORPTION OF HYDROGEN SULFIDE

#95
20150133702
2015-05-14

Emissions control of spent air from cumene oxidation

#96
20150128802
2015-05-14

System and method for natural gas dehydration

#97
20150078973
2015-03-19

Heat recovery in absorption and desorption processes

#98
20150005564
2015-01-01

Methods and apparatuses for enhanced absorption of acid gas components from sour feed gas

#99
20150000525
2015-01-01

Apparatuses and methods for removing acid gas from sour gas

#100
20140363360
2014-12-11

Systems and methods for removal of organic sulfides and hydrogen sulfide contaminants from mixed gas streams

#101
20140200373
2014-07-17

Formate based heat stable salt mitigation in physical solvent acid gas absorption processes

#102
20140190350
2014-07-10

Method and device for obtaining gas products

#103
20140005458
2014-01-02

Method and apparatus for sweetening and/or dehydrating a hydrocarbon gas, in particular a natural gas

#104
20130303821
2013-11-14

Systems and methods of inhibiting foam formation using multiphase turbines

#105
20130247766
2013-09-26

System for recovering acid gases from a gas stream

#106
20130056677
2013-03-07

Claus hydrocarbon destruction via staged solvent regeneration

#107
20130032029
2013-02-07

Gas purification configurations and methods

#108
20120272824
2012-11-01

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

#109
20120211348
2012-08-23

Process to remove product alcohol from a fermentation by vaporization under vacuum

#110
20120128561
2012-05-24

Acid gas absorbent composition

#111
20120090464
2012-04-19

Capturing Carbon Dioxide From High Pressure Streams

#112
20120003133
2012-01-05

Air pollution solution to the problem of opacity in coal fired power plant stack emissions

#113
20110315014
2011-12-29

Method for removing SOx from gas using polyethylene glycol

#114
20110284363
2011-11-24

Natural gas dehydration unit with continuously fired reboiler

#115
20110259197
2011-10-27

System for gas purification and recovery with multiple solvents

#116
20110247489
2011-10-13

Ultra-low emission natural gas dehydration unit with continuously fired reboiler

#117
20110009986
2011-01-13

System and method for dynamically controlling odor emission

#118
20100305220
2010-12-02

Method and apparatus for producing liquid biofuel from solid biomass

#119
20100154639
2010-06-24

LIQUID CARBON DIOXIDE ABSORBENT AND METHODS OF USING THE SAME

#120
20100154431
2010-06-24

LIQUID CARBON DIOXIDE ABSORBENT AND METHODS OF USING THE SAME

#121
15271175
2017-10-10

Solvents and methods for gas separation from gas streams