ClassID:

30307

B01D2252/2023 - 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

Sub-classes:
Recent Application in this class:
#1
20260124574
2026-05-07

INCREASING GAS ABSORPTION INTO LIQUID

#2
20260108839
2026-04-23

MODULAR GAS PROCESSING SYSTEM

#3
20260097362
2026-04-09

METHOD FOR EXTRACTING CALCIUM, METHOD FOR FIXING CARBON DIOXIDE, AND CARBON DIOXIDE FIXATION APPARATUS

#4
20250376913
2025-12-11

APPARATUS AND METHOD FOR STORING CARBON DIOXIDE

#5
20250296036
2025-09-25

COMPOSITIONS AND METHODS FOR CARBON DIOXIDE CAPTURE

#6
20250290004
2025-09-18

NATURAL GAS PROCESSING WITH CO-GENERATION OF POWER

#7
20250090997
2025-03-20

REMOVAL OF MERCURY IN A GAS DEHYDRATION PROCESS USING THERMALLY STABLE CHEMICAL ADDITIVES

#8
20250051671
2025-02-13

NATURAL GAS PROCESSING AND METHODS AND SYSTEMS RELATED THERETO

#9
20250044815
2025-02-06

SYSTEMS AND PROCESSES OF ELIMINATING START-UP FLARING IN A GAS PLANT

#10
20240328681
2024-10-03

Using Carbon Dioxide From A Direct Air Capture System As A Low Global Warming Car And Industrial Refrigerant

#11
20240325976
2024-10-03

Electrochemical Metal Removal

#12
20240309282
2024-09-19

CONTROL SCHEME FOR AMINE CONTACTOR

#13
20240279563
2024-08-22

Generate Hydrogen as Fuel at Natural Gas Processing Plant to Reduce Carbon Dioxide Emissions

#14
20240157282
2024-05-16

MODULAR GAS PROCESSING SYSTEM

#15
20240002742
2024-01-04

REMOVAL OF ACID GASES FROM GASEOUS MIXTURES CONTAINING THEM

#16
20230213247
2023-07-06

Using carbon dioxide from a direct air capture system as a low global warming car and industrial refrigerant

#17
20230174880
2023-06-08

Control scheme for amine contactor

#18
20230023829
2023-01-26

METHOD FOR REGENERATING AN AQUEOUS SOLUTION OF MEG CONTAINING SALTS WITH PURGE TREATMENT

#19
20230017553
2023-01-19

Method for minimizing fouling, corrosion, and solvent degradation in low-temperature refinery and natural gas processes

#20
20230015857
2023-01-19

METHOD TO REDUCE BOTH VOCS AND CO2 IN LIVING AND WORKING SPACES

#21
20220401877
2022-12-22

Reducing acid gases from streams

#22
20220266194
2022-08-25

MOBILE REFRIGERATION UNIT

#23
20220212140
2022-07-07

HUMIDITY CONTROL DEVICE

#24
20220143547
2022-05-12

REMOVAL OF MERCURY IN A GAS DEHYDRATION PROCESS USING THERMALLY STABLE CHEMICAL ADDITIVES

#25
20210387136
2021-12-16

Gas dehydration

#26
20210229068
2021-07-29

Type 3 porous liquids

#27
20210069638
2021-03-11

Gas purification using a co-axial co-current contactor

#28
20210069634
2021-03-11

Compact regeneration of liquid desiccant

#29
20200384409
2020-12-10

Glycol dehydration units and methods

#30
20200330919
2020-10-22

Porous liquids

#31
20200298172
2020-09-24

METHODS OF PURIFYING INDUSTRIAL GAS STREAMS

#32
20200289974
2020-09-17

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

#33
20200129919
2020-04-30

Process for dehydrating a hydrocarbon-based gas

#34
20200122082
2020-04-23

Device and method to dry a damp compressed gas and a compressor installation provided with such a device

#35
20200024526
2020-01-23

Functionalized aldehydes as HS and mercaptan scavengers

#36
20200024387
2020-01-23

Polymers containing aromatic dicarboxylic acid

#37
20200016528
2020-01-16

Process for separating hydrogen sulfide from gaseous mixtures using a hybrid solvent mixture

#38
20190366263
2019-12-05

Method and apparatus for purification and treatment of air

#39
20190299151
2019-10-03

Process for the removal of carbon dioxide and heavy hydrocarbons

#40
20190240613
2019-08-08

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

#41
20190224618
2019-07-25

High hydrocarbon recovery membrane plus solvent based system

#42
20190211278
2019-07-11

Development of a novel high temperature stable scavenger for removal of hydrogen sulfide

#43
20190193020
2019-06-27

Reducing acid gases from streams

#44
20190184383
2019-06-20

CATALYST INTENDED FOR DESULFURIZATION/DEMERCAPTANIZATION/DEHYDRATION OF GASEOUS HYDROCARBONS

#45
20190161689
2019-05-30

Device, process, and catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons

#46
20190118136
2019-04-25

Composition and process for the dehydration of gases

#47
20190111380
2019-04-18

Process for selective removal of acid gases from fluid streams using a hybrid solvent mixture

#48
20180369710
2018-12-27

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

#49
20180251421
2018-09-06

Beta-hydroxylated tertiary diamines, a process for their synthesis and their use for eliminating acid compounds a gaseous effluent

#50
20180223204
2018-08-09

Gas separation by vaporized compound

#51
20180221815
2018-08-09

METHOD AND SYSTEM FOR CARBON DIOXIDE GAS DEHYDRATION

#52
20180216013
2018-08-02

Functionalized aldehydes as HS and mercaptan scavengers

#53
20180200699
2018-07-19

Device, process, and catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons

#54
20180200666
2018-07-19

Method and apparatus for continuous removal of carbon dioxide vapors from gases

#55
20180154304
2018-06-07

Method and apparatus for dehydration of a hydrocarbon gas

#56
20180126297
2018-05-10

Device for extracting water from the environment

#57
20180104643
2018-04-19

Composition and apparatus for purifying nitrogen-oxide-containing gases

#58
20180078896
2018-03-22

Device for the extraction of water from the environment

#59
20180044598
2018-02-15

Method of reducing hydrogen sulfide levels in gaseous mixtures using triazines

#60
20180030360
2018-02-01

Antifouling and hydrogen sulfide scavenging compositions and methods

#61
20180017319
2018-01-18

Heavy hydrocarbon removal from lean gas to LNG liquefaction

#62
20180001259
2018-01-04

Method and system for treatment of a gas stream that contains carbon dioxide

#63
20180001255
2018-01-04

Solvent and method for removing acid gases from a gaseous mixture

#64
20170368529
2017-12-28

System and method for pH control of lean MEG product from MEG regeneration and reclamation packages

#65
20170361265
2017-12-21

Configurations and methods of high pressure acid gas removal in the production of ultra-low sulfur gas

#66
20170355920
2017-12-14

Process, method and system for removal of mercury in a gas dehydration process

#67
20170254187
2017-09-07

System and method for compressing and conditioning hydrocarbon gas

#68
20170232379
2017-08-17

Glycol Dehydration Unit

#69
20170217861
2017-08-03

Method and Apparatus for Separation of Colloidal Suspension from a Solution of Organic Compound, such as Monoethylene Glycol

#70
20170216812
2017-08-03

Integrated process to recover high quality native COfrom a sour gas comprising HS and CO

#71
20170203229
2017-07-20

Process for recovering processing liquids from streams containing alkaline earth metal salts

#72
20170183587
2017-06-29

POLYHYDRIC ALCOHOL COMPOSITIONS FOR GAS DEHYDRATION

#73
20170182452
2017-06-29

Capped carbon filter assembly

#74
20170144102
2017-05-25

Sterically hindered amines and associated methods

#75
20170106333
2017-04-20

Method and apparatus for purification and treatment of air

#76
20170081603
2017-03-23

Gas separation by vaporized compound

#77
20170081275
2017-03-23

NOVEL BETA-HYDROXYLATED TERTIARY DIAMINES, A PROCESS FOR THEIR SYNTHESIS AND THEIR USE FOR ELIMINATING ACID COMPOUNDS A GASEOUS EFFLUENT

#78
20170036192
2017-02-09

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

#79
20170021305
2017-01-26

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

#80
20170021304
2017-01-26

Method for removing SOfrom gas using ethylene glycol composite solution

#81
20170021303
2017-01-26

Natural Gas Processing for Reduction in BTX Emissions and Energy Efficiency

#82
20160348018
2016-12-01

GLYCOL REGENERATOR VAPOR RECOVERY UNIT

#83
20160332112
2016-11-17

Variable capacity multiple-leg packed separation column system and method of operation

#84
20160312141
2016-10-27

Development of a novel high temperature stable scavenger for removal of hydrogen sulfide

#85
20160310888
2016-10-27

Method for removing SOfrom gas using polyol composite solution

#86
20160271558
2016-09-22

Hybrid solvent formulations for selective HS removal

#87
20160250591
2016-09-01

Catalytic COdesorption for ethanolamine based COcapture technologies

#88
20160199774
2016-07-14

Separating impurities from a fluid stream using multiple co-current contactors

#89
20160193563
2016-07-07

Carbon capture solvents and methods for using such solvents

#90
20160184767
2016-06-30

Configurations and methods of high pressure acid gas removal in the production of ultra-low sulfur gas

#91
20160115408
2016-04-28

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

#92
20160114285
2016-04-28

Method for purifying gas using liquid marbles

#93
20160101403
2016-04-14

System and method for pH control of lean MEG product from MEG regeneration and reclamation packages

#94
20160001197
2016-01-07

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

#95
20150343370
2015-12-03

Variable capacity multiple-leg packed separation column

#96
20150151246
2015-06-04

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

#97
20150144477
2015-05-28

Flexible process for treating solvent, such as monoethylene glycol, used in natural gas extraction

#98
20150139877
2015-05-21

Process for purifying gaseous mixtures containing acidic gases

#99
20150135954
2015-05-21

Method and apparatus for circulating a glycol stream, and method of producing a natural gas product stream

#100
20150133702
2015-05-14

Emissions control of spent air from cumene oxidation

#101
20150132195
2015-05-14

System for absorbing and separating acid gases

#102
20150114226
2015-04-30

High performance hydrophobic solvent, carbon dioxide capture

#103
20150013539
2015-01-15

Offshore processing method and system

#104
20140182457
2014-07-03

Sub-atmospheric pressure gas scrubbers

#105
20140137597
2014-05-22

Process and apparatus for cooling and compressing a wet gas rich in carbon dioxide

#106
20130341564
2013-12-26

Capture mass composed of elemental sulphur deposited on a porous support for capturing heavy metals

#107
20130340616
2013-12-26

System for removal of organic contaminants from bio-gas for renewable energy production

#108
20130240047
2013-09-19

Low temperature transport and storage of amine gas treatment solutions

#109
20130227879
2013-09-05

Extraction of water from air

#110
20130074693
2013-03-28

Water-saving liquid-gas conditioning system

#111
20130055729
2013-03-07

Configurations and methods for high pressure acid gas removal in the production of ultra-low sulfur gas

#112
20120321538
2012-12-20

Gas separation by vaporized compound

#113
20120279847
2012-11-08

Method of cleaning and recycling glycol-tainted water from de-icing operations at airports

#114
20120272824
2012-11-01

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

#115
20120238793
2012-09-20

In-line device for gas-liquid contacting, and gas processing facility employing co-current contactors

#116
20120070353
2012-03-22

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

#117
20110101117
2011-05-05

Humidity control device

#118
20110052458
2011-03-03

Self-Concentrating Absorbent for Acid Gas Separation

#119
20110033370
2011-02-10

System and method for sulfur recovery

#120
20090277770
2009-11-12

Method of cleaning and recycling glycol-tainted water from de-icing operations at airports

#121
20090263302
2009-10-22

Self-concentrating absorbent for acid gas separation

#122
18938267
2026-01-13

Carbon dioxide absorption with liquid