B01D2252/20473 - CPC Classification Index

ClassID:

30325 ⎘

B01D2252/20473 - CPC Classification

Classification description:

Absorbents, i.e. solvents and liquid materials for gas absorption; Organic absorbents; Amines; Cyclic amines containing an imidazole-ring

Recent Application in this class:

20250018330

2025-01-16

COMPOSITION FOR CARBON DIOXIDE ABSORPTION

20240382899

2024-11-21

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

20240382898

2024-11-21

PROCESS AND SYSTEM FOR CAPTURE OF CARBON DIOXIDE

20230256381

2023-08-17

Process and system for capture of carbon dioxide

20220387926

2022-12-08

COMPOSITIONS AND METHODS FOR CARBON DIOXIDE CAPTURE

20220144634

2022-05-12

Process and plant for producing hydrogen and for separating carbon dioxide from synthesis gas

20210371387

2021-12-02

GAS TREATING SOLUTIONS CONTAINING IMIDAZOLE-AMINE COMPOUNDS AND METHODS OF MAKING THE SAME

20210362090

2021-11-25

Process and system for capture of carbon dioxide

20200047110

2020-02-13

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

#10

20190329176

2019-10-31

Compositions and methods for carbon dioxide capture

#11

20190291044

2019-09-26

Process and system for capture of carbon dioxide

#12

20190118136

2019-04-25

Composition and process for the dehydration of gases

#13

20190099710

2019-04-04

Carbon Dioxide Sorbent and Method for Producing Carbon Dioxide Sorbent

#14

20190027771

2019-01-24

ACID GAS REGENERABLE BATTERY

#15

20180021723

2018-01-25

Gas treating solutions containing imidazole-amine compounds

#16

20170354924

2017-12-14

Process for dehumidifying moist gas mixtures

#17

20170354923

2017-12-14

Process for dehumidifying moist gas mixtures

#18

20170354922

2017-12-14

Process and absorbent for dehumidifying moist gas mixtures

#19

20170305817

2017-10-26

Separations with ionic liquid solvents

#20

20170274319

2017-09-28

Method and apparatus for collecting carbon dioxide from flue gas

#21

20170173518

2017-06-22

Composite method of trapping carbon dioxide in gas mixture

#22

20170080378

2017-03-23

THERMALLY STABLE AMINES FOR CO2 CAPTURE

#23

20170021296

2017-01-26

Filter and method for producing same

#24

20160325225

2016-11-10

Methods and apparatuses for recovering CO

#25

20160175766

2016-06-23

METHOD OF PURIFYING AN IONIC LIQUID AND METHOD OF DEHUMIDIFYING AIR

#26

20160158691

2016-06-09

METHOD OF GAS CAPTURE

#27

20160096784

2016-04-07

Separations with ionic liquid solvents

#28

20150082981

2015-03-26

CAPTURE OF TRIFLUOROMETHANE USING IONIC LIQUIDS

#29

20140301929

2014-10-09

Method and apparatus for collecting carbon dioxide from flue gas

#30

20140131080

2014-05-15

Surface treating composition for copper and copper alloy and utilization thereof

#31

20130327983

2013-12-12

Acid gas scrubbing composition

#32

20130323087

2013-12-05

Compressor and method for compressing technical gases

#33

20120308469

2012-12-06

Carbon dioxide-absorbing solution and method of recovering carbon dioxide

#34

20120297978

2012-11-29

Gas prepurification process

#35

20120294785

2012-11-22

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

#36

20120248372

2012-10-04

N-functionalized imidazole-containing systems and methods of use

#37

20120145001

2012-06-14

Process for reducing contaminants in an industrial fluid stream

#38

20120128561

2012-05-24

Acid gas absorbent composition

#39

20120042778

2012-02-23

Sulfur dioxide absorbent comprising ionic liquid

#40

20110223087

2011-09-15

AMINO COMPOUNDS FOR CARBON DIOXIDE AND SULFUR DIOXIDE REMOVAL

#41

20100326276

2010-12-30

Acid gas scrubbing composition