ClassID:

30331

B01D2252/2053 - CPC Classification

Classification description:

Absorbents, i.e. solvents and liquid materials for gas absorption; Organic absorbents; Other organic compounds not covered by  -  Other nitrogen compounds

Recent Application in this class:
#1
20240390839
2024-11-28

Chemical Additives For Direct Air Carbon Capture

#2
20240367146
2024-11-07

HUMIDITY CONTROL AGENT AND DEVICE

#3
20240278169
2024-08-22

PROCESS FOR THE REMOVAL OF ACID GASES, SPECIFICALLY CO2, FROM GASEOUS MIXTURES CONTAINING THEM THROUGH THE USE OF ABSORBENT COMPOSITIONS INCLUDING CYCLIC UREAS AS A PHYSICAL SOLVENT

#4
20240002742
2024-01-04

REMOVAL OF ACID GASES FROM GASEOUS MIXTURES CONTAINING THEM

#5
20240001291
2024-01-04

METHODS FOR ABSORPTION AND DESORPTION OF CARBON DIOXIDE

#6
20230390694
2023-12-07

EXHAUST GAS TREATMENT FACILITY

#7
20230294042
2023-09-21

Cyclopropeneimines for capture and transfer of carbon dioxide

#8
20230294041
2023-09-21

Cyclopropeneimines for capture and transfer of carbon dioxide

#9
20230053826
2023-02-23

PROCESS AND PLANT FOR GAS MIXTURES CONTAINING ACID GAS TREATMENT

#10
20220316996
2022-10-06

RUTHENIUM OXIDE GAS ABSORBENT LIQUID, ANALYSIS METHOD FOR RUTHENIUM OXIDE, TRAP DEVICE, AND QUANTITATIVE ANALYZER

#11
20220056361
2022-02-24

Removal of sour gases from gas mixtures containing them

#12
20210179926
2021-06-17

METHODS, PRODUCTS & USES RELATING TO SCAVENGING OF ACIDIC SULFIDE SPECIES

#13
20210087057
2021-03-25

Storage medium and method for separating, storing and transporting chlorine from chlorine-containing gases

#14
20200324242
2020-10-15

Smoke capturing system and method

#15
20200129957
2020-04-30

Cucurbituril-polyethylenimine-silica complex, preparation method thereof and carbon dioxide absorbent comprising same

#16
20200024526
2020-01-23

Functionalized aldehydes as HS and mercaptan scavengers

#17
20190300826
2019-10-03

Chemical compositions and method for degassing of processing equipment

#18
20190151794
2019-05-23

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

#19
20190001256
2019-01-03

Processes for gas separation by solvent or absorbent

#20
20180345209
2018-12-06

SCAVENGERS

#21
20180345207
2018-12-06

Guanidine compounds for carbon dioxide capture

#22
20180216013
2018-08-02

Functionalized aldehydes as HS and mercaptan scavengers

#23
20180100129
2018-04-12

Chemical compositions and method for degassing of processing equipment

#24
20170341016
2017-11-30

System and method for treatment of a flue gas

#25
20170282122
2017-10-05

System and method of recovering carbon dioxide from a stream of gas

#26
20170217873
2017-08-03

Method and apparatus for producing dicyanobenzene

#27
20170198226
2017-07-13

BIOGAS PURIFICATION BY TERPENE ABSORPTION

#28
20170173525
2017-06-22

Process for the removal of contaminants from flue gas streams

#29
20170050169
2017-02-23

Compressed Absorbing Medium

#30
20170029343
2017-02-02

SULFUR ENHANCED NITROGEN PRODUCTION FROM EMISSION SCRUBBING

#31
20160346734
2016-12-01

Compounds for the capture of carbon dioxide from gaseous mixtures and subsequent release, related process and plant

#32
20160336045
2016-11-17

Humidity control for enclosure

#33
20160244467
2016-08-25

Amino-siloxane composition and methods of using the same

#34
20160220951
2016-08-04

Water extracting device

#35
20160214058
2016-07-28

Methods and systems for COseparation

#36
20160207854
2016-07-21

Use of diethylenetriamine as a CS2 scavenger in isoprene production

#37
20160206992
2016-07-21

Gas sweetening solvents containing quaternary ammonium salts

#38
20160166984
2016-06-16

System and method for treatment of a flue gas

#39
20160030881
2016-02-04

Process for capturing CO2 from a CO2-containing gas stream using a thermoresponsive copolymer

#40
20150336045
2015-11-26

Carbon dioxide absorbent based on amine having nitrile functional group, and carbon dioxide absorption method and separation method using same

#41
20150329563
2015-11-19

Gas separation material using metal complex and gas separation method

#42
20150241059
2015-08-27

Air pollution control system and air pollution control method

#43
20150104366
2015-04-16

Amino-siloxane composition and methods of using the same

#44
20150056114
2015-02-26

Compound including oxalate, carbon dioxide absorbent including the same, method of preparing carbon dioxide absorbent and method of removing carbon dioxide

#45
20130323148
2013-12-05

INTEGRATED CO2 PHASE CHANGING ABSORBENT FOR CO2 SEPARATION SYSTEM

#46
20130230440
2013-09-05

Removing acid gases from water vapour-containing fluid streams

#47
20130059365
2013-03-07

Target gas capture

#48
20130020738
2013-01-24

Compressed growing medium

#49
20120207659
2012-08-16

Methods and systems for COseparation

#50
20120103038
2012-05-03

Compressed growing medium

#51
20120027664
2012-02-02

CARBON DIOXIDE CAPTURE SYSTEM AND METHODS OF CAPTURING CARBON DIOXIDE

#52
20120027663
2012-02-02

Carbon dioxide capture system and methods of capturing carbon dioxide

#53
20110220551
2011-09-15

Method of scavenging hydrogen sulfide and/or mercaptans using triazines

#54
20110079151
2011-04-07

COrecovery system and COabsorption liquid

#55
20100016152
2010-01-21

Aldehyde reducing compositons

#56
20100016151
2010-01-21

Aldehyde reducing coating

#57
20090205249
2009-08-20

Compressed growing medium

#58
20060107589
2006-05-25

Compressed growing medium

#59
15045201
2018-05-22

Sulfur tolerant hydrophobic ionic liquid solvent