ClassID:

29695

B01D53/485 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases; Removing components of defined structure; Sulfur compounds containing only one sulfur compound other than sulfur oxides or hydrogen sulfide

Recent Application in this class:
#1
20260007998
2026-01-08

REGENERABLE SOLVENT MIXTURES FOR ACID-GAS SEPARATION

#2
20250135401
2025-05-01

Gas Circulation Apparatus for Degradation of Sulfur Hexafluoride Gas, and Gas Scrubbing Mechanism

#3
20240124305
2024-04-18

PROCESS FOR SIMULTANEOUS REMOVAL OF HYDROGEN SULFIDE AND HEAVY METALS

#4
20230241547
2023-08-03

REGENERABLE SOLVENT MIXTURES FOR ACID-GAS SEPARATION

#5
20210239318
2021-08-05

Sorbents for coal combustion

#6
20210178316
2021-06-17

Regenerable solvent mixtures for acid-gas separation

#7
20200240632
2020-07-30

Sorbents for coal combustion

#8
20190255463
2019-08-22

System and method for removing sulfur from hydrocarbon fluids

#9
20190093883
2019-03-28

Sorbents for coal combustion

#10
20180345206
2018-12-06

Regenerable solvent mixtures for acid-gas separation

#11
20180312766
2018-11-01

System for the treatment of a contaminated hydrocarbon streams

#12
20180312765
2018-11-01

System for the treatment of mercaptan contaminated hydrocarbon streams

#13
20180245005
2018-08-30

Method for removing amine from a contaminated hydrocarbon streams

#14
20180224121
2018-08-09

Sorbents for coal combustion

#15
20180105754
2018-04-19

Electrolyzed water-amine compositions and methods of use

#16
20170028346
2017-02-02

Control of carbonyl sulfide with sodium borohydride in caustic towers for petroleum/petrochemical processes

#17
20170022081
2017-01-26

Process for treatment of sewage sludge

#18
20160325226
2016-11-10

Desulfurizer for conversion and absorption of high-concentration carbonyl sulfide and a desulfurizer for catalytic conversion and absorption of carbon disulfide and their preparation methods

#19
20160289571
2016-10-06

Electrolized water—amine compositions and methods of use

#20
20160271559
2016-09-22

Methods and Compositions for the Removal of Mercury From Gases

#21
20160207854
2016-07-21

Use of diethylenetriamine as a CS2 scavenger in isoprene production

#22
20160051974
2016-02-25

Desulfurization agent

#23
20160025337
2016-01-28

Sorbents for coal combustion

#24
20150328581
2015-11-19

Regenerable solvent mixtures for acid-gas separation

#25
20150314262
2015-11-05

High capacity solid filtration media

#26
20150266734
2015-09-24

Processes for removing polysulfanes and elemental sulfur from hydrogen sulfide

#27
20150224441
2015-08-13

Method for preventing fouling of exhaust gas flow path of burning equipment and method for removing ammonium hydrogen sulfate contained in exhaust gas of burning equipment

#28
20150152341
2015-06-04

Removal of hydrocarbon contaminants

#29
20150105240
2015-04-16

Method of forming an agent and its use in desulphurisation

#30
20140224158
2014-08-14

Sorbents for coal combustion

#31
20140023573
2014-01-23

Process for controlling carbonyl sulfide produced during chlorination of ores

#32
20130302234
2013-11-14

High capacity solid filtration media

#33
20130089482
2013-04-11

WATER RECOVERY AND ACID GAS CAPTURE FROM FLUE GAS

#34
20130074745
2013-03-28

Sorbents for coal combustion

#35
20130004393
2013-01-03

Synergistic method for enhanced HS/mercaptan scavenging

#36
20120100490
2012-04-26

Sorbents for coal combustion

#37
20110281222
2011-11-17

Sorbents for coal combustion

#38
20110268650
2011-11-03

Methods and apparatus for sulfur recovery from acid gases

#39
20110117001
2011-05-19

SYSTEM AND METHOD FOR REMOVING SULFUR-CONTAINING CONTAMINANTS FROM INDOOR AIR

#40
20100323308
2010-12-23

Sorbents for coal combustion

#41
20100278702
2010-11-04

System and method for removing sulfur from gas stream

#42
20100139482
2010-06-10

Reducing mercury emissions from the burning of coal

#43
20100136439
2010-06-03

DESULFURIZER, HYDROGEN GENERATION APPARATUS, FUEL CELL POWER GENERATING SYSTEM, AND DESULFURIZING AGENT CARTRIDGE

#44
20100104498
2010-04-29

Short-flow process for desulfurization of circulating hydrogen and device for the same

#45
20100072139
2010-03-25

Method of forming an agent and its use in desulphurisation

#46
20090234030
2009-09-17

Process for the removal of contaminants

#47
20090117019
2009-05-07

Reducing mercury emissions from the burning of coal

#48
20080197051
2008-08-21

Desulfurizing Agent for Removing Organic Sulfur Compounds, Preparation Method thereof and Method for Removing Organic Sulfur Compounds Using the Same

#49
20080190852
2008-08-14

Sulfur removal using ferrous carbonate absorbent

#50
20080053920
2008-03-06

Scavenging hydrogen sulfide and/or mercaptans from fluid and gas streams

#51
20070292337
2007-12-20

Method for hydrogen sulphide and/or mercaptans decomposition

#52
20070175798
2007-08-02

Methods and compositions for desulfurization of hydrocarbon fuels

#53
20070157810
2007-07-12

High capacity solid filtration media

#54
20070060475
2007-03-15

Sulfur removal using ferrous carbonate absorbent

#55
20060239881
2006-10-26

Exhaust gas treatment system and exhaust gas treatment method

#56
20060210463
2006-09-21

Reducing mercury emissions from the burning of coal

#57
20050238556
2005-10-27

Method of scavenging hydrogen sulfide and/or mercaptans from fluid and gas streams