ClassID:

30330

B01D2252/205 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20260114681
2026-04-30

CLEANING APPARATUS CONFIGURATIONS

#2
20260091367
2026-04-02

DEHUMIDIFYING HYDROGEL WITH NANOMATERIALS

#3
20260084095
2026-03-26

Hydrophobic Alkyl-Ester Physical Solvents for CO2 Removal from H2 Produced from Synthesis Gas

#4
20260054218
2026-02-26

SEPARATION OF CARBON DIOXIDE AND OTHER ACID GASES FROM FLUE GAS USING PHYSICAL SOLVENTS AND ALKALI

#5
20260007998
2026-01-08

REGENERABLE SOLVENT MIXTURES FOR ACID-GAS SEPARATION

#6
20250288951
2025-09-18

CARBON DIOXIDE ADSORPTION-DESORPTION DEVICE

#7
20250250500
2025-08-07

LPG SYNTHESIS FROM BIO-BASED SOURCES

#8
20250249394
2025-08-07

Rapid Hygroscopic Atmospheric Water Generator for a Constructed Environment

#9
20250229216
2025-07-17

PROCESS FOR TREATING A GASEOUS EFFLUENT FROM PYROLYTIC DECOMPOSITION OF A POLYMER

#10
20250171352
2025-05-29

METHOD AND PLANT FOR TREATING RAW-MEAL IN A CEMENT CLINKER MANUFACTURING PROCESS

#11
20250144557
2025-05-08

CARBON CAPTURE COMPOSITION AND SYSTEM

#12
20250135400
2025-05-01

CRYOGENIC SEPARATION OF CARBON DIOXIDE, SULFUR OXIDES, AND NITROGEN OXIDES FROM FLUE GAS

#13
20250115534
2025-04-10

ETHANE RECOVERY PROCESS AND ALKYLATION PROCESS WITH ETHANE RECOVERY

#14
20250065258
2025-02-27

CARBON DIOXIDE ABSORBER

#15
20250002433
2025-01-02

METHOD AND APPARATUS FOR RECOVERING UNREACTED MONOMER

#16
20240350964
2024-10-24

RECYCLING METHOD FOR DIRECT AIR CAPTURE DEVICE

#17
20240271046
2024-08-15

PROCESS FOR HYDROTREATING A FEED STREAM COMPRISING A BIORENEWABLE FEEDSTOCK WITH TREATMENT OF AN OFF-GAS STREAM

#18
20240228898
2024-07-11

Compositions and Methods for Scavenging Hydrogen Sulfide

#19
20240228897
2024-07-11

Compositions and Methods for Scavenging Hydrogen Sulfide

#20
20240226364
2024-07-11

METHOD AND DEVICE FOR CONTROLLING ODOR AND VAPOR

#21
20240226363
2024-07-11

Method and device for controlling odor and vapor

#22
20240182799
2024-06-06

METHOD AND DEVICE FOR TREATING OIL GAS

#23
20240091702
2024-03-21

CHEMICAL SEQUESTERING OF CO2, NOx and SO2

#24
20240042382
2024-02-08

USE OF SILICA NANOPARTICLES WITH GLYOXAL FOR H2S SCAVENGING

#25
20240009590
2024-01-11

Screening assembly and process for screening polymer from an effluent stream at reduced levels of polymer entrainment

#26
20230391691
2023-12-07

Recovery of light olefins from dry hydrocarbon gas from refinery and petrochemical production processes for production of alkylate

#27
20230357659
2023-11-09

Compositions and methods for scavenging hydrogen sulfide

#28
20230330624
2023-10-19

USE OF CARBOXYLATE COMPOUND AS ABSORBENT FOR CAPTURING CARBON DIOXIDE

#29
20230257326
2023-08-17

Mitigating naturally occurring radioactive material in oxidative dehydrogenation

#30
20230256412
2023-08-17

PLANT EXTRACT BASED ETHYLENE ABSORBER AND A PROCESS FOR PREPARING THE SAME

#31
20230241547
2023-08-03

REGENERABLE SOLVENT MIXTURES FOR ACID-GAS SEPARATION

#32
20230182068
2023-06-15

Ammonia Removal in Contaminated Liquid and Gas Streams

#33
20230110965
2023-04-13

Process for hydrotreating a feed stream comprising a biorenewable feedstock with treatment of an off-gas stream

#34
20230103803
2023-04-06

PROCESS FOR RECOVERING ACRYLIC ACID

#35
20220389337
2022-12-08

Method and apparatus for recovering C2—C4 components in methane-containing industrial gas

#36
20220306948
2022-09-29

METHOD FOR PROCESSING A GASEOUS COMPOSITION

#37
20220298088
2022-09-22

Process of preparing alcohols

#38
20220297053
2022-09-22

C1—C8 carboxylic acid salt solution for the absorption of CO

#39
20220274049
2022-09-01

Chemical sequestering of CO, NOand SO

#40
20220203298
2022-06-30

Cryogenic separation of carbon dioxide, sulfur oxides, and nitrogen oxides from flue gas

#41
20220194878
2022-06-23

Recovery of light olefins from dry hydrocarbon gas from refinery and petrochemical production processes for production of alkylate

#42
20220152582
2022-05-19

Polymer, oxygen absorber using same, and curable composition

#43
20210387135
2021-12-16

Process for treating a gaseous effluent from pyrolytic decomposition of a polymer

#44
20210371760
2021-12-02

Method and device for treating oil gas

#45
20210292257
2021-09-23

ETHANE RECOVERY PROCESS AND ALKYLATION PROCESS WITH ETHANE RECOVERY

#46
20210245090
2021-08-12

Scavenging system including at least one mixed acetal compound to remove hydrogen sulfide and/or mercaptans from a fluid stream

#47
20210229068
2021-07-29

Type 3 porous liquids

#48
20210178316
2021-06-17

Regenerable solvent mixtures for acid-gas separation

#49
20210171450
2021-06-10

Process for separating an organic isocyanate

#50
20210122694
2021-04-29

Method for producing acetic acid

#51
20210093994
2021-04-01

Light gas separation from hydrocarbons for variable composition feed streams

#52
20210077947
2021-03-18

Method and an apparatus for separating chlorine gas from a gaseous anode outlet stream of an electrochemical reactor

#53
20210039040
2021-02-11

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

#54
20200406187
2020-12-31

Method for Purifying a Gaseous, Liquid or Aerosol Composition Containing at Least One Polluant

#55
20200330919
2020-10-22

Porous liquids

#56
20200269185
2020-08-27

Chemical sequestering of CO2, NOx and SO2

#57
20200225131
2020-07-16

Ultrasound-assisted solvent extraction of analytes from porous membrane packed solid samples

#58
20200206677
2020-07-02

C1-C8 carboxylic acid salt solution for the absorption of CO

#59
20200188837
2020-06-18

Light gas separation from hydrocarbons for variable composition feed streams

#60
20200157439
2020-05-21

Synergized acetals composition and method for scavenging sulfides and mercaptans

#61
20200086266
2020-03-19

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

#62
20200024526
2020-01-23

Functionalized aldehydes as HS and mercaptan scavengers

#63
20200024225
2020-01-23

Cleaning device for gas flows from isocyanate production

#64
20190388829
2019-12-26

Absorbent for selective removal of hydrogen sulfide from a fluid stream

#65
20190366263
2019-12-05

Method and apparatus for purification and treatment of air

#66
20190358689
2019-11-28

Method and system for thermal desorption treatment of organic-contaminated soil and treatment of desorbed waste gas

#67
20190330541
2019-10-31

Composition for removal of sulfur-containing compound

#68
20190329175
2019-10-31

Composition for removing sulfur-containing compound

#69
20190321774
2019-10-24

METHOD FOR DEPLETING AROMATIC HYDROCARBON FROM A CRUDE GAS FLOW

#70
20190299156
2019-10-03

Process for separating gases from gas mixtures using hydro fluoro ether

#71
20190224616
2019-07-25

System for simultaneously removing nitrogen oxides (NOx) and sulfur oxides (SOx) from exhaust gas

#72
20190211278
2019-07-11

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

#73
20190194523
2019-06-27

Synergized hemiacetals composition and method for scavenging sulfides and mercaptans

#74
20190187120
2019-06-20

Solvency for asphaltene deposit remediation or inhibition

#75
20190136220
2019-05-09

Variants of thermovibrio ammonificans carbonic anhydrase and COcapture methods using thermovibrio ammonificans carbonic anhydrase variants

#76
20190128601
2019-05-02

Process and plant for the combination production of a mixture of hydrogen and nitrogen and also of carbon monoxide by cryogenic distillation and cryogenic scrubbing

#77
20190112538
2019-04-18

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

#78
20190111381
2019-04-18

Removal of sulfate from solvent solutions using an anion exchange resin

#79
20190111380
2019-04-18

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

#80
20190083922
2019-03-21

Carbon dioxide absorbent and apparatus of separating and recovering carbon dioxide

#81
20190070551
2019-03-07

Combined Direct Contact Exchanger and Indirect-Contact Heat Exchanger

#82
20190047923
2019-02-14

Separation of off gases from C3 hydrocarbons in propane dehydrogenation process

#83
20190039017
2019-02-07

Moisture separation system

#84
20180345206
2018-12-06

Regenerable solvent mixtures for acid-gas separation

#85
20180223204
2018-08-09

Gas separation by vaporized compound

#86
20180221811
2018-08-09

Absorbent for selective removal of hydrogen sulfide from a fluid stream

#87
20180221530
2018-08-09

DEODORIZATION OF RECLAIMED STEAM FROM WASTE TREATMENT AUTOCLAVE

#88
20180216013
2018-08-02

Functionalized aldehydes as HS and mercaptan scavengers

#89
20180214813
2018-08-02

Protein nanofiber air filter materials and methods

#90
20180170839
2018-06-21

Recovery of Hydrogen and Ethylene from Fluid Catalytic Cracking Refinery Off Gas

#91
20180117526
2018-05-03

Method and apparatus for treating offgases in a acetic acid production unit

#92
20180104643
2018-04-19

Composition and apparatus for purifying nitrogen-oxide-containing gases

#93
20180078894
2018-03-22

Method and apparatus for separating one or more components from a composition

#94
20180072640
2018-03-15

Ethane recovery process and alkylation process with ethane recovery

#95
20180071714
2018-03-15

Method for producing particulate water-absorbing agent

#96
20180030360
2018-02-01

Antifouling and hydrogen sulfide scavenging compositions and methods

#97
20170361268
2017-12-21

CHAR SEPARATOR

#98
20170354921
2017-12-14

Process for dehumidifying moist gas mixtures

#99
20170335084
2017-11-23

Process for purification of vent streams

#100
20170333830
2017-11-23

Method for waste gas dedusting and dedusting agent

#101
20170267539
2017-09-21

Integrated process for carbon capture and energy production

#102
20170256812
2017-09-07

Carbon dioxide trapping device and method capable of producing electricity

#103
20170239614
2017-08-24

ENHANCED OLEFIN RECOVERY PROCESS

#104
20170122659
2017-05-04

PROCESS AND APPARATUS FOR SWEETENING AND LIQUEFYING A GAS STREAM

#105
20170106333
2017-04-20

Method and apparatus for purification and treatment of air

#106
20170081603
2017-03-23

Gas separation by vaporized compound

#107
20170080386
2017-03-23

Process for COcapture using micro-particles comprising biocatalysts

#108
20170072363
2017-03-16

Method for treating waste gas containing polycyclic aromatic hydrocarbons

#109
20170072362
2017-03-16

Process for COcapture using carbonates and biocatalysts

#110
20170050169
2017-02-23

Compressed Absorbing Medium

#111
20170023507
2017-01-26

Dibasic acid sensor and method for continuously measuring dibasic acid concentration in a substance

#112
20170014751
2017-01-19

Sulfide oxidation process and apparatus

#113
20160348964
2016-12-01

Method for separating a hydrocarbon mixture containing hydrogen, separating device, and olefin plant

#114
20160339355
2016-11-24

Oil scrubbing column

#115
20160336045
2016-11-17

Humidity control for enclosure

#116
20160332108
2016-11-17

Process, method, and system for removing mercury from fluids

#117
20160312141
2016-10-27

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

#118
20160310888
2016-10-27

Method for removing SOfrom gas using polyol composite solution

#119
20160263522
2016-09-15

Regenerative recovery of contaminants from effluent gases

#120
20160166981
2016-06-16

Method of enhancing removal of gaseous contaminants from a feedstream in a treatment chamber having liquid medium

#121
20160166974
2016-06-16

Apparatus for gas cleaning

#122
20160122190
2016-05-05

Process for recovering carbon monoxide from catalytic fast pyrolysis product

#123
20160115100
2016-04-28

Methods and apparatuses for reforming of hydrocarbons including recovery of products using an absorption zone and a pressure swing adsorption zone

#124
20160082384
2016-03-24

Reduction of amine emissions from an aqueous amine carbon dioxide capture system using charged colloidal gas aphrons

#125
20160059177
2016-03-03

Methanol carbonylation system with multiple absorber feed options

#126
20160023159
2016-01-28

Method and Apparatus for Separating One or More Components from a Composition

#127
20160023158
2016-01-28

Method and apparatus for separating one or more components from a composition

#128
20150343360
2015-12-03

REGENERATIVE FILTRATION AND VOC ABATEMENT SYSTEM

#129
20150336883
2015-11-26

Heavy metal remediation via sulfur-modified bio-oils

#130
20150328581
2015-11-19

Regenerable solvent mixtures for acid-gas separation

#131
20150255817
2015-09-10

Gas separator and battery system having the same

#132
20150251135
2015-09-10

Systems and methods of capturing carbon dioxide and minimizing production of carbon dioxide

#133
20150218472
2015-08-06

Polysiloxane scrubbing liquid for removing tar-like compounds

#134
20150218460
2015-08-06

Lean oil absorption and stabilization

#135
20150209719
2015-07-30

METHOD FOR REMOVING AROMATIC HYDROCARBONS FROM COKE OVEN GAS HAVING BIODIESEL AS WASHING LIQUID AND DEVICE FOR CARRYING OUT SAID METHOD

#136
20150190747
2015-07-09

Method of separating a gas using at least one membrane in contact with an organosilicon fluid

#137
20150166915
2015-06-18

Configurations and methods of flexible CO2 removal

#138
20150133702
2015-05-14

Emissions control of spent air from cumene oxidation

#139
20150107451
2015-04-23

Radon removal from gas

#140
20140369916
2014-12-18

Process for controlling the emission of flue gases

#141
20140367612
2014-12-18

Organic amine decarbonization solutions

#142
20140366729
2014-12-18

Method for recovering ethylene during the process for producing VAC and a device thereof

#143
20140366727
2014-12-18

VENT GAS ABSORPTION SYSTEM AND METHOD FOR RECOVERY VOCs

#144
20140349366
2014-11-27

Process for desorbing COcapture from ion-rich mixture with micro-particles comprising biocatalysts

#145
20140322118
2014-10-30

Regenerative recovery of contaminants from effluent gases

#146
20140305845
2014-10-16

Metal carboxylate salts as H2S scavengers in mixed production or dry gas or wet gas systems

#147
20140163248
2014-06-12

Heavy metal remediation via sulfur-modified bio-oils

#148
20140127105
2014-05-08

Carbon dioxide absorbent and method of using the same

#149
20140114111
2014-04-24

Recovery of monomers

#150
20140099701
2014-04-10

Process for biocatalytic COcapture using dimethylmonoethanolamine, diethylmonoethanolamine or dimethylglycine

#151
20130204038
2013-08-08

Process for the oxidation of hydrocarbons

#152
20130074693
2013-03-28

Water-saving liquid-gas conditioning system

#153
20130052109
2013-02-28

COMPOSITIONS FOR ABSORBING CARBON DIOXIDE, AND RELATED PROCESSES AND SYSTEMS

#154
20130039829
2013-02-14

ACID GAS RECOVERY UTILIZING ORGANIC ACID SALTED DIAMINE

#155
20130023711
2013-01-24

Light gas separation from hydrocarbons for variable composition feed streams

#156
20130020738
2013-01-24

Compressed growing medium

#157
20120321538
2012-12-20

Gas separation by vaporized compound

#158
20120308469
2012-12-06

Carbon dioxide-absorbing solution and method of recovering carbon dioxide

#159
20120186296
2012-07-26

PROCESS AND APPARATUS FOR SWEETENING AND LIQUEFYING A GAS STREAM

#160
20120171095
2012-07-05

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

#161
20120129246
2012-05-24

Process for COcapture using carbonates and biocatalysts with absorption of COand desorption of ion-rich solution

#162
20120129236
2012-05-24

FORMULATION AND PROCESS FOR CO2 CAPTURE USING AMINO ACIDS AND BIOCATALYSTS

#163
20120122195
2012-05-17

Process for COcapture using micro-particles comprising biocatalysts

#164
20120103038
2012-05-03

Compressed growing medium

#165
20120047793
2012-03-01

Systems and methods for treating hydrogen recycle gas in a process for converting biorenewable feedstock into renewable fuels and chemicals

#166
20120011999
2012-01-19

METHOD AND SYSTEM FOR REMOVING PARTICULATES FROM A FLUID STREAM

#167
20110308390
2011-12-22

Carbon dioxide absorbent and method of using the same

#168
20110237856
2011-09-29

Configurations and methods for removal of mercaptans from feed gases

#169
20110194988
2011-08-11

HYDRAZINE SPILL PAD APPARATUS AND METHOD OF MANUFACTURING

#170
20110165047
2011-07-07

Sulfide scavenging processes

#171
20110079151
2011-04-07

COrecovery system and COabsorption liquid

#172
20100293854
2010-11-25

Configurations and methods for fuel gas treatment with total sulfur removal and olefin saturation

#173
20100186590
2010-07-29

Absorption medium for removing acid gases which comprises amino acid and acid promoter

#174
20100154431
2010-06-24

LIQUID CARBON DIOXIDE ABSORBENT AND METHODS OF USING THE SAME

#175
20100095845
2010-04-22

VENT GAS ABSORPTION SYSTEM AND METHOD FOR RECOVERY VOCs

#176
20090270651
2009-10-29

Methanol carbonylation system having absorber with multiple solvent options

#177
20090205249
2009-08-20

Compressed growing medium

#178
20080256977
2008-10-23

Hydrocarbon recovery and light product purity when processing gases with physical solvents

#179
20060107589
2006-05-25

Compressed growing medium

#180
16993535
2023-02-28

Stable solid particulate system for controlling humidity to a selected range