ClassID:

29718

B01D53/73 - 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 After-treatment of removed components

Recent Application in this class:
#1
20260145128
2026-05-28

ATMOSPHERIC CARBON DIOXIDE CAPTURE SYSTEM

#2
20260084094
2026-03-26

PLANT AND METHOD FOR PRODUCING CARBON DIOXIDE

#3
20260042057
2026-02-12

SYSTEMS AND METHODS FOR FORMATION, COMPACTION, SEALING, AND DISPOSAL OF CO2 HYDRATES ON THE SEABED

#4
20250332543
2025-10-30

Switchable Dual Functional Material

#5
20250296041
2025-09-25

ORGANIC SOLVENT RECOVERY SYSTEM USING AN INERT GAS CLOSED LOOP STREAM

#6
20250235858
2025-07-24

TITANIA-BASED DUAL FUNCTIONAL MATERIALS FOR REACTIVE CAPTURE AND CONVERSION OF CO2 TO METHANE AND OTHER PRODUCTS

#7
20250214037
2025-07-03

CARBON DIOXIDE SEQUESTRATION WITH MAGNESIUM HYDROXIDE AND REGENERATION OF MAGNESIUM HYDROXIDE

#8
20250206603
2025-06-26

INTEGRATED SYSTEM OF DEVICES AND PROCEDURE FOR CONVERTING CARBON-BASED COMPOSITE MATERIAL INTO A HYDROGEN-RICH GAS, WITH THE OPTION OF CAPTURING AND USING ITS EMISSIONS AND WASTE

#9
20250170526
2025-05-29

PROCESS FOR SEPARATING WASTE GAS FROM A FERROUS METAL PRODUCTION UNIT

#10
20250170518
2025-05-29

METHOD OF PRODUCING CARBON DIOXIDE FROM A GAS SCRUBBING PROCESS

#11
20250135399
2025-05-01

METHOD AND DEVICE FOR CONTROLLING AMMONIA ESCAPE AND SOLUBLE PARTICULATE MATTER WITH LOW ENERGY CONSUMPTION IN AN AMMONIA-BASED CARBON CAPTURE PROCESS

#12
20250099914
2025-03-27

CARBON NEUTRAL LANDFILL SOLUTIONS

#13
20250083100
2025-03-13

CARBON DIOXIDE CAPTURE AND CARBON CAPTURE AND UTILIZATION SYSTEM FOR SHIP, AND METHOD THEREFOR

#14
20250020870
2025-01-16

Carbon Sequestration Methods and Systems

#15
20250018341
2025-01-16

METHOD AND SYSTEM FOR CAPTURING AND UTILIZING CARBON DIOXIDE

#16
20240424442
2024-12-26

METHOD AND APPARATUS FOR SUSTAINABLE CARBON DIOXIDE SEQUESTRATION

#17
20240392449
2024-11-28

SYSTEMS AND METHODS FOR ELECTROCHEMICAL GENERATION OF SYNGAS AND OTHER USEFUL CHEMICALS

#18
20240368776
2024-11-07

SYSTEMS AND METHODS FOR ELECTROCHEMICAL GENERATION OF SYNGAS AND OTHER USEFUL CHEMICALS

#19
20240367103
2024-11-07

ETHYLENE OXIDE GAS REMOVAL METHOD, AND ETHYLENE OXIDE GAS REMOVAL SYSTEM USING SAME

#20
20240326134
2024-10-03

Method and apparatus for treating combustible and/or reactive particles, method of operating a system for producing a three-dimensional work piece and system for producing a three-dimensional work piece

#21
20240286076
2024-08-29

METHOD AND SYSTEM FOR SULFUR, CARBON DIOXIDE AND HYDROGEN RECOVERY

#22
20240279554
2024-08-22

Methods and Systems Utilizing Methane Pyrolysis Integrated with Carbon Dioxide Conversion for Producing Low-carbon Intensity Fuels

#23
20240271046
2024-08-15

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

#24
20240165558
2024-05-23

PHOTOCHEMICAL METHOD AND DEVICE FOR VOLATILE ORGANIC COMPOUND POLLUTION CONTROL

#25
20240165557
2024-05-23

METHODS OF ADDING FEED MEDIUM INTO BIOPROCESS

#26
20240123400
2024-04-18

SYSTEMS AND METHODS FOR INTEGRATED DIRECT AIR CARBON DIOXIDE CAPTURE AND DESALINATION MINERAL RECOVERY

#27
20240091702
2024-03-21

CHEMICAL SEQUESTERING OF CO2, NOx and SO2

#28
20240024814
2024-01-25

PHOTOCHEMICAL METHOD AND DEVICE FOR VOLATILE ORGANIC COMPOUND POLLUTION CONTROL

#29
20240009622
2024-01-11

Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide

#30
20230415098
2023-12-28

Photochemical method and device for volatile organic compound pollution control

#31
20230381716
2023-11-30

Gas purification apparatus and method

#32
20230212085
2023-07-06

INTEGRATED CARBON DIOXIDE CAPTURE

#33
20230211289
2023-07-06

Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide

#34
20230211287
2023-07-06

Efficient and fully automated catalytic direct carbon dioxide capture from air system

#35
20230201765
2023-06-29

ABATEMENT APPARATUS FOR EXHAUST GAS

#36
20230110965
2023-04-13

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

#37
20230077286
2023-03-09

USE OF CO2-CONTAINING GASEOUS EFFLUENT

#38
20230073192
2023-03-09

CARBON DIOXIDE RECOVERY DEVICE AND CARBON DIOXIDE RECOVERY SYSTEM USING SAME, AND CARBON DIOXIDE RECOVERY METHOD

#39
20230050756
2023-02-16

PROCESS FOR PRODUCING SODIUM PHOSPHATE FROM SODIUM CARBONATE AND SODIUM BICARBONATE

#40
20220274049
2022-09-01

Chemical sequestering of CO, NOand SO

#41
20220096997
2022-03-31

CHEMICAL SEQUESTERING OF CO2, NOX AND SO2

#42
20210402352
2021-12-30

ENGINE EXHAUST GAS OZONE PURIFICATION SYSTEM AND METHOD

#43
20210370233
2021-12-02

Multistage mineral carbonation

#44
20210356680
2021-11-18

Carbon sequestration methods and systems

#45
20210354082
2021-11-18

DEVICE FOR RECOVERING POLLUTED AIR

#46
20210205756
2021-07-08

Exhaust stack Carbon Dioxide emissions conversion into Bulk Industrial Chemicals from the combustion of Fossil Fuels/Hydrocarbons or other Chemical/Biochemical processes

#47
20210205755
2021-07-08

Method and apparatus for separating carbon dioxide and for utilizing carbon dioxide

#48
20210162343
2021-06-03

METHOD AND DEVICE FOR REMOVING AMMONIA FROM EXHAUST AIR FROM A LIVESTOCK STABLE

#49
20210139327
2021-05-13

Process to convert a sulphur compound

#50
20210138397
2021-05-13

Method and apparatus for treating combustible and/or reactive particles, method of operating a system for producing a three-dimensional work piece and system for producing a three-dimensional work piece

#51
20210123146
2021-04-29

Systems and methods for electrochemical generation of syngas and other useful chemicals

#52
20210114878
2021-04-22

Method for production of ammonium phosphate from phosphate rock slurry

#53
20210113960
2021-04-22

Acid gas treatment

#54
20210101113
2021-04-08

PURIFICATION OF POLLUTED AIR USING MICRO-ORGANISM-CONTAINING PARTICULATE MEDIA

#55
20210016223
2021-01-21

Treated water drying device and boiler system including the same

#56
20200384410
2020-12-10

Elimination of SOand COfrom a gas

#57
20200316524
2020-10-08

Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide

#58
20200283377
2020-09-10

Urea finishing and off-gas treatment plant and process

#59
20200223760
2020-07-16

Integrated carbon dioxide capture

#60
20200197852
2020-06-25

Filter device

#61
20200179872
2020-06-11

System and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud

#62
20200147546
2020-05-14

Acid gas treatment

#63
20200131045
2020-04-30

Treatment method for reducing carbon dioxide emission of combustion exhaust gas

#64
20200108403
2020-04-09

Dust collecting module and desulfurizing apparatus having same

#65
20200101471
2020-04-02

Dust collecting module, desulfurizing apparatus having same, and method of installing dust collecting module

#66
20200030744
2020-01-30

AGENT FOR REMOVING HALOGEN GAS, METHOD FOR PRODUCING SAME, METHOD FOR MONITORING THE CONSUMPTION STATE OF THE REMOVAL AGENT

#67
20200023310
2020-01-23

ACID GAS TREATMENT

#68
20190321779
2019-10-24

BIOWALL SYSTEMS AND METHODS FOR POLLUTANT PROCESSING

#69
20190224619
2019-07-25

Wet flue gas desulfurization apparatus

#70
20190187386
2019-06-20

Carbon sequestration methods and systems

#71
20190160395
2019-05-30

Apparatus and process for removal of carbon dioxide from a gas flow and treatment of brine/waste water from oil fields

#72
20190143266
2019-05-16

BIOLOGICAL TREATMENT OF FLUE GAS DESULFURIZATION BLOWDOWN WATER WITH UPSTREAM SULFITE CONTROL

#73
20190111385
2019-04-18

COrecovery device and COrecovery method

#74
20190023615
2019-01-24

Composition for treatment of flue gas waste products

#75
20190016598
2019-01-17

Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology

#76
20180353899
2018-12-13

Process and system for removing sulfur dioxide from flue gas

#77
20180318759
2018-11-08

Process for removing H2S from gas stream by calcium based reaction separation

#78
20180257936
2018-09-13

Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology

#79
20180229178
2018-08-16

Sequestration of COusing clathrates

#80
20180186718
2018-07-05

Purified terephthalic acid (PTA) vent dryer vapor effluent treatment

#81
20180161725
2018-06-14

System and method for reducing liquid discharge from one or more devices

#82
20180133645
2018-05-17

METHOD FOR CLEANING POLLUTING COMBUSTION FUMES

#83
20180043307
2018-02-15

Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide

#84
20180028967
2018-02-01

Method for capturing carbon dioxide

#85
20180011261
2018-01-11

Pushable multi-fiber connector

#86
20170369345
2017-12-28

Process and plant for separating off and/or recovering nitrogen compounds from a liquid or sludge substrate

#87
20170326498
2017-11-16

Sulfite Preconditioning Systems And Methods To Reduce Mercury Concentrations In Waste Water

#88
20170304764
2017-10-26

Regenerative absorbents of modified amines on nano-structured supports

#89
20170291138
2017-10-12

COrecovery device and COrecovery method

#90
20170268396
2017-09-21

AIR-PURIFICATION DEVICE USING LIQUID REDUCING AGENT, AND OPERATION AND APPLICATION METHOD THEREFOR

#91
20170256812
2017-09-07

Carbon dioxide trapping device and method capable of producing electricity

#92
20170218740
2017-08-03

SUBTERRANEAN CONVERSION OF CARBON DIOXIDE TO BIOMASS BY CHEMOLITHOTROPY

#93
20170182459
2017-06-29

System and method for reducing liquid discharge from one or more devices

#94
20170165870
2017-06-15

Carbon dioxide treatment of concrete upstream from product mold

#95
20170158508
2017-06-08

Method to prepare one or more chemical products using hydrogen sulfide

#96
20170136386
2017-05-18

Methods for Treating Industrial Waste Streams and Recovering Certain Chemical Compounds

#97
20170113183
2017-04-27

Process and system for removing sulfur dioxide from flue gas

#98
20170100695
2017-04-13

System and Method for Scrubbing Contaminated Gas with a Glycerol Solution

#99
20170088467
2017-03-30

Apparatus and method for producing cement through flue gas desulfurization

#100
20170015598
2017-01-19

Integrated carbon dioxide capture

#101
20170001143
2017-01-05

Exhaust gas treatment device and waste water treatment method for exhaust gas treatment device

#102
20160376230
2016-12-29

Urea granulation process with scrubbing system

#103
20160367936
2016-12-22

WATER TREATMENT SYSTEM AND METHOD

#104
20160355933
2016-12-08

METHOD AND SYSTEM FOR PRODUCING CARBON DIOXIDE AND ELECTRICITY FROM A GASEOUS HYDROCARBON FEED

#105
20160317965
2016-11-03

Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products

#106
20160306124
2016-10-20

Pushable multi-fiber connector

#107
20160265764
2016-09-15

System and method for reducing emissions in a chemical looping combustion system

#108
20160214059
2016-07-28

Systems and methods for removing sulfur dioxide from a gas stream

#109
20160206994
2016-07-21

METHOD AND APPARATUS FOR REMOVING CARBON DIOXIDE FROM FLUE GAS

#110
20160201903
2016-07-14

Method of and apparatus for combusting sulfurous fuel in a circulating fluidized bed boiler

#111
20160194208
2016-07-07

Methods and systems using electrochemical cells for processing metal sulfate compounds from mine waste and sequestering CO

#112
20160082387
2016-03-24

Carbon sequestration methods and systems

#113
20150343373
2015-12-03

Carbon capture system and method for capturing carbon dioxide

#114
20150322580
2015-11-12

Treatment of hydrogen sulfide

#115
20150299011
2015-10-22

Method for breakdown of toxic organic compounds contained in wastewaters and/or waste gases

#116
20150260022
2015-09-17

Method and apparatus for using frozen carbon dioxide blocks or cylinders to recover oil from abandoned oil wells

#117
20150076081
2015-03-19

Method and apparatus for catalyzing seawater aeration basins

#118
20140328739
2014-11-06

Emission control system

#119
20140327168
2014-11-06

Carbon dioxide treatment of concrete upstream from product mold

#120
20140308507
2014-10-16

Systems and methods for capture and sequestration of gases and compositions derived therefrom

#121
20140284214
2014-09-25

Process for the removal of ammonia from an ammonia-containing gas stream

#122
20140219895
2014-08-07

Integrated chemical looping air separation in large-scale oxy-fuel plants

#123
20140170047
2014-06-19

Method for removing impurities from flue gas condensate

#124
20140127107
2014-05-08

Method for removing contaminants from exhaust gases

#125
20140127094
2014-05-08

Processing of sulfate and/or sulfide-rich waste using CO-enriched gases to sequester CO, reduce environmental impacts including acid rock drainage and produce reaction products

#126
20140116295
2014-05-01

Carbon dioxide treatment of concrete upstream from product mold

#127
20140094360
2014-04-03

Reactive extraction process for regeneration of amine-based solvents used for carbon dioxide capture

#128
20140093440
2014-04-03

Corrosion control in acid gas removal equipment by the situ generation of polysulfide ions

#129
20140042362
2014-02-13

In situ generation of polysulfide ions using elemental sulfur for improved corrosion control, cyanide management, mercury management, arsine management and performance and reliability of acid gas removal equipment

#130
20140041562
2014-02-13

Method of cleaning a carbon dioxide rich flue gas and a boiler system

#131
20130259788
2013-10-03

Condenser and method for cleaning flue gases

#132
20130115151
2013-05-09

PROCESS FOR THE REMOVAL OF ACID GASES FROM THE AIR AND FROM COMBUSTION GASES FROM BURNERS AND INTERNAL COMBUSTION ENGINES BY MEANS OF ABSORPTION WITH SODIUM HYDROXIDE SOLUTION AND PROCESS FOR OBTAINING SODIUM CARBONATE IN ORDER TO ACQUIRE CARBON CREDITS

#133
20130104736
2013-05-02

Filtration module

#134
20120240650
2012-09-27

STABILIZATION AND REMOTE RECOVERY OF ACID GAS FRACTIONS FROM SOUR WELLSITE GAS

#135
20120134902
2012-05-31

Method of fixing carbon dioxide

#136
20120087836
2012-04-12

Converting COto an alcohol

#137
20120063962
2012-03-15

Method for purifying flue gases from combustion plants and then producing urea

#138
20110277474
2011-11-17

METHODS AND SYSTEMS USING NATURAL GAS POWER PLANT

#139
20110250113
2011-10-13

Method of treating a syngas stream and an apparatus therefor

#140
20110129407
2011-06-02

Systems and methods for capture and sequestration of gases and compositions derived therefrom

#141
20110067411
2011-03-24

Converting COto an alcohol

#142
20110023908
2011-02-03

METHODS AND APPARATUS FOR PROCESS ABATEMENT WITH RECOVERY AND REUSE OF ABATEMENT EFFLUENT

#143
20100311104
2010-12-09

Bacteria and methods of use thereof

#144
20100260653
2010-10-14

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#145
20100160710
2010-06-24

METHODS AND APPARATUSES FOR REDUCING EMISSIONS OF VOLATILE ORGANIC COMPOUNDS FROM PUMPS AND STORAGE TANKS FOR VOC-CONTAINING FLUIDS

#146
20100099914
2010-04-22

Method for purifying flue gases from combustion plants and then producing urea

#147
20100086456
2010-04-08

Method and arrangement for separation of COfrom combustion flue gas

#148
20090289227
2009-11-26

Production of fuel materials utilizing waste carbon dioxide and hydrogen from renewable resources

#149
20090270671
2009-10-29

Calcium-sodium polysulfide chemical reagent and production methods

#150
20090255444
2009-10-15

METHOD FOR CAPTURING CO2 PRODUCED BY CEMENT PLANTS BY USING THE CALCIUM CYCLE

#151
20090205364
2009-08-20

Method and apparatus for removing carbon dioxide gas from coal combustion power plants

#152
20090202424
2009-08-13

Calcium-sodium polysulfide chemical reagent and production methods

#153
20090143211
2009-06-04

Systems and methods for carbon capture and sequestration and compositions derived therefrom

#154
20090127127
2009-05-21

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#155
20080264250
2008-10-30

Flue gas desulfurization process utilizing hydrogen peroxide

#156
20080255393
2008-10-16

Method for purifying and concentrating dinitrogen monoxide

#157
20080250715
2008-10-16

Process and apparatus for carbon capture and elimination of multi-pollutants in flue gas from hydrocarbon fuel sources and recovery of multiple by-products

#158
20080241037
2008-10-02

Method and system of controlling sulfur oxides in flue gas from coal or oil-fired boilers

#159
20080236398
2008-10-02

Reclaiming carbon dioxide from boiler flue gas

#160
20080236117
2008-10-02

EQUIPMENT FOR PRESSURIZED ADSORPTION AND LIQUIFICATION OF CARBON DIOXIDE FROM BOILER FLUE GAS FOR OIL RECOVERY BY WELL INJECTION

#161
20080203036
2008-08-28

COrecovery system and solid-particles removing method for use in the same

#162
20080128291
2008-06-05

Process for the removal of ammonia from an ammonia-containing gas stream

#163
20080038173
2008-02-14

System and process for cleaning a flue gas stream

#164
20070114136
2007-05-24

Method of obtaining electrolytic manganese from ferroalloy production waste

#165
20070031311
2007-02-08

Regeneration of calcium oxide or calcium carbonate from waste calcium sulphide

#166
20060204432
2006-09-14

Process for the recovery of sulfur from Claus tail gas streams

#167
20060185985
2006-08-24

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#168
20060182671
2006-08-17

System for decomposing organic compound

#169
20060110308
2006-05-25

Silicon carbides, silicon carbide based sorbents, and uses thereof

#170
20060099124
2006-05-11

Method for isolating hydrogen sulphide from coke oven gas with the subsequent recovery of elemental sulphur in a Claus plant

#171
20060094921
2006-05-04

Method for chemically stabilizing waste materials containing multivalent oxyanions

#172
20060094920
2006-05-04

Calcium-sodium polysulfide chemical reagent and production methods

#173
20050255023
2005-11-17

Method for destruction of organic compounds by co-oxidation with activated carbon

#174
20050095190
2005-05-05

Regeneration of calcium oxide or calcium carbonate from waste calcium sulphide

#175
20050061149
2005-03-24

Method for removing a nitrogen oxide from a gas

#176
20050011362
2005-01-20

Sulfur trap sealing device

#177
16372060
2022-07-12

Process and system for low pressure CO2 capture and bio-sequestration