ClassID:

29699

B01D53/504 - 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; Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device

Recent Application in this class:
#1
20250276278
2025-09-04

CARBON DIOXIDE AND SULFUR OXIDE CAPTURE AND CARBON RESOURCE CONVERSION SYSTEM FOR INTEGRATED GASIFICATION COMBINED CYCLE

#2
20240139678
2024-05-02

FLUE GAS PURIFICATION SYSTEM FOR HAZARDOUS WASTE INCINERATION AND PURIFICATION METHOD

#3
20230277984
2023-09-07

METHOD AND APPARATUS FOR CLEANING EXHAUST GAS

#4
20230265771
2023-08-24

SCRUBBER OUTLET ASSEMBLY

#5
20230173431
2023-06-08

WET INLINE SCRUBBER WITH A SIDE INLET FOR REDUCING THE AMOUNT OF SOX IN AN EXHAUST GAS PRODUCED BY ONE OR MORE ENGINES OF A MARINE VESSEL

#6
20230012031
2023-01-12

METHODS AND SYSTEMS FOR PROVIDING CORROSION RESISTANT SURFACES IN CONTAMINANT TREATMENT SYSTEMS

#7
20220339580
2022-10-27

COLLECTION AND SEPARATION SYSTEMS AND METHODS OF USE THEREOF AND ISOTOPE ANALYSIS SYSTEMS AND METHODS OF USE THEREOF

#8
20220331735
2022-10-20

Ammonia desulphurization and oxidation apparatus and method

#9
20220193604
2022-06-23

EXHAUST GAS PURIFICATION SYSTEM FOR REDUCING FINE DUST

#10
20220176315
2022-06-09

Method and installation for removing a gas from a flow of a gas mixture

#11
20210354086
2021-11-18

METHOD FOR SIMULTANEOUSLY REMOVING HIGH-LOAD SULFUR DIOXIDE AND NITROGEN OXIDE IN WASTE GAS

#12
20210308701
2021-10-07

Nozzle lance, combustion plant and method for exhaust gas treatment

#13
20210275966
2021-09-09

Method and installation for the reduction of sulphur oxides in exhaust gas from marine diesel engines

#14
20210275964
2021-09-09

METHOD FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE, DEVICE FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE, AND REMOTE MONITORING SYSTEM COMPRISING DEVICE FOR CONTROLLING WET FLUE GAS DESULFURIZATION DEVICE

#15
20210245094
2021-08-12

REACTOR FOR CLEANING FLUE GAS BY A DRY OR QUASI-DRY SORPTION PROCESS

#16
20210239326
2021-08-05

Energy-saving system using electric heat pump to deeply recover flue gas waste heat from heat power plant for district heating

#17
20210129077
2021-05-06

Conversion equipment for flue gas desulfurization systems and methods of converting calcium-based flue gas desulfurization systems

#18
20210113960
2021-04-22

Acid gas treatment

#19
20210086130
2021-03-25

System and method for optimized operation of flue gas desulfurization unit

#20
20210016223
2021-01-21

Treated water drying device and boiler system including the same

#21
20200406185
2020-12-31

Ship desulfurization device and ship equipped with ship desulfurization device

#22
20200353407
2020-11-12

Ammonia-based multi-zone double-loop process for ultralow emission of multi-pollutant

#23
20200299156
2020-09-24

Systems and methods of reducing selenium contamination in waste water

#24
20200206683
2020-07-02

Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems

#25
20200197863
2020-06-25

Wet scrubber tower with plates between nozzles for wet flue gas desulphurisation and particulate matter removal

#26
20200164310
2020-05-28

Flue gas desulfurization system

#27
20200155998
2020-05-21

Gas downcomer pipe, installation member and desulfurization apparatus

#28
20200147546
2020-05-14

Acid gas treatment

#29
20200139299
2020-05-07

Wet desulfurization apparatus capable of improving desulfurization efficiency and wet desulfurization method using the same

#30
20200139298
2020-05-07

Wet desulfurization apparatus capable of improving desulfurization efficiency and wet desulfurization method using the same

#31
20200108402
2020-04-09

Electrostatic precipitator module and desulfurization system including the same

#32
20200094186
2020-03-26

SPRAY PIPE AND DESULFURIZATION APPARATUS PROVIDED WITH THE SAME

#33
20200061533
2020-02-27

Desulfurization device

#34
20200061518
2020-02-27

Exhaust gas purification method and system

#35
20200054990
2020-02-20

Apparatus and calculating method of pH

#36
20200038807
2020-02-06

METHOD AND APPARATUS FOR FIXING CARBON DIOXIDE, AND FUEL GAS DESULFURIZATION FACILITY

#37
20200023310
2020-01-23

ACID GAS TREATMENT

#38
20200016530
2020-01-16

Process for removing S02 from gas with S02 content that is temporarily very high

#39
20200001235
2020-01-02

Desulfurization absorption tower

#40
20190374906
2019-12-12

Method and apparatus for removing sulfur oxides from gas

#41
20190358587
2019-11-28

Desulfurization absorption tower

#42
20190358560
2019-11-28

Scrubber tray and a wet scrubber tower comprising such scrubber tray

#43
20190351370
2019-11-21

Nozzle lance, combustion plant and method for exhaust gas treatment

#44
20190344216
2019-11-14

Ammonia-based desulfurization process and apparatus

#45
20190308136
2019-10-10

IN-LINE PIPE CONTACTOR

#46
20190292100
2019-09-26

Integrated lime hydrator

#47
20190275463
2019-09-12

Low pressure drop static mixing system

#48
20190270048
2019-09-05

Method for controlling aerosol production during absorption in ammonia desulfurization

#49
20190255483
2019-08-22

Flue gas treatment system and method

#50
20190224619
2019-07-25

Wet flue gas desulfurization apparatus

#51
20190209965
2019-07-11

Desulfurization absorption tower

#52
20190209963
2019-07-11

Ammonia-based desulfurization process and apparatus

#53
20190201823
2019-07-04

Composite material for air purification, preparation method therefor and application thereof

#54
20190184336
2019-06-20

Wet desulfurization apparatus capable of improving desulfurization efficiency and wet desulfurization method using the same

#55
20190184335
2019-06-20

Wet desulfurization apparatus capable of improving desulfurization efficiency and wet desulfurization method using the same

#56
20190143266
2019-05-16

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

#57
20190143265
2019-05-16

Method and apparatus for removing sulfur oxides from gas

#58
20190126197
2019-05-02

Method for controlling aerosol production during absorption in ammonia desulfurization

#59
20190107021
2019-04-11

System and method for reducing the amount of sulfur oxides in exhaust gas

#60
20190105605
2019-04-11

Conversion equipment for flue gas desulfurization systems and methods of converting calcium-based flue gas desulfurization systems

#61
20190099706
2019-04-04

INTEGRATED SYSTEM FOR SEAWATER SCRUBBING OF MARINE EXHAUST GAS

#62
20190077686
2019-03-14

Zero-discharge technique for separating sludge and salt from desulfurization wastewater

#63
20190076780
2019-03-14

Ammonia-based desulfurization process and apparatus

#64
20190070554
2019-03-07

Method for controlling aerosol production during absorption in ammonia desulfurization

#65
20190060831
2019-02-28

Desulfurization absorption tower

#66
20190046925
2019-02-14

Method and apparatus for removing sulfur oxides from gas

#67
20190001267
2019-01-03

Desulfurization absorption tower

#68
20190001257
2019-01-03

Wet flue gas desulfurization process and apparatus

#69
20180361312
2018-12-20

Methods and systems for removing contaminants from flue gas on a ship or offshore floating vessel using a rotating packed bed device

#70
20180347812
2018-12-06

Device and method for treating flue gases

#71
20180345202
2018-12-06

Liquid film dust arrester and flue gas desulfurization system

#72
20180339267
2018-11-29

Ammonia-based desulfurization process and apparatus

#73
20180306509
2018-10-25

Method of spray drying and washing and method of controlling air pollution

#74
20180290154
2018-10-11

Method for forming consistently-sized and controllably-timed droplets

#75
20180229179
2018-08-16

Oxidation control for improved flue gas desulfurization performance

#76
20180222778
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to water to effect various treatment functions

#77
20180221821
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave for removal of SO, COand NOfrom flue gases

#78
20180200667
2018-07-19

Wet flue gas desulfurization apparatus and operation method for wet flue gas desulfurization apparatus

#79
20180140991
2018-05-24

High-efficiency gradient hierarchy complex desulfurizing tower

#80
20180133645
2018-05-17

METHOD FOR CLEANING POLLUTING COMBUSTION FUMES

#81
20180093220
2018-04-05

Method and device for wet flue-gas desulfurization

#82
20170341014
2017-11-30

Flue gas treatment system and method

#83
20170326498
2017-11-16

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

#84
20170259203
2017-09-14

Apparatus and calculating method of pH

#85
20170081206
2017-03-23

Apparatus and method for producing magnesium sulfate from coal-fired boiler flue gas

#86
20170023507
2017-01-26

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

#87
20170014759
2017-01-19

DEVICE AND METHOD FOR EXTRACTING A CHEMICAL COMPOUND IN ACID GASES

#88
20170007959
2017-01-12

Limestone supply device and air pollution control system

#89
20170001143
2017-01-05

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

#90
20160361727
2016-12-15

Scrubber fluid treatment process

#91
20160361685
2016-12-15

Exhaust gas clean-up system for fossil fuel fired power plant

#92
20160346730
2016-12-01

Method of controlling a wet scrubber useful for removing sulphur dioxide from a process gas

#93
20160332113
2016-11-17

Marine exhaust gas cleaning system

#94
20160325203
2016-11-10

Spray drying apparatus and air pollution control system

#95
20160317968
2016-11-03

Amount-of-seawater control device for scrubber, amount-of-seawater control method for scrubber, and amount-of-alkali control device

#96
20160288050
2016-10-06

Method and apparatus for reagent recovery in a flue gas processing system

#97
20160250587
2016-09-01

Method and apparatus for wet desulfurization spray towers

#98
20160243494
2016-08-25

Apparatus and method for evaporating waste water and reducing acid gas emissions

#99
20160236142
2016-08-18

Desulfurization method for gas containing sulfur oxide and desulfurization apparatus

#100
20160193565
2016-07-07

Method for removing dust and sulphur oxides from process gases

#101
20160144316
2016-05-26

Low pressure drop static mixing system

#102
20160129394
2016-05-12

Method and device for treating gas by injecting a powdered compound and an aqueous phase

#103
20160096139
2016-04-07

Exhaust gas purification device and COrecovery system

#104
20160096130
2016-04-07

Dust separator useful with dry scrubber system

#105
20160089631
2016-03-31

Combined desulfuration, denitration, and demercuration apparatus and method using semi-dry process in circulating fluidized bed

#106
20160067651
2016-03-10

Device for removing impurities from water-containing gas and impurities removal system

#107
20160059186
2016-03-03

Impurities removal system

#108
20160051924
2016-02-25

Desulfurization device

#109
20160018159
2016-01-21

Alkalinity control agent supply method and apparatus for compressor impurity separation mechanism

#110
20150375167
2015-12-31

Method and apparatus for preventing corrosion of compressor impurity separation mechanism

#111
20150367282
2015-12-24

High rotational momentum disperser and use

#112
20150360174
2015-12-17

Air pollution control system and air pollution control method

#113
20150352486
2015-12-10

Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process

#114
20150336049
2015-11-26

Wet scrubber and a method of cleaning a process gas

#115
20150246312
2015-09-03

Apparatus and method for integrating desulfurization and carbon dioxide capture

#116
20150209723
2015-07-30

Exhaust gas treatment apparatus, ship, and exhaust gas treatment method

#117
20150190750
2015-07-09

Flue gas desulfurization apparatus

#118
20150174527
2015-06-25

Exhaust gas processing apparatus

#119
20150174526
2015-06-25

Wet type flue-gas desulfurization method

#120
20150147233
2015-05-28

Exhaust gas purifying apparatus

#121
20150139881
2015-05-21

Wet type flue-gas desulfurization apparatus and method for adjusting oxidation reduction potential of absorbent therefor

#122
20150125353
2015-05-07

Air pollution control apparatus

#123
20150101485
2015-04-16

Method and apparatus for wet desulfurization spray towers

#124
20150076081
2015-03-19

Method and apparatus for catalyzing seawater aeration basins

#125
20150023855
2015-01-22

Wet scrubber nozzle system and method of use for cleaning a process gas

#126
20140346247
2014-11-27

Dry flue gas desulfurization system with dual feed atomizer liquid distributor

#127
20140248201
2014-09-04

Scrubber system and method

#128
20140230647
2014-08-21

Method of controlling a wet scrubber useful for removing sulphur dioxide from a process gas

#129
20140199224
2014-07-17

Method for monitoring a cleaning of a process gas

#130
20140186249
2014-07-03

Methods and systems for gas filtering and carbon dioxide capture

#131
20140154158
2014-06-05

Apparatus and method for removing sulfur dioxide from flue gases

#132
20140140898
2014-05-22

Wet scrubber and a method of cleaning a process gas

#133
20140131256
2014-05-15

Reaction system and products therefrom

#134
20140083629
2014-03-27

Spray drying apparatus of dehydration filtrate from desulfurization waste water, and air pollution control system

#135
20140072483
2014-03-13

DESULFURIZATION DEVICE AND PARTICULATE COLLECTION SYSTEM

#136
20140056775
2014-02-27

Wet type exhaust gas desulfurization apparatus

#137
20140050651
2014-02-20

System and process for trapping sulfur dioxide and carbon dioxide by ammonia absorption at atmospheric pressure

#138
20140045131
2014-02-13

Spray drying apparatus for dehydrated filtrate from desulfurization waste water, and air pollution control system

#139
20140030157
2014-01-30

Wet type exhaust gas desulfurization apparatus

#140
20140026753
2014-01-30

Wet scrubber and a method of cleaning a process gas

#141
20130336869
2013-12-19

System and method for preventing scaling in a flue gas desulphurization system

#142
20130315811
2013-11-28

Ship flue gas scrubbing apparatus and method

#143
20130309139
2013-11-21

Flue-gas desulfurization equipment

#144
20130302229
2013-11-14

Spray dryer absorption apparatus with flat-bottomed chamber

#145
20130263742
2013-10-10

Tube separator as a separator of very fine particles for reducing fine dust emissions and avoiding stack rain

#146
20130259788
2013-10-03

Condenser and method for cleaning flue gases

#147
20130248121
2013-09-26

Spray-drying device for dehydrated filtrate from desulfurization wastewater, air pollution control system and flue gas treatment method

#148
20130213231
2013-08-22

Flue gas scrubbing apparatus and methods thereof

#149
20130156664
2013-06-20

Dry sorbent injection during steady-state conditions in dry scrubber

#150
20130139696
2013-06-06

Multi-directional outlet transition and hood

#151
20130055937
2013-03-07

FLUE GAS DESULFURIZATION DEVICE, COMBUSTION SYSTEM AND COMBUSTION METHOD

#152
20130052111
2013-02-28

Methods and system for removing gas components from flue gas

#153
20130048543
2013-02-28

Reaction system and products therefrom

#154
20130036953
2013-02-14

Wet Type Flue-Gas Desulfurization Apparatus and Thermal Power Plant Having the Same

#155
20130020730
2013-01-24

Wet Flue Gas Desulfurization Device

#156
20120312166
2012-12-13

System and method for purifying ship diesel exhaust gases

#157
20120285326
2012-11-15

Gypsum dewatering device for desulfurization facility

#158
20120273979
2012-11-01

Exhaust gas treatment apparatus

#159
20120272626
2012-11-01

Exhaust gas treatment device for an oxygen combustion system

#160
20120267806
2012-10-25

Exhaust gas treatment apparatus

#161
20120251423
2012-10-04

Methods for reducing the acidic gas content of effluent gases

#162
20120237422
2012-09-20

METHOD AND PLANT FOR FLUE GAS DE-NOXING

#163
20120189522
2012-07-26

Method of Desulfurizing Flue Gas, an Arrangement for Desulfurizing Flue Gas, and a Method of Modernizing a Desulfurization Arrangement

#164
20120187050
2012-07-26

AERATION APPARATUS, SEAWATER FLUE GAS DESULPHURIZATION APPARATUS INCLUDING THE SAME, AND OPERATION METHOD OF AERATION APPARATUS

#165
20120186454
2012-07-26

AERATION APPARATUS, SEAWATER FLUE GAS DESULPHURIZATION APPARATUS INCLUDING THE SAME, AND OPERATION METHOD OF AERATION APPARATUS

#166
20120087837
2012-04-12

Flue gas purification system

#167
20120085240
2012-04-12

SCRUBBER TOWER AND RELATED FLUE GAS SCRUBBING DEVICE

#168
20120067777
2012-03-22

Reaction system and products therefrom

#169
20120042784
2012-02-23

AERATION APPARATUS INCLUDING WATER-REPELLENT LAYER AND SEAWATER FLUE GAS DESULFURIZATION APPARATUS INCLUDING THE SAME

#170
20120042783
2012-02-23

AERATION APPARATUS, SEAWATER FLUE GAS DESULPHURIZATION APPARATUS INCLUDING THE SAME, AND METHOD FOR OPERATING AERATION APPARATUS

#171
20110296988
2011-12-08

Low emission power plant

#172
20110290665
2011-12-01

Method and apparatus for providing electrochemical corrosion protection

#173
20110203456
2011-08-25

Wet scrubber and a method of cleaning a process gas

#174
20110135554
2011-06-09

Systems and methods for removing gaseous pollutants from a gas stream

#175
20110083592
2011-04-14

Segregated in-situ forced oxidation wet flue gas desulfurization for oxygen-fired fossil fuel combustion

#176
20110044870
2011-02-24

System and method for flue gas scrubbing

#177
20100329957
2010-12-30

EXHAUST-GAS TREATMENT APPARATUS AND EXHAUST-GAS TREATMENT METHOD

#178
20100294386
2010-11-25

Gas sparger for supplying oxidation gas to a wet scrubber

#179
20100254869
2010-10-07

Process for removal of carbon dioxide from combustion gases

#180
20100236636
2010-09-23

Fluid distribution system

#181
20100221162
2010-09-02

System and method for purification of flue gases

#182
20100202948
2010-08-12

Reverse flow reactor

#183
20100175552
2010-07-15

Systems and methods for removing gaseous pollutants from a gas stream

#184
20100147968
2010-06-17

Dry flue gas desulfurization system with dual feed atomizer liquid distributor

#185
20100119428
2010-05-13

Exhaust-gas treatment apparatus and exhaust-gas treatment method

#186
20100111777
2010-05-06

Low cost wet lime/limestone/sodium FGD system

#187
20100107939
2010-05-06

Treatment method for high-temperature exhaust gas

#188
20100077925
2010-04-01

Wet flue-gas desulfurization equipment

#189
20100068111
2010-03-18

Joining the mixing and variable gas atomizing of reactive chemicals in flue gas cleaning systems for removal of sulfur oxides, nitrogen oxides and mercury

#190
20100068110
2010-03-18

Removal of Hg, NO, and SOwith using oxidants and staged gas/liquid contact

#191
20100040524
2010-02-18

Scrubber for removing pollutants from flue gas

#192
20090320687
2009-12-31

Wet-type exhaust desulfurizing apparatus

#193
20090277334
2009-11-12

Wet flue gas desulfurization apparatus

#194
20090263305
2009-10-22

Wet flue-gas desulfurization apparatus and method of wet flue-gas desulfurization

#195
20090257932
2009-10-15

Flue gas desulfurization process

#196
20090188840
2009-07-30

Screen basket for securing inlets or outlets of tanks

#197
20090188393
2009-07-30

Flue gas desulfurization apparatus

#198
20090173234
2009-07-09

Wet-type exhaust gas desulfurizer

#199
20090151563
2009-06-18

EXTRACTION DEVICE

#200
20090113881
2009-05-07

WET TYPE SCRUBBER FOR EXHAUST GAS AND METHOD OF OPERATION

#201
20090092529
2009-04-09

Systems and methods for removing gaseous pollutants from a gas stream

#202
20080305017
2008-12-11

Gas quench and scrubber draw-off system

#203
20080241036
2008-10-02

Method and device for separation of sulphur dioxide from a gas

#204
20080236143
2008-10-02

WASTE GAS PURIFICATION APPARATUS AND METHOD THEREFOR

#205
20080223408
2008-09-18

System and method for preventing scaling in a flue gas desulphurization system

#206
20080210096
2008-09-04

Multi-target scrubber

#207
20080210095
2008-09-04

Turn-around scrubber

#208
20080079181
2008-04-03

Method and apparatus for improved gas/fluid contact

#209
20080044335
2008-02-21

Method and an equipment for reducing the sulphur dioxide emissions of a marine engine

#210
20080008630
2008-01-10

Polluting gas desulfurization apparatus

#211
20070243119
2007-10-18

Process for controlling the moisture concentration of a combustion flue gas

#212
20070202028
2007-08-30

Hybrid wet and dry electrostatic precipitator ammonia scrubber

#213
20070187849
2007-08-16

Exhaust gas treating tower

#214
20070183948
2007-08-09

Multiphase reactor

#215
20070137483
2007-06-21

Bubbling bed reactor and a method of separating a gaseous pollutant from a gas

#216
20070134141
2007-06-14

Apparatus for treating flue gas using single-stage gas dispersing tray

#217
20070128090
2007-06-07

Wet electrostatic liquid film oxidizing reactor apparatus and method for removal of NOx, SOx, mercury, acid droplets, heavy metals and ash particles from a moving gas

#218
20070063359
2007-03-22

Aeration system and method

#219
20060210453
2006-09-21

Flue gas purification device

#220
20060208372
2006-09-21

Flue gas purification device having an improved oxidation device in the scrubbing liquid sump

#221
20060185320
2006-08-24

Absorber tower metal hood to concrete shell attachment

#222
20060125232
2006-06-15

Spray fitting for a tower pertaining to an installation for treating a gas flow with a liquid

#223
20060117953
2006-06-08

Method and device for separating sulphur dioxide from a gas

#224
20060112824
2006-06-01

Method for separating solids from gas scrubbers

#225
20060093534
2006-05-04

Exhaust gas treatment apparatus

#226
20060060088
2006-03-23

Wetted particle and droplet impingement surface

#227
20060047564
2006-03-02

Estimating an economic parameter related to a process for controlling emission of a pollutant into the air

#228
20060047526
2006-03-02

Cost based control of air pollution control

#229
20050214189
2005-09-29

Dry scrubber/collector

#230
20050214187
2005-09-29

Removal of Hg, NO, and SOwith using oxidants and staged gas/liquid contact

#231
20050046052
2005-03-03

Exhaust gas treating tower

#232
20050025689
2005-02-03

Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus

#233
20050025679
2005-02-03

Flue gas desulfurization apparatus and flue gas desulfurization system

#234
20050013757
2005-01-20

Method and system for removing sulfur and dust from waste gases, particularly refinery waste gases

#235
20050002852
2005-01-06

Process and apparatus for scrubbing sulfur dioxide from flue gas and conversion to fertilizer

#236
17324230
2022-01-04

Method of scrubbing sulfur dioxide from waste gas to product potassium thiosulfate

#237
17106090
2022-01-04

Crossflow scrubbing method and apparatus to produce a product such as potassium thiosulfate or ammonium thiosulfate

#238
16215610
2020-01-14

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