ClassID:

30265

B01D2251/206 - CPC Classification

Classification description:

Reactants; Reductants Ammonium compounds

Sub-classes:
Recent Application in this class:
#1
20260145129
2026-05-28

CARBON DIOXIDE CAPTURE AGENT AND CARBON DIOXIDE CAPTURE AND REDUCTION SYSTEM USING THE SAME

#2
20250222400
2025-07-10

PROCESS FOR STABILIZING NUTRIENTS IN A DISCHARGED ANAEROBIC DIGESTATE

#3
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

#4
20240342530
2024-10-17

QUARTERNARY AMMONIUM HALIDES FOR TREATING HALOGEN CONTAMINATION

#5
20240165556
2024-05-23

ENHANCING CO2 MINERALIZATION DURING CO2 SEQUESTRATION PROCESS IN BASALTIC FORMATIONS

#6
20240091751
2024-03-21

COPPER CHA ZEOLITE CATALYSTS

#7
20240075454
2024-03-07

CYCLOPROPENIMINES FOR ACTIVATION OF CARBON DIOXIDE

#8
20230405519
2023-12-21

DEVICE AND METHOD FOR CONTROLLING AMMONIA ESCAPE IN AMMONIA-BASED DECARBONIZATION SYSTEM

#9
20230081351
2023-03-16

Copper CHA zeolite catalysts

#10
20220226685
2022-07-21

Quarternary ammonium halides for treating halogen contamination

#11
20220080347
2022-03-17

Acid gas removal control apparatus, acid gas removal control method, and acid gas removing apparatus

#12
20210354083
2021-11-18

Sorbents for the oxidation and removal of mercury

#13
20210269379
2021-09-02

PROCESS FOR SULFUR REMOVAL FROM REFINERY OFF GAS

#14
20200368714
2020-11-26

SORBENTS COMPRISING ACTIVATED CARBON AND AMMONIUM PHOSPHATES

#15
20200261895
2020-08-20

Copper CHA zeolite catalysts

#16
20200230549
2020-07-23

Reducing mercury air and water emissions from a coal fired power plant within a FGD system using a biocide

#17
20190388823
2019-12-26

Submicron particle removal from gas streams

#18
20190270048
2019-09-05

Method for controlling aerosol production during absorption in ammonia desulfurization

#19
20190224610
2019-07-25

Submicron particle removal from gas streams

#20
20190151823
2019-05-23

Enhanced sorbent formulation for removal of mercury from flue gas

#21
20190144769
2019-05-16

Carbonaceous feedstock gasification power generation facility, and method for regulating drying gas carbonaceous feedstock

#22
20190126197
2019-05-02

Method for controlling aerosol production during absorption in ammonia desulfurization

#23
20190070554
2019-03-07

Method for controlling aerosol production during absorption in ammonia desulfurization

#24
20190055871
2019-02-21

Combustion system

#25
20190054448
2019-02-21

Denitration catalyst and method for producing the same

#26
20190032533
2019-01-31

Exhaust gas treatment systems utilizing a single electrically heated catalyst

#27
20190001257
2019-01-03

Wet flue gas desulfurization process and apparatus

#28
20180371974
2018-12-27

Fluid for purifying heat engines and methods for preparing said fluids by emulsification

#29
20180353904
2018-12-13

Composition made from urea for treating exhaust gases

#30
20180353899
2018-12-13

Process and system for removing sulfur dioxide from flue gas

#31
20180345216
2018-12-06

Fluid for carrying out pollution control in heat engines, and methods for preparing said fluids by producing a homogeneous solution

#32
20180319723
2018-11-08

Process for sulfur removal from refinery off gas

#33
20180304198
2018-10-25

Fluid for purifying heat engines using stable suspensions of metal colloidal particles, and methods for preparing said fluid

#34
20180280965
2018-10-04

Method for recycling denitration catalyst

#35
20180280946
2018-10-04

Catalyst for treating an exhaust gas, an exhaust system and a method

#36
20180280943
2018-10-04

Catalyst for treating an exhaust gas, an exhaust system and a method

#37
20180280941
2018-10-04

Method for recycling denitration catalyst

#38
20180280936
2018-10-04

Denitration catalyst and method for producing the same

#39
20180280875
2018-10-04

Combustion system

#40
20180272278
2018-09-27

Combustion system for ships

#41
20180133646
2018-05-17

Sorbents for the oxidation and removal of mercury

#42
20180117598
2018-05-03

Method to reduce mercury, acid gas, and particulate emissions

#43
20180078897
2018-03-22

Method and system for selective noncatalytic NOreduction

#44
20180056281
2018-03-01

Copper CHA zeolite catalysts

#45
20180022617
2018-01-25

Recovery of valuable resources from produced water and coal combustion products

#46
20170355920
2017-12-14

Process, method and system for removal of mercury in a gas dehydration process

#47
20170350288
2017-12-07

Product for the depollution of exhaust gases, especially from an internal combustion engine, and method for the depollution of exhaust gases using said product

#48
20170320816
2017-11-09

Submicron particle removal from gas streams

#49
20170267539
2017-09-21

Integrated process for carbon capture and energy production

#50
20170216826
2017-08-03

TRANSITION METAL-CONTAINING ALUMINOSILICATE ZEOLITE

#51
20170197178
2017-07-13

Reducing the emission of nitrogen oxide when starting up systems for producing nitric acid

#52
20170120189
2017-05-04

Method of inhibiting formation of dioxins and dioxin-like compounds in solid waste incineration flue gas

#53
20170113183
2017-04-27

Process and system for removing sulfur dioxide from flue gas

#54
20170072362
2017-03-16

Process for COcapture using carbonates and biocatalysts

#55
20170056853
2017-03-02

Enhanced sorbent formulation for removal of mercury from flue gas

#56
20170014766
2017-01-19

Catalyst system for gasoline combustion engines, having three-way catalysts and SCR catalyst

#57
20160369677
2016-12-22

Reductant dosing correction during no dosing periods

#58
20160361687
2016-12-15

PROCESS FOR SULFUR REMOVAL FROM REFINERY OFF GAS

#59
20160354724
2016-12-08

System for the purification of exhaust gas from an internal combustion engine

#60
20160347657
2016-12-01

Method for denitrification of bypass exhaust gases in a plant for producing cement clinker

#61
20160339410
2016-11-24

REACTIVE COMPOSITION BASED ON SODIUM BICARBONATE AND PROCESS FOR ITS PRODUCTION

#62
20160339386
2016-11-24

Reactive composition based on sodium bicarbonate and process for its production

#63
20160312677
2016-10-27

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#64
20160263585
2016-09-15

Method to reduce mercury, acid gas, and particulate emissions

#65
20160222864
2016-08-04

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#66
20160222854
2016-08-04

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#67
20160220948
2016-08-04

Flue gas desulfurization systems and methods of use

#68
20160145127
2016-05-26

System and method for reducing gas emissions from wet flue gas desulfurization waste water

#69
20160101412
2016-04-14

Copper CHA zeolite catalysts

#70
20160101411
2016-04-14

Copper CHA zeolite catalysts

#71
20150240752
2015-08-27

Exhaust system having NO catalyst in EGR circuit

#72
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

#73
20150139897
2015-05-21

Copper CHA zeolite catalysts

#74
20150132206
2015-05-14

Copper CHA zeolite catalysts

#75
20150118134
2015-04-30

Method and system for the purification of exhaust gas from an internal combustion engine

#76
20150113966
2015-04-30

Aftertreatment systems with reduced NO generation

#77
20150064086
2015-03-05

Electric reagent launcher for reduction of nitrogen

#78
20150050202
2015-02-19

Method to reduce mercury, acid gas, and particulate emissions

#79
20150023855
2015-01-22

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

#80
20140212349
2014-07-31

Process and device for the purification of waste gases

#81
20140099701
2014-04-10

Process for biocatalytic COcapture using dimethylmonoethanolamine, diethylmonoethanolamine or dimethylglycine

#82
20140083629
2014-03-27

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

#83
20140041364
2014-02-13

Catalytic reduction of NOx with high activity catalysts with NH3 reductant

#84
20140017119
2014-01-16

Method for controlling compounds and conditions in a wet flue gas desulfurization (WFGD) unit

#85
20130298996
2013-11-14

Injector grid with two stage mixer

#86
20130287664
2013-10-31

Method for exhaust gas after treatment

#87
20130149206
2013-06-13

System for processing mercury in flue gas

#88
20130108535
2013-05-02

Flue gas desulfurization

#89
20130071311
2013-03-21

Air pollution control system and air pollution control method

#90
20130058841
2013-03-07

NOx REDUCTION CATALYST SYSTEM, AND NOx REDUCTION METHOD

#91
20130034485
2013-02-07

Mercury removing system and mercury removing method

#92
20120294792
2012-11-22

ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts

#93
20120230899
2012-09-13

Mixed metal oxide catalyst for decomposition of nitrogen oxides

#94
20120216680
2012-08-30

Dispersed bubble reactor for enhanced gas-liquid-solids contact and mass transfer

#95
20120189521
2012-07-26

Air pollution control device and method for reducing amount of mercury in flue gas

#96
20120141347
2012-06-07

Non-zeolite base metal SCR catalyst

#97
20120141346
2012-06-07

Combustion flue gas NOtreatment

#98
20120129246
2012-05-24

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

#99
20120095119
2012-04-19

PROCESS FOR PRODUCING PURIFIED SYNTHESIS GAS

#100
20120087851
2012-04-12

P/S-TM-comprising zeolites for decomposition of NO

#101
20120085083
2012-04-12

SCR ammonia slip detection

#102
20120058921
2012-03-08

Process for producing a purified synthesis gas stream

#103
20120053046
2012-03-01

Method for treating SCR catalysts having accumulated iron compounds

#104
20120045378
2012-02-23

Method and devices for heating urea-containing materials in vehicle emission control system

#105
20110283680
2011-11-24

Method for purification of exhaust gas from a diesel engine

#106
20110269205
2011-11-03

USE OF ENZYME CATALYSTS IN CO2 PCC PROCESSES

#107
20110268637
2011-11-03

Air pollution control system and air pollution control method

#108
20110268635
2011-11-03

SCR on low thermal mass filter substrates

#109
20110263417
2011-10-27

Non-zeolite base metal SCR catalyst

#110
20110262330
2011-10-27

Alkanolamine-based carbon dioxide absorption solutions with reduced corrosivity

#111
20110250121
2011-10-13

Ammonia salts as regenerable COsorbents

#112
20110236282
2011-09-29

ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts

#113
20110217219
2011-09-08

SCRUBBING SOLUTION CONSISTING OF AQUEOUS AMMONIA SOLUTION AMINES FOR THE SCRUBBING OF GAS AND USE OF SUCH SOLUTION

#114
20110182790
2011-07-28

TRANSITION METAL-CONTAINING ALUMINOSILICATE ZEOLITE

#115
20110168019
2011-07-14

Removal of Acid Gases From A Gas Stream

#116
20110110841
2011-05-12

METHOD AND APPARATUS FOR PRODUCING AMMONIUM CARBONATE FROM UREA

#117
20110077437
2011-03-31

Process for sulfur removal from refinery off gas

#118
20110058999
2011-03-10

Low temperature selective catalytic reduction catalyst and associated systems and methods

#119
20110052453
2011-03-03

REMOVAL OF CARBON DIOXIDE FROM A FLUE GAS STREAM

#120
20110044873
2011-02-24

Fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide

#121
20110038774
2011-02-17

Method for Sequestering Carbon Dioxide

#122
20110008228
2011-01-13

Use of aqueous guanidinium formate solutions for the selective catalytic reduction of nitrogen oxides in exhaust gases of vehicles

#123
20110002828
2011-01-06

Mercury reduction system and mercury reduction method of flue gas containing mercury

#124
20110002827
2011-01-06

Mercury reduction system

#125
20110000371
2011-01-06

SYSTEM AND METHOD FOR REMOVING CARBON DIOXIDE FROM AN ATMOSPHERE AND GLOBAL THERMOSTAT USING THE SAME

#126
20100319542
2010-12-23

SCRUBBING OF AMMONIA WITH UREA AMMONIUM NITRATE SOLUTION

#127
20100307388
2010-12-09

FLUE GAS PURIFICATION PLANT

#128
20100290965
2010-11-18

Combustion flue gas NOtreatment

#129
20100247409
2010-09-30

Non-zeolite base metal SCR catalyst

#130
20100242454
2010-09-30

NH3-MONITORING OF AN SCR CATALYTIC CONVERTER

#131
20100221161
2010-09-02

Device for the purification of diesel exhaust gases

#132
20100212292
2010-08-26

Assembly and Method for Introducing a Reducing Agent into the Exhaust Pipe of an Exhaust System of an Internal Combustion Engine

#133
20100202935
2010-08-12

Flue gas desulfurization system

#134
20100183493
2010-07-22

Exhaust gas treating apparatus and method

#135
20100178216
2010-07-15

Exhaust gas purification apparatus

#136
20100170397
2010-07-08

Removal of carbon dioxide from flue gas with ammonia comprising medium

#137
20100170233
2010-07-08

System for admixing a reducing agent to an exhaust gas flow of an internal-combustion engine

#138
20100159406
2010-06-24

Combustion furnace humidification devices, systems and methods

#139
20100139488
2010-06-10

Flue gas scrubbing apparatus and process

#140
20100089110
2010-04-15

CARBON DIOXIDE SCRUBBING WITH AMMONIUM CARBONATE AND AMMONIA VAPOR CONTROL

#141
20100083828
2010-04-08

REMOVAL OF CARBON DIOXIDE FROM FLUE GAS STREAMS USING MIXED AMMONIUM/ALKALI SOLUTIONS

#142
20100074818
2010-03-25

Air pollution control apparatus and air pollution control method

#143
20100047144
2010-02-25

Method for the selective catalytic reduction of nitrogen oxides in exhaust gases of vehicles

#144
20100025634
2010-02-04

METHOD OF TREATING A HYDROCARBON GAS STREAM HAVING A HIGH CARBON DIOXIDE CONCENTRATION BY USING A LEAN SOLVENT CONTAINING AQUEOUS AMMONIA

#145
20100015022
2010-01-21

Aqueous solution for the treatment of exhaust gases of diesel engines

#146
20100006803
2010-01-14

METHOD OF TREATING A HIGH-PRESSURE HYDROCARBON STREAM HAVING A HIGH CARBON DIOXIDE CONTENT TO YIELD A HIGH PURITY HYDROCARBON GAS STREAM AND A SEQUESTRATION READY CARBON DIOXIDE GAS STREAM

#147
20100003168
2010-01-07

Apparatus for distinguishing liquid reducing agent and exhaust emission control apparatus of engine

#148
20090314720
2009-12-24

NOVEL COMPOSITIONS AND USES THEREOF

#149
20090297418
2009-12-03

Composite Catalyst Materials And Method For The Selective Reduction Of Nitrogen Oxides

#150
20090291840
2009-11-26

HONEYCOMB STRUCTURE

#151
20090285737
2009-11-19

Processes for reducing nitrogen oxides using copper CHA zeolite catalysts

#152
20090205496
2009-08-20

Method for inhibiting amine degradation during COcapture from a gas stream

#153
20090196811
2009-08-06

NOx REDUCTION CATALYST, NOx REDUCTION CATALYST SYSTEM, AND NOx REDUCTION METHOD

#154
20090155152
2009-06-18

Nitrogen oxide-reducing catalyst and method for reducing nitrogen oxide

#155
20090064667
2009-03-12

Device for delivering a reducing agent to an exhaust system of an internal combustion engine

#156
20090011177
2009-01-08

Exhaust gas cleaning catalyst and process for producing the same

#157
20080317999
2008-12-25

Gas catalysts comprising porous wall honeycombs

#158
20080308955
2008-12-18

Apparatus for mixing a fluid with a large gas stream, especially for introducing a reducing agent into a flue gas containing nitrogen oxides

#159
20080307969
2008-12-18

Method for Cleaning Exhaust Gases Containing Nitrous Gases

#160
20080289499
2008-11-27

System and method for removing carbon dioxide from an atmosphere and global thermostat using the same

#161
20080267847
2008-10-30

Process and system for removing hydrogen sulfide and mercaptans in ammonia-based desulfurization systems

#162
20080226545
2008-09-18

Copper CHA zeolite catalysts

#163
20080213147
2008-09-04

Process for treating a gas stream

#164
20080202107
2008-08-28

SCR on low thermal mass filter substrates

#165
20080202097
2008-08-28

Engine exhaust treatment system

#166
20080190762
2008-08-14

Exhaust gas treating system

#167
20080182747
2008-07-31

Special formulations for the removal of mercury and other pollutants present in combustion gases

#168
20080138264
2008-06-12

Method and device for removing mercury

#169
20080072576
2008-03-27

Exhaust emission purification apparatus for engine

#170
20080069749
2008-03-20

Method and systems for removing mercury from combustion exhaust gas

#171
20080014433
2008-01-17

METHOD FOR REMOVING VOLATILE ORGANIC COMPOUNDS (VOCs) FROM AN AIR STREAM

#172
20070269357
2007-11-22

Process for treating a gas stream

#173
20070259781
2007-11-08

Chemical formulations for removal of hazardous pollutants from combustion gases

#174
20070180835
2007-08-09

Optimizing post-combustion nitrogen oxide and sulfur dioxide reductions and improving combustion efficiency in coal fired boilers

#175
20070173404
2007-07-26

Process for producing an SCR catalyst

#176
20070154374
2007-07-05

Method for removing sulfur dioxide and other acid gases, mercury, and nitrogen oxides from a gas stream with the optional production of ammonia based fertilizers

#177
20070113741
2007-05-24

Detachable filtering apparatus for an air conditioning system and an installment method thereof

#178
20060117741
2006-06-08

Method for after treatment of exhaust gases, and exhaust gas after treatment array

#179
20060052902
2006-03-09

Method and system for SNCR optimization

#180
20050013755
2005-01-20

Combustion furnace humidification devices, systems & methods

#181
20050002852
2005-01-06

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

#182
20050002841
2005-01-06

Co-axial injection system

#183
17324230
2022-01-04

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

#184
17106090
2022-01-04

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

#185
15923031
2018-10-30

Method for controlling aerosol production during absorption in ammonia desulfurization