ClassID:

156835

F23J2215/10 - CPC Classification

Classification description:

Preventing emissions Nitrogen; Compounds thereof

Sub-classes:
Recent Application in this class:
#1
20250362016
2025-11-27

COMBUSTION SYSTEM ABLE TO OPERATE WITH RECYCLING OF THE COMBUSTION GAS

#2
20250303362
2025-10-02

SCR REACTOR SYSTEM, SCR REACTOR ASSEMBLY, SCR REACTOR APPARATUS, AND MIXING DEVICE, AND METHODS OF USING AND ASSEMBLING EACH OF THE SAME

#3
20250303358
2025-10-02

EXHAUST GAS TREATMENT SYSTEM, POWER GENERATION FACILITY COMPRISING SAME, AND EXHAUST GAS TREATMENT METHOD

#4
20250249406
2025-08-07

EXHAUST GAS TREATMENT APPARATUS, COMBUSTION FACILITY, AND EXHAUST GAS TREATMENT METHOD

#5
20240125472
2024-04-18

METHOD FOR REMOVING NITROGEN OXIDES FROM COMBUSTION FUMES WITH ON-SITE GENERATION OF AMMONIA

#6
20240058750
2024-02-22

IMPROVING CATALYTIC EFFICIENCY OF FLUE GAS FILTRATION THROUGH SALT FORMATION BY USING AT LEAST ONE OXIDIZING AGENT

#7
20230296244
2023-09-21

COMBUSTION DEVICE AND BOILER

#8
20230294032
2023-09-21

METHODS FOR REGENERATING A FILTER MEDIUM AND CLEANING FLUE GAS

#9
20230219036
2023-07-13

TREATMENT OF IMPURITIES IN PROCESS STREAMS

#10
20230173505
2023-06-08

Flue pipe systems and methods of purifying flue gases

#11
20230016404
2023-01-19

Arrangement for and a method of operating a steam boiler system

#12
20220381755
2022-12-01

SYNCHRONOUS SAMPLING AND MEASURING SYSTEM AND METHOD THEREOF FOR FLUE GAS PARTITION

#13
20220168722
2022-06-02

NOX REDUCTION CATALYST

#14
20220161225
2022-05-26

Method for treating flue gas from combustion units

#15
20220146096
2022-05-12

High-efficient clean, high-variable load rate coal-fired power generation system and operation method thereof

#16
20220081308
2022-03-17

Process for producing potassium sulphate

#17
20210325038
2021-10-21

Monolithic gas trap adsorber for high efficiency, cost effective, low-emission condensing furnace

#18
20210187440
2021-06-24

NOx ABATEMENT SYSTEM FOR A STATIONARY BURNING SYSTEM

#19
20210180250
2021-06-17

Method and apparatus for burning odor gas

#20
20210156560
2021-05-27

METHOD FOR REMOVING NITROGEN OXIDES FROM COMBUSTION FUMES WITH ON-SITE GENERATION OF AMMONIA

#21
20210080102
2021-03-18

Method for reducing nitrogen oxides in strip heat treatment furnaces

#22
20200378599
2020-12-03

Method for reducing NOemission

#23
20190275463
2019-09-12

Low pressure drop static mixing system

#24
20190186748
2019-06-20

SYSTEM AND METHOD FOR LOAD CONTROL WITH DIFFUSION COMBUSTION IN A STOICHIOMETRIC EXHAUST GAS RECIRCULATION GAS TURBINE SYSTEM

#25
20190137098
2019-05-09

METHOD FOR REMOVING NITROGEN OXIDES FROM COMBUSTION FUMES WITH ON-SITE GENERATION OF AMMONIA

#26
20190107048
2019-04-11

Method and equipment for combustion of ammonia

#27
20190099714
2019-04-04

Air pollution control system

#28
20190049112
2019-02-14

A DEVICE FOR THE ABATEMENT OF NOXIOUS EMISSION FROM HEATING PLANTS

#29
20180274779
2018-09-27

INFINITELY VARIABLE INJECTOR FOR IMPROVED SNCR PERFORMANCE

#30
20180200670
2018-07-19

Wet electrostatic gas cleaning system with non-thermal plasma for NOx reduction in exhaust

#31
20180193796
2018-07-12

Boiler

#32
20180187883
2018-07-05

Method and equipment for combustion of ammonia

#33
20180161725
2018-06-14

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

#34
20180147529
2018-05-31

Flue gas mixing apparatus

#35
20180118617
2018-05-03

NOx reduction process in a cement kiln manufacturing system

#36
20180021727
2018-01-25

Method and apparatus for operating a gas turbine power plant at low load conditions with stack compliant emissions levels

#37
20170284667
2017-10-05

METHOD FOR REMOVING NITROGEN OXIDES FROM COMBUSTION FUMES WITH ON-SITE GENERATION OF AMMONIA

#38
20170241641
2017-08-24

Control of combustion system emissions

#39
20170198634
2017-07-13

Renewable combined cycle low turbine boost

#40
20170159502
2017-06-08

Carbon dioxide capture interface for power generation facilities

#41
20170029328
2017-02-02

Method for controlling NOx concentration in exhaust gas in combustion facility using pulverized coal

#42
20170007959
2017-01-12

Limestone supply device and air pollution control system

#43
20160279570
2016-09-29

Non-catalytic denitration device and non-catalytic denitration method

#44
20160279565
2016-09-29

Dual injection grid arrangement

#45
20160243498
2016-08-25

Flue gas treatment device

#46
20160144317
2016-05-26

Catalytic converter reactor

#47
20160091197
2016-03-31

Fossil-fuel power plant and fossil-fuel power plant operation method

#48
20160053996
2016-02-25

Combustion and flue gas treatment system and SOremoval unit

#49
20160003473
2016-01-07

Boiler and a method for NOemission control from a boiler

#50
20150360174
2015-12-17

Air pollution control system and air pollution control method

#51
20150352490
2015-12-10

Air pollution control system and air pollution control method

#52
20150345785
2015-12-03

Infinitely variable injector for improved SNCR performance

#53
20150338095
2015-11-26

Method for conducting combustion in a furnace in order to limit the production of nitrogen oxides, and installation for implementing said method

#54
20150252700
2015-09-10

Assembly and method for reducing ammonia in exhaust of internal combustion engines

#55
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

#56
20150204214
2015-07-23

Method and apparatus for operating a gas turbine power plant at low load conditions with stack compliant emissions levels

#57
20150202571
2015-07-23

Exhaust gas treatment apparatus

#58
20150144037
2015-05-28

Nano-hybrid catalyst for NOremoval

#59
20150118136
2015-04-30

Absorbent for desulfurization of combustion gas and method of treating combustion gas using the same

#60
20150073572
2015-03-12

Automatic tuning control system for air pollution control systems

#61
20150064086
2015-03-05

Electric reagent launcher for reduction of nitrogen

#62
20150023856
2015-01-22

Method of regenerating NOremoval catalyst and method of operating heavy-oil fired combustion apparatus

#63
20140356236
2014-12-04

Denitrification apparatus

#64
20140153912
2014-06-05

Tank with heating element for selective catalytic reduction

#65
20140150445
2014-06-05

System and method for load control with diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system

#66
20140138368
2014-05-22

Selective catalytic reduction tank with heating element

#67
20140134061
2014-05-15

Urea decomposition and improved SCR NOx reduction on industrial and small utility boilers

#68
20140096532
2014-04-10

System and method for urea decomposition to ammonia in a side stream for selective catalytic reduction

#69
20140056785
2014-02-27

Ammonia detoxification device

#70
20140050644
2014-02-20

Charge-induced selective reduction of nitrogen

#71
20140050626
2014-02-20

Catalytic filter module and catalytic filter system comprising same

#72
20140010748
2014-01-09

System using selective catalytic reduction for improving low-temperature De-NOx efficiency and reducing yellow plume

#73
20130333597
2013-12-19

Methods and systems for flue gas denitrification

#74
20130312424
2013-11-28

Renewable combined cycle low turbine boost

#75
20130298809
2013-11-14

Method for controlling NOx concentration in exhaust gas in combustion facility using pulverized coal

#76
20130213511
2013-08-22

Ammonia injection device

#77
20130196271
2013-08-01

Material utilization with an electropositive metal

#78
20130178677
2013-07-11

Method and a system for converting carbon dioxide into chemical starting materials

#79
20130156671
2013-06-20

Method and apparatus to inject reagent in SNCR/SCR emission system for boiler

#80
20130108534
2013-05-02

Method for Removing Nitrogen Oxides from Combustion Fumes with On-Site Generation of Ammonia

#81
20130104519
2013-05-02

AMMONIA INJECTION SYSTEMS

#82
20130074746
2013-03-28

METHOD AND APPARATUS FOR REDUCTION OF POLLUTANTS IN COMBUSTION EFFLUENT

#83
20130055937
2013-03-07

FLUE GAS DESULFURIZATION DEVICE, COMBUSTION SYSTEM AND COMBUSTION METHOD

#84
20130052096
2013-02-28

Exhaust gas treatment system with carbon dioxide chemical absorption equipment

#85
20130047903
2013-02-28

Method of regenerating NOremoval catalyst and method of operating heavy-oil fired combustion apparatus

#86
20120325092
2012-12-27

Exhaust gas treatment system equipped with carbon dioxide removal device

#87
20120299205
2012-11-29

System for denitrifying exhaust gas capable of preventing blockages in a urea water inflow path and an injection nozzle, and device for supplying urea water capable of preventing the coagulation of urea water

#88
20120237407
2012-09-20

Handling of acids from compressed oxyfuel-derived CO

#89
20120222591
2012-09-06

Method of and Apparatus for Selective Catalytic NOx Reduction in a Power Boiler

#90
20120160142
2012-06-28

Method of and Apparatus for Selective Catalytic NOx Reduction in a Power Boiler

#91
20120107208
2012-05-03

Gas treatment method and apparatus for circulating fluidized-bed gasification system

#92
20120102970
2012-05-03

Systems, methods, and apparatus for regenerating a catalytic material

#93
20120100052
2012-04-26

System and method for protection of SCR catalyst and control of multiple emissions

#94
20120096835
2012-04-26

Feedforward selective catalytic reduction system for turbine engines

#95
20120063962
2012-03-15

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

#96
20120009105
2012-01-12

Handling of acids from compressed oxyfuel-derived CO

#97
20110265697
2011-11-03

Circulating Fluidized Bed Combustor and a Method of Operating a Circulating Fluidized Bed Combustor

#98
20110262331
2011-10-27

Air pollution control system and air pollution control method

#99
20110158878
2011-06-30

Method and device for processing exhaust gas

#100
20110150716
2011-06-23

Exhaust gas denitrizer

#101
20110142739
2011-06-16

Multi-compartment overfire air and N-agent injection method for nitrogen oxide reduction in flue gas

#102
20110123403
2011-05-26

AIR POLLUTION CONTROL APPARATUS AND AIR POLLUTION CONTROL SYSTEM

#103
20110116981
2011-05-19

Air pollution control apparatus and air pollution control system

#104
20110061385
2011-03-17

Methods and systems for generating power from a turbine using pressurized nitrogen

#105
20110033359
2011-02-10

COOLED NAOH FLUE GAS SCRUBBING PRIOR TO CO2 REMOVAL

#106
20110023841
2011-02-03

METHOD FOR OPERATING A COMBUSTION UNIT AND A COMBUSTION UNIT

#107
20110005438
2011-01-13

Method For The Selective Catalytic Reduction Of Nitrogen Oxides In Combustion Flue Gases And System For Implementing It

#108
20100329955
2010-12-30

Wet scrubber additive for simultaneous removal of oxides and metals from a gas

#109
20100322835
2010-12-23

Heat recovery device for a boiler

#110
20100183493
2010-07-22

Exhaust gas treating apparatus and method

#111
20100173255
2010-07-08

NOx-REDUCTION APPARATUS, METHOD OF MAKING, FURNACE, HVAC UNIT, AND BUILDING

#112
20100159406
2010-06-24

Combustion furnace humidification devices, systems and methods

#113
20100099914
2010-04-22

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

#114
20100080747
2010-04-01

Purifying carbon dioxide and producing acid

#115
20100080745
2010-04-01

Multi-stage process for purifying carbon dioxide and producing acid

#116
20100061906
2010-03-11

Method and a device for removing nitrogen oxides and sulphur trioxide from a process gas

#117
20100058962
2010-03-11

Method for injecting a substance into a boiler of a waste incineration plant

#118
20090220401
2009-09-03

Exhaust smoke denitrating apparatus and method of exhaust smoke denitration

#119
20090035709
2009-02-05

Gas combustion apparatus

#120
20090025390
2009-01-29

Low CO2 Thermal Powerplant

#121
20080317652
2008-12-25

Emission control system internal to a boiler

#122
20080286704
2008-11-20

Method of burning a nitrogen-containing fuel

#123
20080241031
2008-10-02

Fast-regenerable sulfur dioxide adsorbents for diesel engine emission control

#124
20080196763
2008-08-21

Ammonia vaporization system using non-flue gas intermediate heat transfer medium

#125
20080175774
2008-07-24

Methods and systems for reducing NOemissions in industrial combustion systems

#126
20080110381
2008-05-15

Multi-compartment overfire air and N-agent injection method and system for nitrogen oxide reduction in flue gas

#127
20070217985
2007-09-20

Method of removing nitrogen oxides from flue gases

#128
20060230996
2006-10-19

Method of operating furnace to reduce emissions

#129
20060141414
2006-06-29

Gas combustion treatment method and apparatus therefor

#130
20060052902
2006-03-09

Method and system for SNCR optimization

#131
20060008757
2006-01-12

Methods and systems for operating combustion systems

#132
20050238549
2005-10-27

Electronic controls for pollutant removal

#133
20050233274
2005-10-20

Steam-generating combustion system and method for emission control using oxygen enhancement

#134
20050172616
2005-08-11

Device for the purification of exhaust gases consisting of fluorine-containing compounds in a combustion reactor

#135
20050126455
2005-06-16

Photolytic method of improving mercury capture in fossil (coal) fired systems

#136
20050074383
2005-04-07

Process and injection apparatus for reducing the concentration of NOX pollutants in an effluent

#137
20050051154
2005-03-10

Method and apparatus for reducing nitrogen dioxide (NO2) emissions in a flueless heating appliance

#138
20050013755
2005-01-20

Combustion furnace humidification devices, systems & methods

#139
17399914
2023-11-07

Flue cap with filter