ClassID:

156027

F23C2201/101 - CPC Classification

Classification description:

Staged combustion; Furnace staging in vertical direction, e.g. alternating lean and rich zones

Recent Application in this class:
#1
20250035303
2025-01-30

COMBUSTION DEVICE

#2
20240410569
2024-12-12

Biomass Fuel Burning Furnace

#3
20220146090
2022-05-12

PETROLEUM RESIDUUM BURNING BOILER AND COMBUSTION METHOD THEREOF

#4
20220145410
2022-05-12

METHOD FOR OPERATING A BLAST FURNACE

#5
20220065447
2022-03-03

Velocity damper for a recovery boiler

#6
20200240635
2020-07-30

Velocity damper for a recovery boiler

#7
20190323705
2019-10-24

Over fire arrangement and method

#8
20190186732
2019-06-20

Low NOx burner with exhaust gas recycle and partial premix

#9
20190113222
2019-04-18

Reduced fouling in staged combustion

#10
20190063745
2019-02-28

COMBUSTION PLANT AND METHOD FOR OPERATING A COMBUSTION PLANT

#11
20180237323
2018-08-23

Double-staged oxy-fuel burner

#12
20180058687
2018-03-01

Overfire air system for low nitrogen oxide tangentially fired boiler

#13
20170321885
2017-11-09

PROCESS AND APPARATUS FOR MAKING A MINERAL MELT

#14
20160370003
2016-12-22

Burner with only oxidation reaction space for reactor with only reduction reaction space

#15
20160370002
2016-12-22

Burner with combustion air driven jet pump

#16
20160153657
2016-06-02

Combustion system for a boiler

#17
20160146463
2016-05-26

Combustion device

#18
20160061446
2016-03-03

Combustion system

#19
20150079526
2015-03-19

Oxy-fired boiler unit and method of operating the same

#20
20140272736
2014-09-18

Low NOx combustion method and apparatus

#21
20140216309
2014-08-07

System and method for increasing the service life and/or catalytic activity of an SCR catalyst and control of multiple emissions

#22
20130156667
2013-06-20

System and method for increasing the service life and/or catalytic activity of an SCR catalyst and control of multiple emissions

#23
20120244479
2012-09-27

Combustion System Using Recycled Flue Gas to Boost Overfire Air

#24
20120174838
2012-07-12

Combustion Apparatus

#25
20120152158
2012-06-21

Solid-fuel-fired burner and solid-fuel-fired boiler

#26
20120148961
2012-06-14

Method and arrangement for optimising combustion conditions in a fluidised-bed boiler

#27
20120145052
2012-06-14

Apparatus and method of controlling the thermal performance of an oxygen-fired boiler

#28
20120137938
2012-06-07

Pulverized coal boiler

#29
20120079969
2012-04-05

Combustion controller

#30
20120024206
2012-02-02

METHOD FOR REDUCING NITROGEN OXIDE EMISSIONS IN OXYFUEL COMBUSTION

#31
20110302901
2011-12-15

ZONAL MAPPING FOR COMBUSTION OPTIMIZATION

#32
20110253066
2011-10-20

W-STAGED FLAME BOILER FOR MULTI-STAGE COMBUSTION WITH MULTI-EJECTION AND ITS METHOD THEREOF

#33
20110229388
2011-09-22

System and method for increasing the service life and/or catalytic activity of an SCR catalyst and control of multiple emissions

#34
20110197829
2011-08-18

Upside-down type low NOx boiler

#35
20110142739
2011-06-16

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

#36
20110061575
2011-03-17

Combustion control system and method using spatial feedback and acoustic forcings of jets

#37
20110033807
2011-02-10

Method for decreasing nitrogen oxides of a pulverized coal boiler using burners of internal combustion type

#38
20100212556
2010-08-26

Systems for staged combustion of air and fuel

#39
20100203461
2010-08-12

COMBUSTION SYSTEMS AND PROCESSES FOR BURNING FOSSIL FUEL WITH REDUCED EMISSIONS

#40
20100143852
2010-06-10

Regulating overfire air in a boiler using an overfire air tube damper

#41
20100116183
2010-05-13

USE OF HYDROCARBON EMULSIONS AS A REBURN FUEL TO REDUCE NOX EMISSIONS

#42
20100077946
2010-04-01

Process temperature control in oxy/fuel combustion system

#43
20100077945
2010-04-01

CONVECTIVE SECTION COMBUSTION

#44
20090214989
2009-08-27

Method and apparatus for staged combustion of air and fuel

#45
20090214988
2009-08-27

Combustion systems and processes for burning fossil fuel with reduced nitrogen oxide emissions

#46
20090183660
2009-07-23

Method for controlling the combustion air supply in a steam generator that is fueled with fossil fuels

#47
20090136880
2009-05-28

Method of operating a pyrolysis heater for reduced NOx

#48
20090087805
2009-04-02

In-Furnace Gas Injection Port

#49
20090084346
2009-04-02

GAS FLOW INJECTOR AND METHOD OF INJECTING GAS INTO A COMBUSTION SYSTEM

#50
20090007827
2009-01-08

System and Method for Minimizing Nitrogen Oxide (NOx) Emissions in Cyclone Combustors

#51
20080286706
2008-11-20

Heater and method of operation

#52
20080283039
2008-11-20

Overfire air tube damper for boiler and method for regulating overfire air

#53
20080241029
2008-10-02

Methods and apparatus for removing mercury from combustion flue gas

#54
20080241028
2008-10-02

Methods and apparatus to facilitate reducing mercury emissions

#55
20080220387
2008-09-11

Combustion apparatus to reduce flue gas NOx by injection of n-agent droplets and gas in overfire air

#56
20080149012
2008-06-26

Method For Reducing Nitrogen Oxide Emissions of a Bubbling Fluidized Bed Boiler and an Air Distribution System of a Bubbling Fluidized Bed Boiler

#57
20080110381
2008-05-15

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

#58
20080105176
2008-05-08

STAGED-COAL INJECTION FOR BOILER RELIABILITY AND EMISSIONS REDUCTION

#59
20070295249
2007-12-27

Method for reducing nitrogen oxide emissions of a recovery boiler, and a recovery boiler

#60
20070231231
2007-10-04

Method for reducing nitrogen oxide emissions

#61
20070215022
2007-09-20

Low NOx combustion

#62
20070128096
2007-06-07

Integrated approach to reduction of mercury emissions

#63
20060275724
2006-12-07

Dynamic burner reconfiguration and combustion system for process heaters and boilers

#64
20060257800
2006-11-16

Oxy-fuel reburn: a method for NOreduction by fuel reburning with oxygen

#65
20060230996
2006-10-19

Method of operating furnace to reduce emissions

#66
20060115779
2006-06-01

Overfiring air port, method for manufacturing air port, boiler, boiler facility, method for operating boiler facility and method for improving boiler facility

#67
20060090677
2006-05-04

After-air nozzle for two-stage combustion boiler, and a two-stage combustion boiler, boiler and combustion method using the same

#68
20060029895
2006-02-09

Fuel injector for low NOx and enhanced flame stabilization

#69
20060021554
2006-02-02

Mercury reduction system and method in combustion flue gas using staging

#70
20060008757
2006-01-12

Methods and systems for operating combustion systems

#71
20050279263
2005-12-22

Fuel staging methods for low NOx tangential fired boiler operation

#72
20050257721
2005-11-24

Solid fuel boiler and method of operating combustion apparatus

#73
20050181318
2005-08-18

Method for in-furnace reduction flue gas acidity

#74
20050158223
2005-07-21

Mercury reduction system and method in combustion flue gas using staging

#75
20050106516
2005-05-19

Method to reduce flue gas NOx

#76
20050103243
2005-05-19

Mercury reduction system and method in combustion flue gas using staging

#77
20050036926
2005-02-17

Mercury reduction system and method in combustion flue gas using coal blending