ClassID:

155986

F23C9/00 - CPC Classification

Classification description:

Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber

Sub-classes:
Recent Application in this class:
#1
20260008002
2026-01-08

GAS SEPARATION SYSTEM

#2
20250362016
2025-11-27

COMBUSTION SYSTEM ABLE TO OPERATE WITH RECYCLING OF THE COMBUSTION GAS

#3
20250334265
2025-10-30

COMBUSTOR AND AMMONIA ENGINE SYSTEM

#4
20250327574
2025-10-23

BURNER SYSTEM

#5
20250297774
2025-09-25

PROCESS AND APPARATUS FOR COMBUSTING HYDROGEN AND RECYCLING COMBUSTION PRODUCTS

#6
20250297737
2025-09-25

METHOD AND SYSTEM FOR OXYGEN BOOSTED FLUE GAS RECYCLING TO FACILITE CARBON CAPTURE IN AN AIR FIRED BURNER

#7
20250290627
2025-09-18

ARRANGEMENTS FOR CHEMICAL LOOPING COMBUSTION SYSTEMS

#8
20250283596
2025-09-11

GRATE ARRANGEMENT AND METHOD

#9
20250283595
2025-09-11

POLYGENERATION SCHEME WITH ZERO CARBON EMISSION

#10
20250116398
2025-04-10

CATALYTIC BURNER AND HYDROGEN BOILER FOR WATER HEATING

#11
20250102141
2025-03-27

BURNER WITH INTERNAL FUME RECIRCULATION SYSTEM

#12
20250102140
2025-03-27

COMBUSTION SYSTEM USING OXYGEN AND HYDROGEN

#13
20250052497
2025-02-13

Arrangement for Heating a Process Gas of an Iron Ore Pelletizing Plant

#14
20250052416
2025-02-13

MIXED COMBUSTION SYSTEM FUELED WITH AMMONIA, HYDROGEN AND NATURAL GAS

#15
20250035305
2025-01-30

Burner and Method for Forming a Flame in a Furnace by a Burner

#16
20240302037
2024-09-12

Methods and systems for denitrogenation combustion and CO capture and utilization in gas boilers

#17
20240280259
2024-08-22

BRIGHT RADIATOR

#18
20240255140
2024-08-01

DARK RADIATOR

#19
20240110699
2024-04-04

PROCESS BURNER WITH DISTAL FLAME HOLDER

#20
20230288059
2023-09-14

GAS-BURNER DEVICE AND METHOD FOR OPERATING A GAS-BURNER DEVICE

#21
20230139832
2023-05-04

Water heater receiving humidified air

#22
20230062586
2023-03-02

Combustible ice efficient combustion system

#23
20230033218
2023-02-02

Low NOand CO combustion burner method and apparatus

#24
20220381433
2022-12-01

BURNER SYSTEM

#25
20220316700
2022-10-06

Low NOx burner with bypass conduit

#26
20220205633
2022-06-30

PILOT STABILIZED BURNER

#27
20220146202
2022-05-12

Enhancement of thermochemical regeneration operation

#28
20220145410
2022-05-12

METHOD FOR OPERATING A BLAST FURNACE

#29
20220042678
2022-02-10

Radiant tube recuperative burner assembly

#30
20210140635
2021-05-13

Apparatus for Oil Flow Control

#31
20210048189
2021-02-18

Catalytic oxidizer

#32
20200291901
2020-09-17

Total recycling system of capturing, conversion and utilization of flue gas from factory, power plant and refinery

#33
20200191385
2020-06-18

Low NOand CO combustion burner method and apparatus

#34
20200141573
2020-05-07

Combustion system including a mixing tube and a flame holder

#35
20190346177
2019-11-14

CONCENTRATED SOLAR RECEIVER AND REACTOR SYSTEMS COMPRISING HEAT TRANSFER FLUID

#36
20190337832
2019-11-07

COMBUSTION METHOD FOR LOW VELOCITY REACTANT STREAMS

#37
20190277493
2019-09-12

OXYGEN-FUEL COMBUSTER AND METHOD FOR INJECTING OXYGEN AND FUEL

#38
20190249871
2019-08-15

Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system

#39
20190186748
2019-06-20

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

#40
20190113223
2019-04-18

METHOD FOR MINIMIZING NOx EMISSIONS DURING POX BASED SYNGAS PLANT STARTUP

#41
20180299122
2018-10-18

Method for reducing harmful gas emissions from a gas-fired sealed combustion chamber forced-draught boiler and boiler so obtained

#42
20180231242
2018-08-16

Dual mode regenerative burner system and a method of heating a furnace using a dual mode regenerative burner system

#43
20180171869
2018-06-21

Turbine including flue gas recirculation combustor

#44
20180154300
2018-06-07

Carbon dioxide recovery

#45
20180118600
2018-05-03

Combustion method for low velocity reactant streams

#46
20180072134
2018-03-15

Combustion chamber assembly unit for a fuel-operated vehicle heater

#47
20180051875
2018-02-22

Apparatus for reducing emissions when burning various fuels

#48
20170343213
2017-11-30

Exhaust duct

#49
20170328559
2017-11-16

Modulating burner with venturi damper

#50
20170284668
2017-10-05

Method and apparatus for controlling inlet temperature of dedusting apparatus in oxygen combustion boiler equipment

#51
20170284227
2017-10-05

Method for generating energy, in which an electropositive metal is atomized and/or sprayed and combusted with a reaction gas, and a device for carrying out said method

#52
20170276346
2017-09-28

APPARATUS AND METHOD FOR ELECTRICALLY STABILIZED COMBUSTION

#53
20170261201
2017-09-14

Method for combustion of multiple fuels

#54
20170254531
2017-09-07

DEVICE FOR THE THERMAL POST-COMBUSTION OF EXHAUST AIR

#55
20170241638
2017-08-24

Methods and systems for controlling the products of combustion

#56
20170234529
2017-08-17

Method and apparatus for improved firing of biomass and other solid fuels for steam production and gasification

#57
20170113185
2017-04-27

Systems and methods for removing combustion products from a power generation cycle

#58
20170077376
2017-03-16

Thermoelectric power generator and combustion apparatus

#59
20160327264
2016-11-10

Venturi nozzle for a gas combustor

#60
20160320056
2016-11-03

Pressurized oxycombustion process

#61
20160305656
2016-10-20

Low-NOx combustion method

#62
20160245507
2016-08-25

System and method for combustion of multiple fuels

#63
20160225975
2016-08-04

Combustion module having substantially uniform temperature

#64
20160223202
2016-08-04

Systems and methods for high volumetric oxidant flow in gas turbine engine with exhaust gas recirculation

#65
20160222884
2016-08-04

Turbine system with exhaust gas recirculation, separation and extraction

#66
20160201904
2016-07-14

Burner assembly and method for combustion of gaseous or liquid fuel

#67
20160201901
2016-07-14

Heater device for heating liquefied gas

#68
20160195338
2016-07-07

Combustion assisting fluid preheating device for oxygen combustion system

#69
20160195014
2016-07-07

Membrane technology for use in a power generation process

#70
20160169504
2016-06-16

Device for preventing steam from being produced in flue gas cooler for oxyfuel combustion boiler

#71
20160146462
2016-05-26

PLANT, COMBUSTION APPARATUS, AND METHOD FOR REDUCTION OF NOx EMISSIONS

#72
20160145700
2016-05-26

METHOD FOR HEATING A BLAST FURNACE STOVE

#73
20160109116
2016-04-21

Method and apparatus for improved firing of biomass and other solid fuels for steam production and gasification

#74
20160061110
2016-03-03

Low NOturbine exhaust fuel burner assembly

#75
20160025336
2016-01-28

Venturi nozzle for a gas combustor

#76
20160024604
2016-01-28

METHOD FOR HEATING A BLAST FURNACE STOVE

#77
20160010548
2016-01-14

System and method for a turbine combustor

#78
20160010493
2016-01-14

System and method of control for a gas turbine engine

#79
20150354809
2015-12-10

Modulating burner with venturi damper

#80
20150354808
2015-12-10

RADIANT HEATING PIPE

#81
20150330622
2015-11-19

FLUIDIZED BED BOILER AND METHOD FOR ENHANCING FURNACE EFFICIENCY OF THE SAME

#82
20150316254
2015-11-05

Combustion apparatus

#83
20150285560
2015-10-08

Plate heat exchanger plate for a plate heat exchanger and a plate heat exchanger comprising such plates

#84
20150219396
2015-08-06

Flue gas recirculation method and system for combustion systems

#85
20150167971
2015-06-18

Burner with oxygen and fuel mixing apparatus

#86
20150153066
2015-06-04

METHOD OF PROVIDING HEAT TO A HEAT EXCHANGER APPARATUS VIA A BURNER

#87
20150153065
2015-06-04

BURNER

#88
20150111159
2015-04-23

METHOD FOR OPERATING A MULTI-GAS BURNER AND A MULTI-GAS BURNER

#89
20150033757
2015-02-05

System and method for a gas turbine engine sensor

#90
20150033749
2015-02-05

System and method for barrier in passage of combustor of gas turbine engine with exhaust gas recirculation

#91
20150010871
2015-01-08

Mixing of recycle gas with fuel gas to a burner

#92
20150007576
2015-01-08

Gas turbine power plant with non-homogeneous input gas

#93
20140373762
2014-12-25

Oxyfuel combustion boiler system

#94
20140318427
2014-10-30

Methods and systems for controlling the products of combustion

#95
20140277785
2014-09-18

Chemically heated hot emitter generator system

#96
20140272736
2014-09-18

Low NOx combustion method and apparatus

#97
20140261245
2014-09-18

Module-based oxy-fuel boiler

#98
20140230703
2014-08-21

OXY-FUEL COMBUSTION WITH INTEGRATED POLLUTION CONTROL

#99
20140208994
2014-07-31

Fluid distribution and mixing grid for mixing gases

#100
20140199640
2014-07-17

Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system

#101
20140182303
2014-07-03

System and method for a turbine combustor

#102
20140182302
2014-07-03

System and method for a turbine combustor

#103
20140182301
2014-07-03

System and method for a turbine combustor

#104
20140170572
2014-06-19

Leakage reduction system in power plant operations

#105
20140150445
2014-06-05

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

#106
20140144355
2014-05-29

Oxy-fuel plant with flue gas compression and method

#107
20140123672
2014-05-08

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

#108
20140123669
2014-05-08

System and method for diffusion combustion with oxidant-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system

#109
20140123668
2014-05-08

System and method for diffusion combustion with fuel-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system

#110
20140123660
2014-05-08

System and method for a multi-wall turbine combustor

#111
20140080073
2014-03-20

High pressure fossil fuel oxy-combustion system with carbon dioxide capture for interface with an energy conversion system

#112
20140076214
2014-03-20

Method and plant for the treatment of materials, in particular waste materials and refuse

#113
20140076213
2014-03-20

Process for enabling carbon-capture from existing combustion processes

#114
20140065558
2014-03-06

Electrically stabilized burner

#115
20140011140
2014-01-09

HEATING DEVICE AND METHOD FOR ITS OPERATIONS

#116
20140008449
2014-01-09

Vehicle heating system

#117
20130340658
2013-12-26

EXHAUST GAS RECYCLING CONTROL SYSTEM OF COMBUSTION DEVICE

#118
20130340404
2013-12-26

Hot EGR driven by turbomachinery

#119
20130302737
2013-11-14

Furnace burner radiation shield

#120
20130276723
2013-10-24

Method and apparatus for improved firing of biomass and other solid fuels for steam production and gasification

#121
20130273481
2013-10-17

Boiler and operating method of same

#122
20130260324
2013-10-03

Fired heater and method of using the same

#123
20130252184
2013-09-26

Boiler combustion system and operation method therefor

#124
20130244190
2013-09-19

Oxygen combustion system and method for operating same

#125
20130236845
2013-09-12

GRADUAL OXIDATION WITH HEAT CONTROL

#126
20130236841
2013-09-12

Staged gradual oxidation

#127
20130236369
2013-09-12

Gradual oxidation with heat exchange media

#128
20130232947
2013-09-12

Staged gradual oxidation

#129
20130232942
2013-09-12

Gradual oxidation with gradual oxidizer warmer

#130
20130232940
2013-09-12

Gradual oxidation below flameout temperature

#131
20130232874
2013-09-12

Gradual oxidation and autoignition temperature controls

#132
20130227961
2013-09-05

Oxy-combustion turboexpander system

#133
20130213378
2013-08-22

BURNER SYSTEM FOR A FURNACE

#134
20130200625
2013-08-08

Sweep-based membrane gas separation integrated with gas-fired power production and CO2 recovery

#135
20130139810
2013-06-06

Oxygen transport reactor-based oven

#136
20130139738
2013-06-06

Method and a device for cleaning a carbon dioxide rich flue gas

#137
20130133337
2013-05-30

HYDROGEN ASSISTED OXY-FUEL COMBUSTION

#138
20130125798
2013-05-23

Burner with oxygen and fuel mixing apparatus

#139
20130125554
2013-05-23

Systems and methods for exhaust gas extraction

#140
20130108518
2013-05-02

METHOD AND SYSTEM FOR CAPTURING CARBON DIOXIDE IN AN OXYFIRING PROCESS WHERE OXYGEN IS SUPPLIED BY REGENERABLE METAL OXIDE SORBENTS

#141
20130098054
2013-04-25

Method and apparatus for detecting combustion conditions in combustors of a sequential combustion gas turbine engine

#142
20130086917
2013-04-11

APPARATUS FOR HEAD END DIRECT AIR INJECTION WITH ENHANCED MIXING CAPABILITIES

#143
20130067927
2013-03-21

SYSTEM AND METHOD FOR CONTROLLING COMBUSTION INSTABILITIES IN GAS TURBINE SYSTEMS

#144
20130058853
2013-03-07

Hybrid parallel / serial process for carbon dioxide capture from combustion exhaust gas using a sweep-based membrane separation step

#145
20130055937
2013-03-07

FLUE GAS DESULFURIZATION DEVICE, COMBUSTION SYSTEM AND COMBUSTION METHOD

#146
20130047900
2013-02-28

Stabilizing combustion of oxygen and flue gas

#147
20120301834
2012-11-29

HIGH PRESSURE OXY-FIRED COMBUSTION SYSTEM

#148
20120272657
2012-11-01

Membrane technology for use in a power generation process

#149
20120237882
2012-09-20

Flue gas recirculation method and system for combustion systems

#150
20120222593
2012-09-06

Oxy-fuel combustion with integrated pollution control

#151
20120216539
2012-08-30

Module-based oxy-fuel boiler

#152
20120214108
2012-08-23

Heating apparatus

#153
20120210717
2012-08-23

APPARATUS FOR INJECTING FLUID INTO A COMBUSTION CHAMBER OF A COMBUSTOR

#154
20120208136
2012-08-16

SYSTEM AND METHOD FOR OPERATING A COMBUSTOR

#155
20120208135
2012-08-16

SYSTEM AND METHOD FOR OPERATING A COMBUSTOR

#156
20120145052
2012-06-14

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

#157
20120144837
2012-06-14

Low Emission Power Generation and Hydrocarbon Recovery Systems and Methods

#158
20120143382
2012-06-07

Optimized integrated controls for oxy-fuel combustion power plant

#159
20120131925
2012-05-31

Combustor systems and combustion burners for combusting a fuel

#160
20120129113
2012-05-24

SYSTEM AND METHOD OF MANAGING ENERGY UTILIZED IN A FLUE GAS PROCESSING SYSTEM

#161
20120125240
2012-05-24

SYSTEM AND METHOD OF MANAGING ENERGY UTILIZED IN A FLUE GAS PROCESSING SYSTEM

#162
20120096870
2012-04-26

Combined cycle power plant including a carbon dioxide collection system

#163
20120090328
2012-04-19

Combined cycle plant including chilled ammonia based COcapture unit and utilizing system produced nitric acid

#164
20120090326
2012-04-19

Combined cycle with recirculation plant inlet oxygen concentration system

#165
20120060728
2012-03-15

Power station and method for operating the same

#166
20120051990
2012-03-01

Exhaust gas cleaning apparatus and method for cleaning an exhaust gas

#167
20120040295
2012-02-16

METHOD AND AN APPARATUS FOR PRODUCING CARBON DIOXIDE AND THERMAL ENERGY

#168
20110300493
2011-12-08

Methods and systems for controlling the products of combustion

#169
20110271881
2011-11-10

Methods, compositions, and burner systems for reducing emissions of carbon dioxide gas into the atmosphere

#170
20110265445
2011-11-03

Method for Reducing CO2 Emissions in a Combustion Stream and Industrial Plants Utilizing the Same

#171
20110220037
2011-09-15

Oxygen-enriched air assisting system for improving the efficiency of cogeneration system

#172
20110219778
2011-09-15

Power generation process with partial recycle of carbon dioxide

#173
20110219777
2011-09-15

Power generation process with partial recycle of carbon dioxide

#174
20110179800
2011-07-28

Sequential combustor gas turbine including a plurality of gaseous fuel injection nozzles and method for operating the same

#175
20110167828
2011-07-14

COMBUSTOR ASSEMBLY FOR A TURBINE ENGINE THAT MIXES COMBUSTION PRODUCTS WITH PURGE AIR

#176
20110143291
2011-06-16

FLUE GAS RECIRCULATION METHOD AND SYSTEM FOR COMBUSTION SYSTEMS

#177
20110139046
2011-06-16

Emissionless Oxyfuel Combustion Process and a Combustion System Using Such a Process

#178
20110129408
2011-06-02

Method and system for capturing carbon dioxide in an oxyfiring process where oxygen is supplied by regenerable metal oxide sorbents

#179
20110126742
2011-06-02

Method and apparatus of controlling flow rate of primary recirculating exhaust gas in oxyfuel combustion boiler

#180
20110111355
2011-05-12

Device for controlling regenerative burners

#181
20110104624
2011-05-05

METHOD AND APPARATUS OF CONTROLLING COMBUSTION IN OXYFUEL COMBUSTION BOILER

#182
20110083594
2011-04-14

Method and apparatus of controlling oxygen supply in oxyfuel combustion boiler

#183
20110081297
2011-04-07

Novel Substituted Pyrazoles, 1,2,4-Oxadiazoles, and 1,3,4-Oxadiazoles

#184
20110070549
2011-03-24

SYSTEM FOR ASH RECYCLING

#185
20110048295
2011-03-03

Method and facility for feeding carbon dioxide to oxyfuel combustion boiler

#186
20110045421
2011-02-24

Method and apparatus of controlling oxygen supply for boiler

#187
20110041740
2011-02-24

RECUPERATIVE COMBUSTION SYSTEM

#188
20100300112
2010-12-02

Method for producing motor energy from fossil fuels while dissipating pure carbon dioxide

#189
20100288173
2010-11-18

Gasification combustion system

#190
20100288172
2010-11-18

Gas leakage reduction system

#191
20100263377
2010-10-21

Power plant that uses a membrane and method for operating the same

#192
20100261126
2010-10-14

Combustion process for the reduction of particulates in combustion fumes

#193
20100252776
2010-10-07

Methods, compositions, and burner systems for reducing emissions of carbon dioxide gas into the atmosphere

#194
20100248168
2010-09-30

Combustion process

#195
20100126137
2010-05-27

Combustion Installation

#196
20100115960
2010-05-13

Gas turbine installation with flue gas recirculation dependent on oxygen content of a gas flow

#197
20100081098
2010-04-01

Combustion system with precombustor for recycled flue gas

#198
20100063342
2010-03-11

Furnace and process for incinerating a decoke effluent in a twin-tube-plane furnace

#199
20100031859
2010-02-11

Combustion Installation

#200
20090308073
2009-12-17

OXYGEN ENHANCED COMBUSTION IN INDUSTRIAL PROCESSES

#201
20090297993
2009-12-03

Method of and System For Generating Power By Oxyfuel Combustion

#202
20090272300
2009-11-05

Method and apparatus for controlling combustion in oxygen fired boiler

#203
20090249988
2009-10-08

Apparatus and Process for Oxycombustion with CO2 Capture

#204
20090246719
2009-10-01

Method of operating a furnace

#205
20090220906
2009-09-03

Method and radiant-heating device for heating an industrial furnace

#206
20090211503
2009-08-27

Air-fired COcapture ready circulating fluidized bed steam generators

#207
20090211500
2009-08-27

Air-fired COcapture ready circulating fluidized bed heat generation with a reactor subsystem

#208
20090158976
2009-06-25

Module-based oxy-fuel boiler

#209
20090120379
2009-05-14

Boiler having an integrated oxygen producing device

#210
20090087802
2009-04-02

Removable light-off port plug for use in burners

#211
20090031933
2009-02-05

DISPOSAL METHOD AND EQUIPMENT FOR EXHAUST GAS FROM COMBUSTION SYSTEM

#212
20080261162
2008-10-23

Burner and method of burning gas in a furnace

#213
20080202397
2008-08-28

Process for reduction of sulfur compounds and nitrogen compounds in the exhaust gases of combustion devices

#214
20080127911
2008-06-05

Method of heating boiler process feed streams

#215
20080076080
2008-03-27

METHOD AND APPARATUS FOR OPTIMIZING HIGH FGR RATE COMBUSTION WITH LASER-BASED DIAGNOSTIC TECHNOLOGY

#216
20080016868
2008-01-24

Integrated capture of fossil fuel gas pollutants including COwith energy recovery

#217
20070281255
2007-12-06

PROCESS AND DEVICE FOR FEEDING OXIDIZING AGENT INTO A COMBUSTION SYSTEM

#218
20070261408
2007-11-15

Gas turbine having exhaust recirculation

#219
20070251435
2007-11-01

Fuel and emissions reduction power plant design using Oxygen for combustion and flue gas recirculation to minimize Carbon Dioxide and NOx emissions

#220
20070243119
2007-10-18

Process for controlling the moisture concentration of a combustion flue gas

#221
20070221196
2007-09-27

Heating device and method for its operations

#222
20070215350
2007-09-20

Carbon dioxide enriched flue gas injection for hydrocarbon recovery

#223
20070207419
2007-09-06

Oxy-fuel combustion with integrated pollution control

#224
20070039527
2007-02-22

Method and plant for the treatment of materials, in particular waste materials and refuse

#225
20070034704
2007-02-15

Oxygen-enriched air assisting system for improving the efficiency of cogeneration system

#226
20070031768
2007-02-08

Method for control of NOx emission from combustors using fuel dilution

#227
20060263731
2006-11-23

Device and method for feeding fuel

#228
20060234174
2006-10-19

Use of recirculated exhaust gas in a burner-based exhaust generation system for reduced fuel consumption and for cooling

#229
20060234172
2006-10-19

Method for combusting fuel in a fired heater

#230
20060207523
2006-09-21

Module-based oxy-fuel boiler

#231
20060057518
2006-03-16

Burner assembly

#232
20060057516
2006-03-16

Method and apparatus for radiant tube combustion

#233
20060029896
2006-02-09

Venturi cluster, and burners and methods employing such cluster

#234
20050257721
2005-11-24

Solid fuel boiler and method of operating combustion apparatus

#235
20050230500
2005-10-20

Method and system for lancing gas into an environment with variable entrainment of non-lanced gas

#236
20050223891
2005-10-13

Oxy-fuel combustion process

#237
20050147934
2005-07-07

Burner with high capacity venturi

#238
20050132942
2005-06-23

Control of cyclone burner

#239
20050076648
2005-04-14

Method and apparatus for injecting a fuel into a combustor assembly

#240
20050022499
2005-02-03

Recuperated gas turbine engine system and method employing catalytic combustion