WO2007062019A3 - Combustion method and system - Google Patents

Combustion method and system Download PDF

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Publication number
WO2007062019A3
WO2007062019A3 PCT/US2006/045027 US2006045027W WO2007062019A3 WO 2007062019 A3 WO2007062019 A3 WO 2007062019A3 US 2006045027 W US2006045027 W US 2006045027W WO 2007062019 A3 WO2007062019 A3 WO 2007062019A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion
fuel stream
oxidant
burner
temperature
Prior art date
Application number
PCT/US2006/045027
Other languages
French (fr)
Other versions
WO2007062019A2 (en
Inventor
Zhen Jia
Taofang Zeng
Xiaoguang Jia
Xing Li
Original Assignee
Clean Comb Technologies Llc
Zhen Jia
Taofang Zeng
Xiaoguang Jia
Xing Li
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/283,930 external-priority patent/US7913632B2/en
Priority claimed from PCT/US2006/007025 external-priority patent/WO2006091967A1/en
Priority claimed from TW095112987A external-priority patent/TWI299077B/en
Application filed by Clean Comb Technologies Llc, Zhen Jia, Taofang Zeng, Xiaoguang Jia, Xing Li filed Critical Clean Comb Technologies Llc
Priority to US12/094,149 priority Critical patent/US20080264310A1/en
Publication of WO2007062019A2 publication Critical patent/WO2007062019A2/en
Publication of WO2007062019A3 publication Critical patent/WO2007062019A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/20—Burner staging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/30—Staged fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/50—Control of recirculation rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99004—Combustion process using petroleum coke or any other fuel with a very low content in volatile matters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

A method of combustion for pulverized hydrocarbonaceous fuelincludes the steps of injecting an oxidant/fuel stream into a burner, causing a low-pressure zone; directing a flow of a high-temperature combustion gas from a combustion chamber into the low-pressure zone in the burner; mixing the high-temperature combustion gas with the injected oxidant/fuel stream to heat the injected oxidant/fuel stream, and injecting the heated oxidant/fuel stream from the burner to the combustion chamber, wherein the oxidant/fuel stream is rapidly devolatilized and combusted in a flame that has a high temperature; sensing a combustion parameter; and based on the sensed combustion parameter, controlling combustion to achieve at least one of a desired NOx reduction and a desired distance from the burner to a flame front.
PCT/US2006/045027 2005-11-22 2006-11-20 Combustion method and system WO2007062019A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/094,149 US20080264310A1 (en) 2005-11-22 2006-11-20 Combustion Method and System

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US11/283,930 US7913632B2 (en) 2005-02-25 2005-11-22 Combustion method and system
US11/283,930 2005-11-22
PCT/US2006/007025 WO2006091967A1 (en) 2005-02-25 2006-02-27 Combustion method and system
USPCT/US2006/007025 2006-02-27
TW95112987 2006-04-12
TW095112987A TWI299077B (en) 2005-11-22 2006-04-12 Combustion method and system

Publications (2)

Publication Number Publication Date
WO2007062019A2 WO2007062019A2 (en) 2007-05-31
WO2007062019A3 true WO2007062019A3 (en) 2009-04-30

Family

ID=38067851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/045027 WO2007062019A2 (en) 2005-11-22 2006-11-20 Combustion method and system

Country Status (1)

Country Link
WO (1) WO2007062019A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056674A1 (en) * 2008-11-11 2010-05-12 Siemens Aktiengesellschaft A method and apparatus for monitoring the combustion of a power plant based on a real concentration distribution of a substance
DE102008056675A1 (en) 2008-11-11 2010-05-12 Siemens Aktiengesellschaft Method and apparatus for monitoring combustion of fuel in a power plant
GB0912769D0 (en) * 2009-07-23 2009-08-26 Doosan Babcock Energy Ltd Combustion apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627366A (en) * 1985-09-16 1986-12-09 The Babcock & Wilcox Company Primary air exchange for a pulverized coal burner
US4741279A (en) * 1986-01-08 1988-05-03 Hitachi, Ltd. Method of and apparatus for combusting coal-water mixture
US4798330A (en) * 1986-02-14 1989-01-17 Fuel Systems Textron Inc. Reduced coking of fuel nozzles
US4942832A (en) * 1989-05-04 1990-07-24 Bloom Engineering Company, Inc. Method and device for controlling NOx emissions by vitiation
US5626085A (en) * 1995-12-26 1997-05-06 Combustion Engineering, Inc. Control of staged combustion, low NOx firing systems with single or multiple levels of overfire air
US6715432B2 (en) * 2000-08-04 2004-04-06 Babcock-Hitachi Kabushiki Kaisha Solid fuel burner and method of combustion using solid fuel burner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627366A (en) * 1985-09-16 1986-12-09 The Babcock & Wilcox Company Primary air exchange for a pulverized coal burner
US4741279A (en) * 1986-01-08 1988-05-03 Hitachi, Ltd. Method of and apparatus for combusting coal-water mixture
US4798330A (en) * 1986-02-14 1989-01-17 Fuel Systems Textron Inc. Reduced coking of fuel nozzles
US4942832A (en) * 1989-05-04 1990-07-24 Bloom Engineering Company, Inc. Method and device for controlling NOx emissions by vitiation
US5626085A (en) * 1995-12-26 1997-05-06 Combustion Engineering, Inc. Control of staged combustion, low NOx firing systems with single or multiple levels of overfire air
US6715432B2 (en) * 2000-08-04 2004-04-06 Babcock-Hitachi Kabushiki Kaisha Solid fuel burner and method of combustion using solid fuel burner

Also Published As

Publication number Publication date
WO2007062019A2 (en) 2007-05-31

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