CA2487146A1 - Fuel staging process for low nox operations - Google Patents

Fuel staging process for low nox operations Download PDF

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Publication number
CA2487146A1
CA2487146A1 CA002487146A CA2487146A CA2487146A1 CA 2487146 A1 CA2487146 A1 CA 2487146A1 CA 002487146 A CA002487146 A CA 002487146A CA 2487146 A CA2487146 A CA 2487146A CA 2487146 A1 CA2487146 A1 CA 2487146A1
Authority
CA
Canada
Prior art keywords
fuel
outtake
outlet
conduit
stream
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002487146A
Other languages
French (fr)
Other versions
CA2487146C (en
Inventor
Mahendra Ladharam Joshi
Xianming Jimmy Li
Aleksandar Georgi Slavejkov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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
Application filed by Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of CA2487146A1 publication Critical patent/CA2487146A1/en
Application granted granted Critical
Publication of CA2487146C publication Critical patent/CA2487146C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the 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
    • F23C2202/20—Premixing fluegas with fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05004—Mixing two or more fluid fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07002—Injecting inert gas, other than steam or evaporated water, into the combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07009—Injection of steam into the combustion chamber

Abstract

A method for diluting a fuel to reduce NOx uses a fuel dilution device, whic h includes: a first conduit having an inlet and an outlet, the first conduit adapted to transmit a stream of a fuel entering the inlet and exiting the outlet at a first thermodynamic state and a first fuel index; and a second conduit having an intake and an outtake, the second conduit adapted to transmit a stream of a fluid entering the intake and exiting the outtake at a second/different thermodynamic state and a second fuel index different from the first fuel index by at least about 0.1, whereby a potential for mixing exists between the two streams exiting the outlet and the outtake, and at least some of the fuel mixes with at least some of t he fluid near the outlet and the outtake, thereby generating a diluted fuel stream having an intermediate fuel index.
CA002487146A 2003-11-14 2004-11-08 Fuel staging process for low nox operations Active CA2487146C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71323203A 2003-11-14 2003-11-14
US10/713,232 2003-11-14

Publications (2)

Publication Number Publication Date
CA2487146A1 true CA2487146A1 (en) 2005-05-14
CA2487146C CA2487146C (en) 2009-01-20

Family

ID=34435678

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002487146A Active CA2487146C (en) 2003-11-14 2004-11-08 Fuel staging process for low nox operations

Country Status (9)

Country Link
EP (1) EP1531303B1 (en)
JP (1) JP4299225B2 (en)
KR (1) KR100738863B1 (en)
CN (1) CN100356104C (en)
AT (1) ATE503152T1 (en)
CA (1) CA2487146C (en)
DE (1) DE602004031916D1 (en)
ES (1) ES2360589T3 (en)
SG (1) SG112091A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113280354A (en) * 2021-05-19 2021-08-20 光大环境科技（中国）有限公司 Process method for introducing high-temperature tail gas into furnace through gas merging coupling in activated carbon preparation process

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037620C5 (en) * 2004-08-02 2015-09-17 Air Liquide Deutschland Gmbh Fuel-oxygen burner with variable flame length
WO2007048429A1 (en) * 2005-10-28 2007-05-03 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Oxygen/fuel burner with variable flame length
US20100089020A1 (en) * 2008-10-14 2010-04-15 General Electric Company Metering of diluent flow in combustor
MX347479B (en) * 2011-12-01 2017-04-27 Air Prod & Chem Rapid energy release burners and methods for using the same.
JP2016003847A (en) * 2014-06-19 2016-01-12 Ｊｆｅケミカル株式会社 Two-stage combustion method
CN105699413B (en) * 2016-02-25 2018-06-29 上海交通大学 Work in the simulation system for thermodynamics exhaust system research of room temperature warm area

Family Cites Families (22)

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Publication number Priority date Publication date Assignee Title
US4995807A (en) * 1989-03-20 1991-02-26 Bryan Steam Corporation Flue gas recirculation system
US4946382A (en) * 1989-05-23 1990-08-07 Union Carbide Corporation Method for combusting fuel containing bound nitrogen
US4988285A (en) * 1989-08-15 1991-01-29 Union Carbide Corporation Reduced Nox combustion method
JP2638394B2 (en) * 1992-06-05 1997-08-06 日本ファーネス工業株式会社 Low NOx combustion method
JPH07180816A (en) * 1993-12-22 1995-07-18 Osaka Gas Co Ltd Premixing burner
US5601425A (en) * 1994-06-13 1997-02-11 Praxair Technology, Inc. Staged combustion for reducing nitrogen oxides
US5516279A (en) * 1994-07-06 1996-05-14 The Boc Group, Inc. Oxy-fuel burner system designed for alternate fuel usage
US5611682A (en) * 1995-09-05 1997-03-18 Air Products And Chemicals, Inc. Low-NOx staged combustion device for controlled radiative heating in high temperature furnaces
US5743723A (en) * 1995-09-15 1998-04-28 American Air Liquide, Inc. Oxy-fuel burner having coaxial fuel and oxidant outlets
US5762486A (en) * 1996-02-21 1998-06-09 Praxair Technology, Inc. Toroidal vortex combustion for low heating value liquid
US6238206B1 (en) * 1997-05-13 2001-05-29 Maxon Corporation Low-emissions industrial burner
FR2788110B1 (en) * 1998-12-30 2001-02-16 Air Liquide COMBUSTION PROCESS AND ITS USES FOR THE PREPARATION OF GLASS AND METAL
US6085674A (en) * 1999-02-03 2000-07-11 Clearstack Combustion Corp. Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidation
US6126438A (en) * 1999-06-23 2000-10-03 American Air Liquide Preheated fuel and oxidant combustion burner
US6383462B1 (en) * 1999-10-26 2002-05-07 John Zink Company, Llc Fuel dilution methods and apparatus for NOx reduction
JP2002228122A (en) 2001-02-05 2002-08-14 Matsushita Electric Ind Co Ltd Combustion device
JP3951920B2 (en) * 2001-02-09 2007-08-01 ソニー株式会社 Input device
JP2003074804A (en) 2001-09-05 2003-03-12 Mitsubishi Electric Corp Combustion device
US6773256B2 (en) * 2002-02-05 2004-08-10 Air Products And Chemicals, Inc. Ultra low NOx burner for process heating
US6752620B2 (en) * 2002-01-31 2004-06-22 Air Products And Chemicals, Inc. Large scale vortex devices for improved burner operation
CN2550652Y (en) * 2002-04-30 2003-05-14 刘超杰 High efficiency environment protection burner
US6866503B2 (en) * 2003-01-29 2005-03-15 Air Products And Chemicals, Inc. Slotted injection nozzle and low NOx burner assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113280354A (en) * 2021-05-19 2021-08-20 光大环境科技（中国）有限公司 Process method for introducing high-temperature tail gas into furnace through gas merging coupling in activated carbon preparation process
CN113280354B (en) * 2021-05-19 2023-07-04 光大环境科技（中国）有限公司 Process method for coupling high-temperature tail gas and gas into furnace in active carbon preparation process

Also Published As

Publication number Publication date
CA2487146C (en) 2009-01-20
EP1531303A1 (en) 2005-05-18
CN100356104C (en) 2007-12-19
ES2360589T3 (en) 2011-06-07
JP2005147656A (en) 2005-06-09
KR100738863B1 (en) 2007-07-16
DE602004031916D1 (en) 2011-05-05
CN1616884A (en) 2005-05-18
EP1531303B1 (en) 2011-03-23
ATE503152T1 (en) 2011-04-15
KR20050046606A (en) 2005-05-18
SG112091A1 (en) 2005-06-29
JP4299225B2 (en) 2009-07-22

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