BR9911534A - Queima com queimador por oxidação de combustìvel-oxigênio para redução de emissões de nox de fornos de alta temperatura - Google Patents

Queima com queimador por oxidação de combustìvel-oxigênio para redução de emissões de nox de fornos de alta temperatura

Info

Publication number
BR9911534A
BR9911534A BR9911534-4A BR9911534A BR9911534A BR 9911534 A BR9911534 A BR 9911534A BR 9911534 A BR9911534 A BR 9911534A BR 9911534 A BR9911534 A BR 9911534A
Authority
BR
Brazil
Prior art keywords
fuel
flame
oxygen
burner
air
Prior art date
Application number
BR9911534-4A
Other languages
English (en)
Inventor
Mahendra L Joshi
Benjamin J Jurcik Jr
Jean-Francois Simon
Original Assignee
Air Liquide
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 Liquide filed Critical Air Liquide
Publication of BR9911534A publication Critical patent/BR9911534A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F23M5/025—Casings; Linings; Walls characterised by the shape of the bricks or blocks used specially adapted for burner openings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

Patente de Invenção: <B>"QUEIMA COM QUEIMADOR POR OXIDAçãO DE COMBUSTìVEL-OXIGêNIO PARA REDUçãO DE EMISSõES DE NOx DE FORNOS DE ALTA TEMPERATURA"<D>. São apresentados processo e dispositivo de queima de queimador, em que um queimador oxigênio-combustível oxidante é queimado a um ângulo para a redução da chama de queimador ar-combustível, para reduzir as emissões globais de NOx de fornos de alta temperatura. A razão de equivalência estequiométrica do queimador oxigênio-combustível oxidante (oxigênio/combustível) é mantida na faixa de cerca de 1,5 a cerca de 12,5. O queimador ar-combustível redutor é queimado a uma razão de equivalência de 0,6 a 1,00, para reduzir a disponibilidade de oxigênio na chama e reduzir as emissões de NOx. A chama oxidante do queimador oxigênio-combustível é orientada, de modo que a corrente gasosa da chama oxidante intercepta a corrente gasosa da chama ar-combustível de redução na ou próxima à seção de cauda da chama ar-combustível. Os processos inventivos aperfeiçoam o controle da temperatura do forno e a eficiência térmica por eliminação de parte do nitrogênio e proporcionam uma queima efetiva de CO e de outros hidrocarbonetos, usando a mais alta capacidade de mistura dos produtos de combustão da chama oxidante. A queima simultânea dos queimadores ar-combustível e oxigênio-combustível pode reduzir as emissões de NOx a algo de 30% a 70%, dependendo da razão estequiométrica da chama ar-combustível.
BR9911534-4A 1998-02-26 1999-02-24 Queima com queimador por oxidação de combustìvel-oxigênio para redução de emissões de nox de fornos de alta temperatura BR9911534A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/031,977 US5954498A (en) 1998-02-26 1998-02-26 Oxidizing oxygen-fuel burner firing for reducing NOx emissions from high temperature furnaces

Publications (1)

Publication Number Publication Date
BR9911534A true BR9911534A (pt) 2001-03-13

Family

ID=21862449

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911534-4A BR9911534A (pt) 1998-02-26 1999-02-24 Queima com queimador por oxidação de combustìvel-oxigênio para redução de emissões de nox de fornos de alta temperatura

Country Status (7)

Country Link
US (2) US5954498A (pt)
EP (1) EP0939059B1 (pt)
JP (2) JP4267121B2 (pt)
BR (1) BR9911534A (pt)
CA (1) CA2261454C (pt)
DE (1) DE69939231D1 (pt)
ES (1) ES2312201T3 (pt)

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Also Published As

Publication number Publication date
JP4267121B2 (ja) 2009-05-27
EP0939059B1 (en) 2008-08-06
JPH11311403A (ja) 1999-11-09
JP2008157622A (ja) 2008-07-10
US6171100B1 (en) 2001-01-09
CA2261454C (en) 2008-10-07
US5954498A (en) 1999-09-21
CA2261454A1 (en) 1999-08-26
DE69939231D1 (de) 2008-09-18
EP0939059A2 (en) 1999-09-01
ES2312201T3 (es) 2009-02-16
EP0939059A3 (en) 2000-04-19

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