BRPI0410344A - sistema e métodos para controle aperfeiçoado de emissão de motores de combustão interna usando fluxo de combustìvel pulsado - Google Patents

sistema e métodos para controle aperfeiçoado de emissão de motores de combustão interna usando fluxo de combustìvel pulsado

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Publication number
BRPI0410344A
BRPI0410344A BRPI0410344-0A BRPI0410344A BRPI0410344A BR PI0410344 A BRPI0410344 A BR PI0410344A BR PI0410344 A BRPI0410344 A BR PI0410344A BR PI0410344 A BRPI0410344 A BR PI0410344A
Authority
BR
Brazil
Prior art keywords
methods
nsr catalyst
nsr
emission control
fuel
Prior art date
Application number
BRPI0410344-0A
Other languages
English (en)
Inventor
Ralph A Dalla Betta
Joel Cizeron
Original Assignee
Catalytica Energy Sys 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 Catalytica Energy Sys Inc filed Critical Catalytica Energy Sys Inc
Publication of BRPI0410344A publication Critical patent/BRPI0410344A/pt

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    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • C—CHEMISTRY; METALLURGY
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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/382—Multi-step processes
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Abstract

"SISTEMA E MéTODOS PARA CONTROLE APERFEIçOADO DE EMISSãO DE MOTORES DE COMBUSTãO INTERNA USANDO FLUXO DE COMBUSTìVEL PULSADO". A presente invenção proporciona sistemas e métodos para aperfeiçoar o desempenho e o controle de emissões de motores de combustão interna equipados com sistemas de controle de emissões de armazenamento - redução de óxidos de nitrogênio ('NSR'). O sistema compreende um catalisador de NSR (206), um processador de combustível (200) localizado a montante do catalisador de NSR e pelo menos um orifício injetor de combustível (208). O processador de combustível (200) converte um combustível em uma mistura de gás de redução compreendendo CO e H~ 2~ . A mistura de gás de redução é, então, alimentada no catalisador de NSR (206), onde regenera o adsorvente de NSR, reduz o NO~ x~ em nitrogênio e, opcionalmente, dessulfuriza, periodicamente, o catalisador de NSR. O processador de combustível (200) compreende um ou mais catalisadores (308), que facilita reações, tais como combustão, oxidação parcial e/ou reformação e ajuda a consumir oxigênio em excesso presente em uma corrente de exaustão de motor. Os métodos da presente invenção proporcionam a regeneração de adsorvente de catalisador de NSR, usando fluxo de combustível pulsado. Estratégias de controle também são proporcionadas.
BRPI0410344-0A 2003-05-06 2004-05-05 sistema e métodos para controle aperfeiçoado de emissão de motores de combustão interna usando fluxo de combustìvel pulsado BRPI0410344A (pt)

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US10/431,171 US7082753B2 (en) 2001-12-03 2003-05-06 System and methods for improved emission control of internal combustion engines using pulsed fuel flow
PCT/US2004/014007 WO2004101965A1 (en) 2003-05-06 2004-05-05 System and methods for improved emission control of internal combustion engines using pulsed fuel flow

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US20060230748A1 (en) 2006-10-19
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AU2004239253A1 (en) 2004-11-25
CN1809687A (zh) 2006-07-26
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