BR0303413A - Método para dessulfatar um catalisador de armazenamento de óxido de nitrogênio - Google Patents

Método para dessulfatar um catalisador de armazenamento de óxido de nitrogênio

Info

Publication number
BR0303413A
BR0303413A BR0303413-5A BR0303413A BR0303413A BR 0303413 A BR0303413 A BR 0303413A BR 0303413 A BR0303413 A BR 0303413A BR 0303413 A BR0303413 A BR 0303413A
Authority
BR
Brazil
Prior art keywords
oxide storage
nitrogen oxide
storage catalyst
desulfating
catalyst
Prior art date
Application number
BR0303413-5A
Other languages
English (en)
Other versions
BR0303413B1 (pt
Inventor
Michael Hoffmann
Harald Klein
Klaus-Ingo Prieger
Thomas Kreuzer
Original Assignee
Omg Ag & Co Kg
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 Omg Ag & Co Kg filed Critical Omg Ag & Co Kg
Publication of BR0303413A publication Critical patent/BR0303413A/pt
Publication of BR0303413B1 publication Critical patent/BR0303413B1/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
    • B01D53/949—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start for storing sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B01D53/9495—Controlling the catalytic process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0864—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F02D41/028—Desulfurisation of NOx traps or adsorbent

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Emergency Medicine (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Catalysts (AREA)

Abstract

"MéTODO PARA DESSULFATAR UM CATALISADOR DE ARMAZENAMENTO DE óXIDO DE NITROGêNIO". A invenção refere-se a um método para dessulfatar um catalisador de armazenamento de óxido de nitrogênio que contém óxidos de nitrogênio e óxidos de enxofre armazenados e que faz parte de um sistema de purificação do gás de exaustão de um motor de queima pobre. O método provê que, para iniciar a dessulfatação, a temperatura do catalisador é aumentada até o ponto onde a dessorção térmica dos óxidos de nitrogênio armazenados no catalisador começa e o início da dessorção térmica dos óxidos de nitrogênio é usado como o sinal para enriquecer a mistura ar/combustível para realizar a dessulfatação.
BRPI0303413-5A 2002-08-23 2003-08-21 método para dessulfatar um catalisador de armazenamento de óxido de nitrogênio. BR0303413B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10238771A DE10238771B4 (de) 2002-08-23 2002-08-23 Verfahren zur Desulfatisierung eines Stickoxid-Speicherkatalysators

Publications (2)

Publication Number Publication Date
BR0303413A true BR0303413A (pt) 2004-09-08
BR0303413B1 BR0303413B1 (pt) 2012-11-27

Family

ID=30775540

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0303413-5A BR0303413B1 (pt) 2002-08-23 2003-08-21 método para dessulfatar um catalisador de armazenamento de óxido de nitrogênio.

Country Status (7)

Country Link
US (1) US6973775B2 (pt)
EP (1) EP1391600B1 (pt)
JP (1) JP4171681B2 (pt)
KR (1) KR100959839B1 (pt)
BR (1) BR0303413B1 (pt)
CA (1) CA2437069C (pt)
DE (2) DE10238771B4 (pt)

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JP3876874B2 (ja) * 2003-10-28 2007-02-07 トヨタ自動車株式会社 触媒再生方法
FR2862708B1 (fr) * 2003-11-24 2008-01-18 Inst Francais Du Petrole Procede et dispositif de desulfatation d'un piege a oxydes nitriques et de regeneration d'un filtre a particules
JP4349119B2 (ja) * 2003-12-19 2009-10-21 いすゞ自動車株式会社 排気ガス浄化方法及び排気ガス浄化システム
US7213395B2 (en) * 2004-07-14 2007-05-08 Eaton Corporation Hybrid catalyst system for exhaust emissions reduction
US7197867B2 (en) * 2004-10-04 2007-04-03 Southwest Research Institute Method for the simultaneous desulfation of a lean NOx trap and regeneration of a Diesel particulate filter
JP4572709B2 (ja) * 2005-03-18 2010-11-04 トヨタ自動車株式会社 内燃機関の排気浄化システム
US20070056268A1 (en) * 2005-09-10 2007-03-15 Eaton Corporation LNT-SCR packaging
US7063642B1 (en) * 2005-10-07 2006-06-20 Eaton Corporation Narrow speed range diesel-powered engine system w/ aftertreatment devices
US7849678B2 (en) * 2005-12-02 2010-12-14 Eaton Corporation Desulfation control strategy
DE102006025050B4 (de) * 2006-05-27 2014-04-03 Fev Gmbh Verfahren und Vorrichtung zum Betrieb einer Abgasnachbehandlungsanlage
US20080022660A1 (en) * 2006-07-21 2008-01-31 Eaton Corporation Method for controlled DPF regeneration
US20080016850A1 (en) * 2006-07-21 2008-01-24 Eaton Corporation Simultaneous LNT and DPF regeneration
US20080016851A1 (en) * 2006-07-21 2008-01-24 Eaton Corporation System to reduce engine exhaust oxygen using exhaust hydrocarbons and a catalyst positioned upstream of a fuel reformer-LNT system
US7610751B2 (en) * 2006-07-21 2009-11-03 Eaton Corporation Fuel injection before turbocharger
US8209960B2 (en) * 2006-07-21 2012-07-03 International Engine Intellectual Property Company, Llc System and method for coupled DPF regeneration and LNT DeNOx
DE602007004039D1 (de) * 2006-08-01 2010-02-11 Honda Motor Co Ltd Schwefelreinigungssteuerungsvorrichtung für einen Verbrennungsmotor
US20080072575A1 (en) * 2006-09-21 2008-03-27 Eaton Corporation Catalyst to improve low temperature deNOx activity in a reformer-LNT exhaust aftertreatment system
US8459010B2 (en) * 2010-02-26 2013-06-11 General Electric Company System and method for controlling nitrous oxide emissions of an internal combustion engine and regeneration of an exhaust treatment device
GB2502832A (en) * 2012-06-06 2013-12-11 Gm Global Tech Operations Inc Controlling a Desuiphation Process of a Lean NOx trap
US9080524B2 (en) 2013-02-25 2015-07-14 Cummins, Inc. System, method, and apparatus for sulfur recovery on an SCR catalyst
DE102014014636A1 (de) 2014-10-01 2016-04-07 Man Diesel & Turbo Se Verfahren und Steuerungseinrichtung zum Betreiben eines Systems aus mehreren Brennkraftmaschinen
FR3065486B1 (fr) * 2017-04-20 2021-05-21 Peugeot Citroen Automobiles Sa Procede de desulfatation d’un piege a nox d’une ligne d’echappement d’un moteur thermique

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EP0560991B9 (en) 1991-10-03 2005-01-26 Toyota Jidosha Kabushiki Kaisha Device for purifying exhaust of internal combustion engine
DE19636790A1 (de) 1996-09-11 1998-03-12 Volkswagen Ag NOx-Abgasreinigungsverfahren
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Also Published As

Publication number Publication date
KR100959839B1 (ko) 2010-05-28
US20040112042A1 (en) 2004-06-17
KR20040018228A (ko) 2004-03-02
CA2437069C (en) 2011-04-26
CA2437069A1 (en) 2004-02-23
EP1391600B1 (de) 2006-12-06
EP1391600A1 (de) 2004-02-25
JP2004084665A (ja) 2004-03-18
DE50305883D1 (de) 2007-01-18
DE10238771A1 (de) 2004-03-04
US6973775B2 (en) 2005-12-13
DE10238771B4 (de) 2009-01-22
BR0303413B1 (pt) 2012-11-27
JP4171681B2 (ja) 2008-10-22

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2595 DE 29-09-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.