[go: up one dir, main page]

WO2000042302A1 - Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement - Google Patents

Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement Download PDF

Info

Publication number
WO2000042302A1
WO2000042302A1 PCT/EP2000/000047 EP0000047W WO0042302A1 WO 2000042302 A1 WO2000042302 A1 WO 2000042302A1 EP 0000047 W EP0000047 W EP 0000047W WO 0042302 A1 WO0042302 A1 WO 0042302A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
particle filter
honeycomb body
coating
reducing agent
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.)
Ceased
Application number
PCT/EP2000/000047
Other languages
German (de)
English (en)
Inventor
Wolfgang Maus
Rolf BRÜCK
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority to KR1020017008954A priority Critical patent/KR20010101549A/ko
Priority to JP2000593848A priority patent/JP2002535531A/ja
Priority to AU18657/00A priority patent/AU1865700A/en
Priority to EP00900064A priority patent/EP1149230A1/fr
Publication of WO2000042302A1 publication Critical patent/WO2000042302A1/fr
Priority to US09/907,721 priority patent/US20020011069A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • B01D53/9404—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
    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filter
    • 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
    • F01N3/0835—Hydrocarbons
    • 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
    • F01N3/0857—Carbon 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/12—Other methods of operation
    • F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a method and an arrangement for cleaning an exhaust gas stream of a gasoline engine flowing in an exhaust gas line, to which an air / fuel mixture is preferably supplied via direct injection.
  • pollutants essentially hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NO ⁇ ), as well as possibly soot particles.
  • HC hydrocarbons
  • CO carbon monoxide
  • NO ⁇ nitrogen oxides
  • the content of pollutants and soot particles in the exhaust gas mainly depends on the air / fuel ratio supplied. With small air / fuel ratios one speaks of a "rich" mixture composition (air deficit); with large air / fuel ratios one speaks of a "lean” mixture composition (air excess).
  • Soot occurs mainly when burning under extreme air deficiency. Although this condition is not normally achieved in the gasoline engine, it can occur locally due to inhomogeneities, especially during the cold start phase.
  • the soot formation is usually initiated by thermal cracking of the fuel molecules in the absence of oxygen and, with the elimination of hydrogen, leads to the polymerization of carbon-rich macromolecules, which then agglomerate into the final soot particles.
  • the sharp increase in soot when the stoichiometric air ratio is approached follows from the increasing Expansion of the rich mixture zones due to an increase in the injection quantity. Soot formed in rich mixture zones usually hardly burns without further measures.
  • the exhaust gas also contains a relatively large amount of CO and HC, while with air excess CO and HC can be almost completely oxidized up to a certain point.
  • the NO ⁇ content goes through a maximum in the range of slightly lean mixture composition. In this area, however, there is an optimum of the specific fuel consumption for the gasoline engine. So if gasoline engines are set to optimally low consumption, there are high NO ⁇ concentrations in addition to moderate CO and HC concentrations in the exhaust gas. So far, little attention has been paid to the fact that gasoline engines also produce particles, which, however, are usually smaller and have a lower total volume than diesel engines. Nevertheless, such particles can be an environmental burden.
  • the invention is based on the object of specifying measures and devices for improved cleaning of an exhaust gas stream of a gasoline engine flowing in an exhaust line.
  • the method according to the invention for cleaning an exhaust gas stream of a gasoline engine flowing in an exhaust gas line, to which an air / fuel mixture is preferably fed via direct injection is characterized in that the exhaust gas in the exhaust gas line one behind the other has at least one honeycomb body with a catalytically active coating, preferably a three - Path coating, and a particle filter with an at least temporarily storing at least one pollutant component, in particular hydrocarbon (HC), carbon monoxide (CO) and / or nitrogen oxide (NO ⁇ ), through which the coating, whereby an improved cleaning of the exhaust gas can be achieved in an advantageous manner.
  • HC hydrocarbon
  • CO carbon monoxide
  • NO ⁇ nitrogen oxide
  • a reducing agent preferably from a reducing agent reservoir via at least one reducing agent line, for example continuously, is fed to the particle filter.
  • a reducing agent for example ammonia
  • ammonia as a function of a residual NO ⁇ concentration in the exhaust gas behind the honeycomb body almost completely avoids overdosing of the reducing agent, thereby achieving a stoichiometric ratio between the remaining NO ⁇ and reducing agent and advantageously cleaning the exhaust gas containing NO ⁇ Otto engine is improved.
  • Another advantage is that significantly smaller amounts of reducing agents are required than, for example, when reducing agent is injected into an exhaust gas before it flows through a honeycomb body with a catalytically active coating.
  • the reducing agent line preferably ends at the particle filter, the particle filter preferably having an integrated distribution device to which the reducing agent line is connected.
  • an oxidizing agent preferably oxygen (O 2 )
  • O 2 oxygen
  • the coating of the particle filter can at least temporarily store oxygen (O 2 ).
  • Modern gasoline engines usually have electronic engine control or comparable control means.
  • HC hydrocarbon
  • CO carbon monoxide
  • NO ⁇ nitrogen oxide
  • pollutant residues not converted in the honeycomb body can be recognized in an advantageous manner and implemented in the particle filter arranged behind them, which has a correspondingly storing coating, supported by the reducing or oxidizing agents supplied to the filter, the metering of which is controlled, for example, by means of the electronic motor control.
  • the particle filter is preferably regenerated by burning the particles, in particular triggered by engine heat and / or by exothermic reactions in the honeycomb body, preferably at intervals which can be determined, for example, by means of the engine control.
  • the honeycomb body can at the same time form the particle filter at least in partial areas, as a result of which a space-saving design can advantageously be achieved.
  • the single figure schematically shows an arrangement for cleaning an exhaust gas stream of an Otto engine 1 flowing in an exhaust gas line 2, to which an air / fuel mixture is preferably supplied via direct injection.
  • an air / fuel mixture is preferably supplied via direct injection.
  • the flow direction S there is at least one honeycomb body 3 with a catalytically active coating, preferably a three-way catalytic converter, in the exhaust line. and a particle filter 4 with an at least temporarily storing at least one pollutant component, in particular hydrocarbon (HC), carbon monoxide (CO) and or nitrogen oxide (NO ⁇ ).
  • HC hydrocarbon
  • CO carbon monoxide
  • NO ⁇ nitrogen oxide
  • the coating of the particle filter 4 is preferably at least partially designed such that when the gasoline engine 1 is supplied with a rich air / fuel mixture, residual HC and CO which have not been converted in the honeycomb body 3 are stored; and that when the lean engine 1 is supplied with a lean air / fuel mixture, the residual NO ⁇ converted into the honeycomb body 3 is stored.
  • At least one measuring probe 5, 6, 7 is provided, which are arranged between the honeycomb body 3 and the particle filter 4 and, for example, in connection with an electronic motor control, not shown stand, which advantageously includes programs for controlling or regulating the exhaust gas cleaning. In particular, it can be used to determine metered amounts of reducing and / or oxidizing agents to be added.
  • an oxidizing agent or a reducing agent is fed from a reducing agent reservoir 8 via at least one reducing agent line 9 by means of a pump 11 to the particle filter 4 .
  • the particle filter 4 preferably has an integrated distribution device 10, in particular for supplying the reducing agent, which is connected to the reducing agent line 9.
  • Fluid ammonia is preferably used as the reducing agent, which is carried in the reducing agent reservoir 8 and can be supplied as required.
  • the reducing agent can also be carried as a stored precursor, for example urea, in the reducing agent reservoir 8 and, if necessary, in particular pyrolytically, produced and then fed as a fluid to the particle filter 4, in particular via the distribution device 10.
  • a stored precursor for example urea
  • the structure of the particle filter 4 which promotes the deposition of soot particles is preferably a pore structure or a channel structure, wherein in the case of channels these are preferably at least partially offset and / or arranged transversely.
  • the particle filter 4 is arranged at least so closely adjacent behind the honeycomb body 3 that the particles burn, in particular triggered by exothermic reactions in the honeycomb body 3, preferably at determinable intervals.
  • the honeycomb body 3 can also form the particle filter 4 at least in partial areas.
  • honeycomb body 3 and particle filter 4 further components can be provided in the exhaust line 2 of a gasoline engine 1.
  • at least one so-called water trap can be arranged in front of the honeycomb body 3, which keeps the honeycomb body 3 and its catalytic coating as dry as possible in order to be able to bring about the desired oxidation or reduction processes in the honeycomb body 3 even at exhaust gas temperatures of only about 100 ° C. .
  • Water traps therefore contain materials that can collect and store large quantities of water below a certain temperature.
  • an electrically heatable catalyst can also be arranged in the exhaust line 2 in front of the honeycomb body 3 in order to ensure an at least temporarily increased exhaust gas temperature for a catalytic conversion of the pollutants even immediately after the engine has started.
  • the honeycomb body 3 itself can be electrically heated.
  • the present invention is particularly suitable for exhaust systems of gasoline engines.
  • the particle filter 4 advantageously takes on the additional oxidation of residual hydrocarbons (HC) and carbon monoxide (CO) during the cold start phase and, in particular, the supplementary reduction of residual nitrogen oxides (NO ⁇ ) when the gasoline engine 1 is under load. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un procédé et un système permettant de purifier un flux de gaz d'échappement d'un moteur à allumage commandé (1), s'écoulant dans une ligne de gaz d'échappement. Selon l'invention, un mélange air/carburant est acheminé jusqu'au moteur par injection directe. Afin d'améliorer le processus de purification, les gaz d'échappement traversent successivement dans la ligne de gaz d'échappement (2), au moins un corps alvéolaire (3) muni d'un revêtement à action catalytique, de préférence un revêtement trifonctionnel, ainsi qu'un filtre de particules (4) comportant au moins un revêtement retenant au moins par moments au moins un polluant, notamment de l'hydrocarbure (HC), du monoxyde de carbone (CO) et/ou de l'oxyde d'azote (NOx). L'invention s'utilise notamment pour des systèmes de gaz d'échappement de moteurs à allumage commandé (1). Outre le fait de retenir les particules de fumées émises, le filtre de particules (4) assure pendant la phase de démarrage à froid, en particulier l'oxydation complémentaire d'hydrocarbures (HC) résiduels, ainsi que de monoxyde de carbone et lorsque le moteur à allumage commandé est en mode de charge, en particulier la réduction complémentaire des oxydes d'azote (NOx) résiduels.
PCT/EP2000/000047 1999-01-18 2000-01-05 Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement Ceased WO2000042302A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020017008954A KR20010101549A (ko) 1999-01-18 2000-01-05 배기 가스 라인을 관류하는 불꽃 점화 엔진의 배기 가스스트림을 정화하기 위한 방법 및 장치
JP2000593848A JP2002535531A (ja) 1999-01-18 2000-01-05 排ガス系統内を流れる排ガス流の浄化方法及び装置
AU18657/00A AU1865700A (en) 1999-01-18 2000-01-05 Method and arrangement for purifying an exhaust gas stream of a spark ignition engine flowing in an exhaust gas line
EP00900064A EP1149230A1 (fr) 1999-01-18 2000-01-05 Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement
US09/907,721 US20020011069A1 (en) 1999-01-18 2001-07-18 Method and configuration for cleaning an exhaust-gas flow flowing in an exhaust system of a gasoline engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901760.3 1999-01-18
DE19901760A DE19901760A1 (de) 1999-01-18 1999-01-18 Verfahren und Anordnung zum Reinigen eines in einem Abgasstrang strömenden Abgasstromes eines Ottomotors

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/907,721 Continuation US20020011069A1 (en) 1999-01-18 2001-07-18 Method and configuration for cleaning an exhaust-gas flow flowing in an exhaust system of a gasoline engine

Publications (1)

Publication Number Publication Date
WO2000042302A1 true WO2000042302A1 (fr) 2000-07-20

Family

ID=7894605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/000047 Ceased WO2000042302A1 (fr) 1999-01-18 2000-01-05 Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement

Country Status (8)

Country Link
US (1) US20020011069A1 (fr)
EP (1) EP1149230A1 (fr)
JP (1) JP2002535531A (fr)
KR (1) KR20010101549A (fr)
CN (1) CN1336981A (fr)
AU (1) AU1865700A (fr)
DE (1) DE19901760A1 (fr)
WO (1) WO2000042302A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138888A3 (fr) * 2000-03-27 2002-07-17 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
EP1174598A3 (fr) * 2000-07-21 2003-04-23 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
US6568178B2 (en) 2000-03-28 2003-05-27 Toyota Jidosha Kabushiki Kaisha Device for purifying the exhaust gas of an internal combustion engine
US6588204B2 (en) 2000-03-27 2003-07-08 Toyota Jidosha Kabushiki Kaisha Device for purifying the exhaust gas of an internal combustion engine
WO2003083272A1 (fr) * 2002-03-29 2003-10-09 Isuzu Motors Limited Systeme de decontamination de gaz d'echappement et procede de commande associe
US6874315B2 (en) 2000-03-27 2005-04-05 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device
DE102005031816A1 (de) * 2005-07-06 2007-01-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Reduzierung des Partikel- und Stickoxidanteils im Abgasstrom einer Verbrennungskraftmaschine und entsprechende Abgasaufbereitungseinheit
DE10035544B4 (de) * 2000-07-21 2012-01-05 Daimler Ag Filteranordnung für eine Abgasreinigungsanlage
CN104640616A (zh) * 2012-09-21 2015-05-20 克拉里安特国际有限公司 用于净化废气和用于再生氧化催化剂的方法

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60210293T2 (de) * 2001-08-01 2006-10-12 Johnson Matthey Plc Benzinmotor mit abgasanlage zur verbrennung von partikeln
US7140187B2 (en) * 2002-04-15 2006-11-28 Amendola Steven C Urea based composition and system for same
DE10322148B4 (de) * 2003-05-16 2006-11-02 Umicore Ag & Co. Kg Abgasreinigungsanlage mit Partikelfilter und Verfahren zu ihrem Betrieb mit verbesserter Regeneration des Partikelfilters
JP4265497B2 (ja) * 2004-07-05 2009-05-20 トヨタ自動車株式会社 排気浄化装置の制御方法
WO2006080868A1 (fr) * 2005-01-25 2006-08-03 Gas Turbine Efficiency Ab Procede et appareil de nettoyage de sondes
JP4703260B2 (ja) * 2005-05-17 2011-06-15 Ｕｄトラックス株式会社 エンジンの排気浄化装置及びこれに用いられる排気管の構造
US7204082B1 (en) * 2005-12-09 2007-04-17 Delphi Technologies, Inc. System for combustion of reformate in an engine exhaust stream
DE102007024081A1 (de) * 2007-05-22 2008-11-27 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zum Verdampfen eines Fluides
DE102007046158B4 (de) * 2007-09-27 2014-02-13 Umicore Ag & Co. Kg Verwendung eines katalytisch aktiven Partikelfilters zur Entfernung von Partikeln aus dem Abgas von mit überwiegend stöchiometrischem Luft/Kraftstoff-Gemisch betriebenen Verbrennungsmotoren
ATE457813T1 (de) * 2007-09-28 2010-03-15 Umicore Ag & Co Kg Entfernung von partikeln aus dem abgas von mit überwiegend stöchiometrischem luft/kraftstoff- gemisch betriebenen verbrennungsmotoren
JP4645639B2 (ja) * 2007-11-27 2011-03-09 トヨタ自動車株式会社 排気浄化装置
FR2945575A1 (fr) * 2009-05-12 2010-11-19 Peugeot Citroen Automobiles Sa Circuit de traitement et d'evacuation des gaz d'echappement d'un moteur a combustion a allumage commande.
US20130167513A1 (en) * 2011-11-11 2013-07-04 International Engine Intellectual Property Company, Llc Diesel Particulate Fllter Having Three Way Catalyst Coating
US8813478B2 (en) * 2011-12-15 2014-08-26 GM Global Technology Operations LLC Selective catalytic reduction (SCR) system for NOx storage
DE102012011603A1 (de) * 2012-06-12 2013-12-12 Volkswagen Aktiengesellschaft Abgasanlage und Verfahren zum Betreiben einer solchen
GB2512648B (en) * 2013-04-05 2018-06-20 Johnson Matthey Plc Filter substrate comprising three-way catalyst
JP6259729B2 (ja) * 2014-06-30 2018-01-10 ヤンマー株式会社 排気浄化装置
KR101667325B1 (ko) * 2015-08-18 2016-10-18 고등기술연구원연구조합 액상 산화제 공급장치
DE102017107378A1 (de) * 2017-04-06 2018-10-11 Volkswagen Ag Verfahren zum Aufheizen eines Katalysators sowie Kraftfahrzeug mit einem Katalysator
DE102017113366A1 (de) * 2017-06-19 2018-12-20 Volkswagen Aktiengesellschaft Abgasnachbehandlungssystem sowie Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors
WO2020069549A1 (fr) * 2018-10-05 2020-04-09 Avl List Gmbh Système de moteur à allumage commandé et procédé à système nsc
US12377711B2 (en) 2020-08-20 2025-08-05 Denso International America, Inc. Vehicle feature control systems and methods based on smoking
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
US12269315B2 (en) 2020-08-20 2025-04-08 Denso International America, Inc. Systems and methods for measuring and managing odor brought into rental vehicles
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
US12251991B2 (en) 2020-08-20 2025-03-18 Denso International America, Inc. Humidity control for olfaction sensors
US12017506B2 (en) 2020-08-20 2024-06-25 Denso International America, Inc. Passenger cabin air control systems and methods
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645098A (en) * 1970-09-28 1972-02-29 Gen Motors Corp Exhaust emission control
EP0627548A1 (fr) * 1993-05-31 1994-12-07 Toyota Jidosha Kabushiki Kaisha Dispositif de purification de gaz d'échappement d'un moteur
DE4339424A1 (de) * 1993-11-18 1995-06-14 Emitec Emissionstechnologie Beheizbarer Katalysator mit Kohlenwasserstoff-Falle für Abgassysteme
US5519993A (en) * 1994-02-14 1996-05-28 Ford Motor Company Spark ignition engine exhaust system
EP0820810A1 (fr) * 1993-12-28 1998-01-28 Ngk Insulators, Ltd. Purification de gaz d'échappement
EP0824182A1 (fr) * 1996-08-15 1998-02-18 Toyota Jidosha Kabushiki Kaisha Méthode et dispositif pour purifier les gaz d'échappement d'un moteur à combustion interne
EP0849441A1 (fr) * 1996-12-20 1998-06-24 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Stratégie de commande pour accumulateur de NOx

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012719A1 (de) * 1990-04-21 1991-10-24 Roggenkamp Karl Heinz Verfahren zur beseitigung von schaedlichen bestandteilen aus abgasen von brennkraftmaschinen, insbesondere von dieselmotoren und vorrichtung zur durchfuehrung des verfahrens
JPH0441914A (ja) * 1990-06-01 1992-02-12 Nissan Motor Co Ltd 内燃機関の排気処理装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645098A (en) * 1970-09-28 1972-02-29 Gen Motors Corp Exhaust emission control
EP0627548A1 (fr) * 1993-05-31 1994-12-07 Toyota Jidosha Kabushiki Kaisha Dispositif de purification de gaz d'échappement d'un moteur
DE4339424A1 (de) * 1993-11-18 1995-06-14 Emitec Emissionstechnologie Beheizbarer Katalysator mit Kohlenwasserstoff-Falle für Abgassysteme
EP0820810A1 (fr) * 1993-12-28 1998-01-28 Ngk Insulators, Ltd. Purification de gaz d'échappement
US5519993A (en) * 1994-02-14 1996-05-28 Ford Motor Company Spark ignition engine exhaust system
EP0824182A1 (fr) * 1996-08-15 1998-02-18 Toyota Jidosha Kabushiki Kaisha Méthode et dispositif pour purifier les gaz d'échappement d'un moteur à combustion interne
EP0849441A1 (fr) * 1996-12-20 1998-06-24 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Stratégie de commande pour accumulateur de NOx

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138888A3 (fr) * 2000-03-27 2002-07-17 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
US6588204B2 (en) 2000-03-27 2003-07-08 Toyota Jidosha Kabushiki Kaisha Device for purifying the exhaust gas of an internal combustion engine
US6874315B2 (en) 2000-03-27 2005-04-05 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device
US6568178B2 (en) 2000-03-28 2003-05-27 Toyota Jidosha Kabushiki Kaisha Device for purifying the exhaust gas of an internal combustion engine
EP1174598A3 (fr) * 2000-07-21 2003-04-23 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
US7296401B2 (en) 2000-07-21 2007-11-20 Toyota Jidosha Kabushiki Kaisha Device for purifying the exhaust gas of an internal combustion engine
DE10035544B4 (de) * 2000-07-21 2012-01-05 Daimler Ag Filteranordnung für eine Abgasreinigungsanlage
WO2003083272A1 (fr) * 2002-03-29 2003-10-09 Isuzu Motors Limited Systeme de decontamination de gaz d'echappement et procede de commande associe
DE102005031816A1 (de) * 2005-07-06 2007-01-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Reduzierung des Partikel- und Stickoxidanteils im Abgasstrom einer Verbrennungskraftmaschine und entsprechende Abgasaufbereitungseinheit
US7563422B2 (en) 2005-07-06 2009-07-21 Emitec Gesellschaft Fuer Emissiontechnologie Mbh Method for reducing a particle and nitrogen oxide proportion in an exhaust gas flow of an internal combustion engine and corresponding exhaust gas treatment unit
CN104640616A (zh) * 2012-09-21 2015-05-20 克拉里安特国际有限公司 用于净化废气和用于再生氧化催化剂的方法

Also Published As

Publication number Publication date
KR20010101549A (ko) 2001-11-14
DE19901760A1 (de) 2000-07-27
AU1865700A (en) 2000-08-01
JP2002535531A (ja) 2002-10-22
US20020011069A1 (en) 2002-01-31
CN1336981A (zh) 2002-02-20
EP1149230A1 (fr) 2001-10-31

Similar Documents

Publication Publication Date Title
WO2000042302A1 (fr) Procede et systeme pour purifier le flux de gaz d'echappement d'un moteur a allumage commande, s'ecoulant dans une ligne de gaz d'echappement
EP1600612B1 (fr) Procédé pour la séparation d'oxydes d'azote et de particules de suie d'un gaz d'échappement pauvre de moteur à combustion et système de purification de gaz d'échappement pour cela
DE19731623B4 (de) Verfahren und Vorrichtung zur De-Sulfatierung von NOx-Speichern bei Dieselmotoren
DE102004040533B4 (de) Nachbehandlung von Abgasemissionen
EP2138681B1 (fr) Procédé et dispositif de nettoyage de gaz d'échappement diesel
EP3921520B1 (fr) Système de post-traitement de gaz d'échappement et procédé pour le post-traitement de gaz d'échappement d'un moteur à combustion interne
EP3683414B1 (fr) Installation de gaz d'échappement pour un moteur à combustion interne et son procédé de fonctionnement
WO1999022128A1 (fr) Procede de traitement ulterieur des gaz d'echappement de machines a combustion interne a piston et a injection directe de carburant
DE10308288A1 (de) Verfahren zur Entfernung von Stickoxiden aus dem Abgas eines mager betriebenen Verbrennungsmotors und Abgasreinigungsanlage hierzu
EP2115277A1 (fr) Procédé de régénération de filtres à particules dans le système d'échappement d'un moteur pour mélange pauvre et système d'échappement associé
WO2000064566A1 (fr) Installation pour nettoyer les gaz d'echappement issus d'un moteur a combustion interne et procede pour faire fonctionner une telle installation
DE102011007364A1 (de) Verfahren und Vorrichtung zur Regeneration eines Partikelfilters bei einem Y-Abgassystem
DE102010037019A1 (de) Abgasreinigungssystem für einen Verbrennungsmotor und Entschwefelungsverfahren für dasselbe
DE102019121428A1 (de) Verfahren zum Aufheizen eines Katalysators und Abgasnachbehandlungssystem
DE102016202351A1 (de) Verfahren zum Betreiben einer Verbrennungskraftmaschine und Dreizylindermotor zum Ausführen eines solchen Verfahrens
EP1101908B1 (fr) Dispositif et méthode servant à limiter la quantité de composants nocifs presents dans les gaz d'échappement d'un moteur à combustion interne, en particulier d'un moteur à combustion interne Diesel
EP0783918B1 (fr) Procédé pour la réduction des oxydes d'azote dans les gaz d'échappement de moteurs diesel
DE102017201401B4 (de) Abgasnachbehandlung
DE102007039588A1 (de) Vorrichtung und Verfahren zur Reinigung von Abgasen für eine Brennkraftmaschine
DE102015215365A1 (de) Verfahren zur Regeneration von Abgasnachbehandlungskomponenten eines Verbrennungsmotors sowie Abgasnachbehandlungsvorrichtung für einen Verbrennungsmotor
WO2007098848A1 (fr) Module et procede de diminution des oxydes d'azote dans l'installation de gaz d'echappement d'un moteur a combustion interne
DE102016210897B4 (de) Steuerung einer Stickoxidemission in Betriebsphasen hoher Last
EP1052382B1 (fr) Purification de gaz d'échappement comprenant un catalyseur de stockage de NOx et un pré-catalyseur
EP1102920A1 (fr) Procede et dispositif de desulfatation d'un systeme catalyseur
DE102008037156A1 (de) Verfahren und eine Vorrichtung zur Reinigung eines Abgasstroms einer magerlauffähigen Brennkraftmaschine

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00802895.8

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref document number: 2000 593848

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020017008954

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 09907721

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: IN/PCT/2001/796/KOL

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2000900064

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000900064

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020017008954

Country of ref document: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 2000900064

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1020017008954

Country of ref document: KR