ES2526645T3 - Sistema de purificación de gases de escape de motor de combustión interna - Google Patents

Sistema de purificación de gases de escape de motor de combustión interna Download PDF

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Publication number
ES2526645T3
ES2526645T3 ES08721657.8T ES08721657T ES2526645T3 ES 2526645 T3 ES2526645 T3 ES 2526645T3 ES 08721657 T ES08721657 T ES 08721657T ES 2526645 T3 ES2526645 T3 ES 2526645T3
Authority
ES
Spain
Prior art keywords
adsorption
catalyst
selective reduction
reduction catalyst
exhaust gases
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.)
Active
Application number
ES08721657.8T
Other languages
English (en)
Inventor
Shunsuke Toshioka
Tomihisa Oda
Kazuhiro Itoh
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Application granted granted Critical
Publication of ES2526645T3 publication Critical patent/ES2526645T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N3/10—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
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/12—Hydrocarbons
    • 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
    • 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
    • Y02T10/40—Engine management systems

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)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Uso de un dispositivo de purificación de gases de escape de motor de combustión interna en el que se dispone un catalizador de reducción selectiva de tipo de adsorción de urea en un conducto de escape de motor y se alimenta urea a los gases de escape que fluyen al interior del catalizador de reducción selectiva de modo que se reduce el NOx contenido en los gases de escape en el catalizador de reducción selectiva, en el que un catalizador de adsorción de HC para adsorber el HC en los gases de escape se dispone en el conducto de escape de motor aguas arriba del catalizador de reducción selectiva de modo que se suprime la generación de cianuro de hidrógeno, caracterizado porque el dispositivo de purificación de gases de escape se usa en un método en el que se suprime una tasa de desorción de HC de dicho catalizador de adsorción de HC de modo que una concentración de cianuro de hidrógeno en los gases de escape que fluyen saliendo de dicho catalizador de reducción selectiva se vuelve menor que un valor de referencia predeterminado, en el que como cantidad de adsorción de HC que puede adsorber dicho catalizador de adsorción de HC se halla de antemano una cantidad de adsorción de HC permisible cuando la concentración de cianuro de hidrógeno en los gases de escape que fluyen saliendo de dicho catalizador de reducción selectiva se vuelve menor que dicho valor de referencia cuando se hace que se desorba HC del catalizador de adsorción de HC, y se realiza una acción de aumento de temperatura del catalizador de adsorción de HC lo que hace que se desorba HC del catalizador de adsorción de HC cuando la cantidad de adsorción de HC en el catalizador de adsorción de HC es menor que la cantidad de adsorción de HC permisible

Description

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Claims (1)

  1. imagen1
ES08721657.8T 2008-03-04 2008-03-04 Sistema de purificación de gases de escape de motor de combustión interna Active ES2526645T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/054241 WO2009110102A1 (ja) 2008-03-04 2008-03-04 内燃機関の排気浄化装置

Publications (1)

Publication Number Publication Date
ES2526645T3 true ES2526645T3 (es) 2015-01-14

Family

ID=41055680

Family Applications (1)

Application Number Title Priority Date Filing Date
ES08721657.8T Active ES2526645T3 (es) 2008-03-04 2008-03-04 Sistema de purificación de gases de escape de motor de combustión interna

Country Status (6)

Country Link
US (1) US8225596B2 (es)
EP (1) EP2264291B1 (es)
KR (1) KR101122406B1 (es)
CN (1) CN101680331B (es)
ES (1) ES2526645T3 (es)
WO (1) WO2009110102A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014162597A1 (ja) * 2013-04-05 2014-10-09 トヨタ自動車株式会社 内燃機関の排気浄化システム
KR20160057764A (ko) * 2014-11-14 2016-05-24 현대자동차주식회사 배기가스의 흐름을 제어하는 엔진시스템
SE540375C2 (en) * 2016-12-12 2018-08-28 Scania Cv Ab An exhaust treatment system comprising a bypass conduit and a method for controlling the flow of exhaust gases
JP2019190417A (ja) * 2018-04-27 2019-10-31 いすゞ自動車株式会社 排気浄化装置および車両

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334017A (en) * 1976-09-13 1978-03-30 Nissan Motor Co Ltd Control equipment of number of cylinder to be supplied fuel
DE4315278A1 (de) 1993-05-07 1994-11-10 Siemens Ag Verfahren und Einrichtung zur Dosierung eines Reduktionsmittels in ein stickoxidhaltiges Abgas
JPH0711947A (ja) 1993-06-23 1995-01-13 Mazda Motor Corp エンジンの排気ガス浄化装置
JPH11294142A (ja) 1998-04-14 1999-10-26 Toyota Motor Corp ＮＯｘ浄化装置
JP3252793B2 (ja) * 1998-05-15 2002-02-04 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2001303934A (ja) 1998-06-23 2001-10-31 Toyota Motor Corp 内燃機関の排気浄化装置
DE10021693C2 (de) 2000-05-04 2003-08-07 Siemens Ag Verfahren und Vorrichtung zur Abgasreinigung
US6826906B2 (en) 2000-08-15 2004-12-07 Engelhard Corporation Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines
JP3571660B2 (ja) 2001-02-15 2004-09-29 トヨタ自動車株式会社 内燃機関の還元剤供給装置
US6725651B2 (en) 2000-11-16 2004-04-27 Toyota Jidosha Kabushiki Kaisha Reducing agent for emission control system, reducing-agent supply device, and emission control system using the reducing agent
JP3617450B2 (ja) 2000-12-20 2005-02-02 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP3951111B2 (ja) 2002-01-29 2007-08-01 三菱自動車工業株式会社 内燃機関の排気ガス浄化用触媒
JP2004097900A (ja) 2002-09-06 2004-04-02 Babcock Hitachi Kk 炭化水素含有排気ガスの浄化用触媒
KR100662313B1 (ko) 2003-12-01 2006-12-28 도요다 지도샤 가부시끼가이샤 압축 착화식 내연 기관의 배기 정화 장치
JP4678596B2 (ja) 2004-11-29 2011-04-27 株式会社豊田中央研究所 排気浄化装置及び排気浄化システム
JP4635693B2 (ja) 2005-04-14 2011-02-23 トヨタ自動車株式会社 排ガス浄化方法及び排ガス浄化装置
JP4349361B2 (ja) * 2005-12-02 2009-10-21 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP4432917B2 (ja) * 2006-03-06 2010-03-17 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP4140636B2 (ja) * 2006-04-10 2008-08-27 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
JP4710863B2 (ja) * 2007-04-06 2011-06-29 トヨタ自動車株式会社 内燃機関の排気浄化装置

Also Published As

Publication number Publication date
EP2264291A1 (en) 2010-12-22
CN101680331B (zh) 2012-06-27
EP2264291B1 (en) 2014-12-17
US20100031642A1 (en) 2010-02-11
WO2009110102A1 (ja) 2009-09-11
KR20100005079A (ko) 2010-01-13
EP2264291A4 (en) 2011-05-25
US8225596B2 (en) 2012-07-24
KR101122406B1 (ko) 2012-04-12
CN101680331A (zh) 2010-03-24

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