WO2008081735A1 - 内燃機関の排気ガス浄化装置 - Google Patents

内燃機関の排気ガス浄化装置 Download PDF

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Publication number
WO2008081735A1
WO2008081735A1 PCT/JP2007/074533 JP2007074533W WO2008081735A1 WO 2008081735 A1 WO2008081735 A1 WO 2008081735A1 JP 2007074533 W JP2007074533 W JP 2007074533W WO 2008081735 A1 WO2008081735 A1 WO 2008081735A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
internal combustion
gas purifying
combustion engine
purifying apparatus
Prior art date
Application number
PCT/JP2007/074533
Other languages
English (en)
French (fr)
Inventor
Hirohito Hirata
Masaya Ibe
Mayuko Osaki
Masaya Kamada
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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 Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to DE112007003166T priority Critical patent/DE112007003166T5/de
Priority to US12/520,555 priority patent/US20100043406A1/en
Publication of WO2008081735A1 publication Critical patent/WO2008081735A1/ja

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
    • F01N3/0807—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
    • 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
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • B01D2255/9022—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/91—NOx-storage component incorporated in the catalyst
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/38—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　この発明は、触媒の排気ガス浄化機能を妨げることなくＮＯｘ吸蔵還元を行うことができる内燃機関の排気ガス浄化装置を提供することを目的とする。 　内燃機関の排気通路に、ＮＯｘ吸蔵還元型触媒とオゾン供給装置とを配置する。ＮＯｘ吸蔵還元型触媒は排気ガスが流通するセルを備えている。セルの内面には、ＮＯｘ保持層と、触媒層とが、セルの内面側からＮＯｘ保持層、触媒層の順に位置するようにコーティングされている。
PCT/JP2007/074533 2006-12-28 2007-12-20 内燃機関の排気ガス浄化装置 WO2008081735A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112007003166T DE112007003166T5 (de) 2006-12-28 2007-12-20 Auslassemissionssteuerapparat für Verbrennungsmotor
US12/520,555 US20100043406A1 (en) 2006-12-28 2007-12-20 Exhaust emission control apparatus for internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-355587 2006-12-28
JP2006355587A JP2008163871A (ja) 2006-12-28 2006-12-28 内燃機関の排気ガス浄化装置

Publications (1)

Publication Number Publication Date
WO2008081735A1 true WO2008081735A1 (ja) 2008-07-10

Family

ID=39588419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074533 WO2008081735A1 (ja) 2006-12-28 2007-12-20 内燃機関の排気ガス浄化装置

Country Status (5)

Country Link
US (1) US20100043406A1 (ja)
JP (1) JP2008163871A (ja)
CN (1) CN101573514A (ja)
DE (1) DE112007003166T5 (ja)
WO (1) WO2008081735A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2273081A1 (en) * 2009-06-05 2011-01-12 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus for internal combustion engine, and method of controlling the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101094672B1 (ko) * 2009-03-17 2011-12-20 한국과학기술연구원 오존과 촉매 하이브리드 시스템을 이용한 질소산화물의 처리방법 및 처리장치
US20110120105A1 (en) * 2009-11-24 2011-05-26 Wen-Lo Chen Engine waste gas treatment method and apparatus
CN105927343B (zh) * 2016-06-07 2018-12-21 灵武市伟畅机械科技有限公司 一种内燃机排气装置
WO2020083171A1 (zh) * 2018-10-22 2020-04-30 上海必修福企业管理有限公司 一种发动机尾气臭氧净化系统和方法
US11573155B2 (en) * 2019-12-05 2023-02-07 Southwest Research Institute Generation of nitrogen dioxide for use with burner-based exhaust replication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616818B2 (ja) * 1990-03-23 1994-03-09 川崎重工業株式会社 排ガス浄化方法及び装置
JP2002089246A (ja) * 2000-09-20 2002-03-27 Hitachi Ltd 内燃機関の排ガス浄化方法および排ガス浄化装置
JP2005344518A (ja) * 2004-05-31 2005-12-15 Mitsubishi Motors Corp 内燃機関の排気浄化システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05192535A (ja) 1992-01-22 1993-08-03 Kawasaki Heavy Ind Ltd 排ガスの浄化方法及び装置
JP3311051B2 (ja) 1992-12-16 2002-08-05 日本碍子株式会社 排気ガス浄化方法及び装置
JPH10169434A (ja) 1996-12-09 1998-06-23 Ngk Insulators Ltd 排ガス浄化方法及びそれに用いる排ガス浄化システム
JP3551346B2 (ja) 1996-12-19 2004-08-04 トヨタ自動車株式会社 排ガス浄化装置
JP3741303B2 (ja) * 1997-12-08 2006-02-01 トヨタ自動車株式会社 排ガス浄化用触媒
US6162409A (en) * 1999-03-15 2000-12-19 Arthur P. Skelley Process for removing Nox and Sox from exhaust gas
US6761863B2 (en) * 2002-01-29 2004-07-13 The Boc Group, Inc. Process for the removal of impurities from gas streams
IL166717A0 (en) 2002-08-26 2006-01-15 Computer Ass Think Inc Web services apparatus and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616818B2 (ja) * 1990-03-23 1994-03-09 川崎重工業株式会社 排ガス浄化方法及び装置
JP2002089246A (ja) * 2000-09-20 2002-03-27 Hitachi Ltd 内燃機関の排ガス浄化方法および排ガス浄化装置
JP2005344518A (ja) * 2004-05-31 2005-12-15 Mitsubishi Motors Corp 内燃機関の排気浄化システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2273081A1 (en) * 2009-06-05 2011-01-12 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus for internal combustion engine, and method of controlling the same

Also Published As

Publication number Publication date
JP2008163871A (ja) 2008-07-17
CN101573514A (zh) 2009-11-04
US20100043406A1 (en) 2010-02-25
DE112007003166T5 (de) 2009-11-26

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