WO2008081739A1 - Appareil de purification de gaz d'échappement pour moteur thermique - Google Patents

Appareil de purification de gaz d'échappement pour moteur thermique Download PDF

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Publication number
WO2008081739A1
WO2008081739A1 PCT/JP2007/074540 JP2007074540W WO2008081739A1 WO 2008081739 A1 WO2008081739 A1 WO 2008081739A1 JP 2007074540 W JP2007074540 W JP 2007074540W WO 2008081739 A1 WO2008081739 A1 WO 2008081739A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
exhaust gas
purifying apparatus
gas purifying
Prior art date
Application number
PCT/JP2007/074540
Other languages
English (en)
Japanese (ja)
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
Publication of WO2008081739A1 publication Critical patent/WO2008081739A1/fr

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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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/58—Platinum group metals with alkali- or alkaline earth metals
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
    • 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
    • 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
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • 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
    • F01N2240/28—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 a plasma reactor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Toxicology (AREA)
  • Organic 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)
  • Catalysts (AREA)

Abstract

L'invention concerne un appareil de purification de gaz d'échappement pour moteur thermique qui permet d'accélérer la réaction d'occlusion de NOx. Le débit d'ozone fourni est régulé de façon à ce que le rapport molaire d'ozone au monoxyde d'azote (NO) contenu dans un gaz mixte s'écoulant dans le catalyseur de réduction d'occlusion de NOx soit supérieur à 1.
PCT/JP2007/074540 2006-12-28 2007-12-20 Appareil de purification de gaz d'échappement pour moteur thermique WO2008081739A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-355927 2006-12-28
JP2006355927A JP2008163887A (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
WO2008081739A1 true WO2008081739A1 (fr) 2008-07-10

Family

ID=39588423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074540 WO2008081739A1 (fr) 2006-12-28 2007-12-20 Appareil de purification de gaz d'échappement pour moteur thermique

Country Status (2)

Country Link
JP (1) JP2008163887A (fr)
WO (1) WO2008081739A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5321255B2 (ja) * 2009-06-05 2013-10-23 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP6515481B2 (ja) 2014-10-15 2019-05-22 株式会社デンソー オゾン供給装置
JP6459535B2 (ja) 2015-01-16 2019-01-30 株式会社デンソー オゾン供給装置
JP6358116B2 (ja) 2015-02-03 2018-07-18 株式会社デンソー オゾン供給装置
JP2017155643A (ja) * 2016-03-01 2017-09-07 株式会社Ｓｏｋｅｎ ＮＯｘ浄化装置、およびＮＯｘ浄化装置の製造方法
JP6569601B2 (ja) 2016-05-31 2019-09-04 株式会社デンソー オゾン供給制御装置
JP6887284B2 (ja) * 2017-03-30 2021-06-16 日立Astemo株式会社 排ガス浄化システム
JP2019011691A (ja) * 2017-06-29 2019-01-24 株式会社Ｓｏｋｅｎ 排ガス浄化装置
KR102125201B1 (ko) * 2018-08-24 2020-06-22 강원대학교 산학협력단 디젤엔진 배출 질소산화물 흡장 촉매 시스템 및 이를 이용한 질소산화물 저감 방법
WO2020083165A1 (fr) * 2018-10-22 2020-04-30 上海必修福企业管理有限公司 Système et procédé de purification d'ozone d'échappement de moteur

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
JP2005537419A (ja) * 2002-08-30 2005-12-08 ルノー・エス・アー・エス イオン化空気注入を用いるガスイオン化システムを含む、排気ガス処理システム

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
JP2005537419A (ja) * 2002-08-30 2005-12-08 ルノー・エス・アー・エス イオン化空気注入を用いるガスイオン化システムを含む、排気ガス処理システム

Also Published As

Publication number Publication date
JP2008163887A (ja) 2008-07-17

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