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WO2008081737A1 - 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
WO2008081737A1
WO2008081737A1 PCT/JP2007/074538 JP2007074538W WO2008081737A1 WO 2008081737 A1 WO2008081737 A1 WO 2008081737A1 JP 2007074538 W JP2007074538 W JP 2007074538W WO 2008081737 A1 WO2008081737 A1 WO 2008081737A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust
cell
combustion engine
internal combustion
exhaust gas
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/JP2007/074538
Other languages
English (en)
Japanese (ja)
Inventor
Hirohito Hirata
Masaya Ibe
Mayuko Osaki
Masaya Kamada
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
Priority to CN2007800488757A priority Critical patent/CN101578432B/zh
Priority to DE112007003177T priority patent/DE112007003177B4/de
Priority to US12/521,380 priority patent/US20100313552A1/en
Publication of WO2008081737A1 publication Critical patent/WO2008081737A1/fr
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
    • F01N3/02—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
    • F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • 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
    • 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
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0242—Coating followed by impregnation
    • 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
    • F01N3/033—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 in combination with other devices
    • 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
    • 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
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/202—Alkali metals
    • 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
    • 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
    • B01D2255/91—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
    • 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
    • F01N2570/14—Nitrogen oxides
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (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)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

L'invention concerne un appareil de purification de gaz d'échappement pour moteur thermique qui, tout en empêchant toute chute de capacité de purification de gaz d'échappement, utilise simultanément un élément de retenue de NOx et un catalyseur. Un catalyseur de réduction d'occlusion de NOx est placé le long du chemin d'échappement d'un moteur thermique. Le catalyseur de réduction d'occlusion de NOx est fourni dans un substrat ayant une cellule d'arrivée de gaz d'échappement dont le côté aval est obstrué et une cellule de sortie de gaz d'échappement dont le côté amont est obstrué, les cellules d'arrivée et de sortie de gaz d'échappement se jouxtant par une partie paroi de la cellule. Une couche de retenue de NOx est disposée sur la surface interne de la cellule d'arrivée de gaz d'échappement et une couche de catalyseur sur la surface interne de la cellule de sortie de gaz d'échappement.
PCT/JP2007/074538 2006-12-28 2007-12-20 Appareil de purification de gaz d'échappement pour moteur thermique Ceased WO2008081737A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800488757A CN101578432B (zh) 2006-12-28 2007-12-20 内燃机的废气净化装置
DE112007003177T DE112007003177B4 (de) 2006-12-28 2007-12-20 Abgasemissionssteuervorrichtung für einen Verbrennungsmotor
US12/521,380 US20100313552A1 (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
JP2006355739A JP4453700B2 (ja) 2006-12-28 2006-12-28 内燃機関の排気ガス浄化装置
JP2006-355739 2006-12-28

Publications (1)

Publication Number Publication Date
WO2008081737A1 true WO2008081737A1 (fr) 2008-07-10

Family

ID=39588421

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074538 Ceased WO2008081737A1 (fr) 2006-12-28 2007-12-20 Appareil de purification de gaz d'échappement pour moteur thermique

Country Status (5)

Country Link
US (1) US20100313552A1 (fr)
JP (1) JP4453700B2 (fr)
CN (1) CN101578432B (fr)
DE (1) DE112007003177B4 (fr)
WO (1) WO2008081737A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100687A1 (de) * 2012-01-27 2013-08-01 Hug Engineering Ag Verfahren zum Erhitzen eines Reinigungs-Strömungskörpers und Reinigungsvorrichtung
JP5765376B2 (ja) * 2012-08-30 2015-08-19 株式会社豊田中央研究所 内燃機関の排気浄化装置
CN105134344A (zh) * 2015-08-17 2015-12-09 南京航空航天大学 一种柴油车尾气污染物同步催化净化耦合装置
JP6939709B2 (ja) * 2018-06-05 2021-09-22 トヨタ自動車株式会社 電気化学リアクタ
MX2021004573A (es) * 2018-10-22 2021-09-08 Shanghai Bixiufu Enterprise Man Co Ltd Sistema y método de tratamiento de emisiones de motor.
US11573155B2 (en) * 2019-12-05 2023-02-07 Southwest Research Institute Generation of nitrogen dioxide for use with burner-based exhaust replication system

Citations (4)

* 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
JP2002188435A (ja) * 2000-10-12 2002-07-05 Toyota Motor Corp 排ガス浄化フィルタ
JP2004243189A (ja) * 2003-02-13 2004-09-02 Hitachi Ltd 内燃機関の排ガス浄化装置

Family Cites Families (9)

* 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
US6162409A (en) * 1999-03-15 2000-12-19 Arthur P. Skelley Process for removing Nox and Sox from exhaust gas
US7107763B2 (en) * 2002-03-29 2006-09-19 Hitachi Metals, Ltd. Ceramic honeycomb filter and exhaust gas-cleaning method
DE10241063A1 (de) * 2002-09-05 2004-03-11 Robert Bosch Gmbh Verfahren zur Abgasnachbehandlung und Vorrichtung hierzu
US6957528B1 (en) * 2004-06-09 2005-10-25 General Motors Corporation No reduction with diesel fuel reformed by nonthermal hyperplasma
JP4270224B2 (ja) * 2005-11-09 2009-05-27 トヨタ自動車株式会社 内燃機関の排気浄化装置

Patent Citations (4)

* 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
JP2002188435A (ja) * 2000-10-12 2002-07-05 Toyota Motor Corp 排ガス浄化フィルタ
JP2004243189A (ja) * 2003-02-13 2004-09-02 Hitachi Ltd 内燃機関の排ガス浄化装置

Also Published As

Publication number Publication date
JP2008163877A (ja) 2008-07-17
DE112007003177T5 (de) 2009-11-12
CN101578432B (zh) 2012-05-09
DE112007003177B4 (de) 2012-07-19
US20100313552A1 (en) 2010-12-16
JP4453700B2 (ja) 2010-04-21
CN101578432A (zh) 2009-11-11

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