WO2008126662A1 - 排ガス浄化用触媒 - Google Patents

排ガス浄化用触媒 Download PDF

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Publication number
WO2008126662A1
WO2008126662A1 PCT/JP2008/055504 JP2008055504W WO2008126662A1 WO 2008126662 A1 WO2008126662 A1 WO 2008126662A1 JP 2008055504 W JP2008055504 W JP 2008055504W WO 2008126662 A1 WO2008126662 A1 WO 2008126662A1
Authority
WO
WIPO (PCT)
Prior art keywords
complex oxide
cerium
earth elements
catalyst
exhaust gas
Prior art date
Application number
PCT/JP2008/055504
Other languages
English (en)
French (fr)
Inventor
Asuka Hori
Akimasa Hirai
Keiichi Narita
Original Assignee
Cataler Corporation
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 Cataler Corporation filed Critical Cataler Corporation
Priority to EP08738799.9A priority Critical patent/EP2130582B1/en
Priority to CN2008800111651A priority patent/CN101652175B/zh
Publication of WO2008126662A1 publication Critical patent/WO2008126662A1/ja
Priority to US12/560,550 priority patent/US20100004122A1/en
Priority to US14/046,435 priority patent/US20140038812A1/en

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    • 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
    • B01J23/63—Platinum group metals with rare earths or actinides
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J37/0234—Impregnation and coating simultaneously
    • 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
    • B01J37/0244—Coatings comprising several layers
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • B01D2255/1023—Palladium
    • 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
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • B01D2255/407—Zr-Ce mixed oxides
    • 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
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/014—Stoichiometric gasoline engines
    • 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
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
    • F01N2510/0684—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having more than one coating layer, e.g. multi-layered coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

　少ない貴金属使用量で高温条件において高いＮＯｘ浄化性能を達成する。排ガス浄化用触媒（１）は、基材（２）と、基材（２）上に形成されると共に第１複合酸化物とパラジウムと白金とを含んだ下層（３）と、下層（３）上に形成されると共に第２複合酸化物とロジウムとを含んだ上層（４）とを含んでいる。第１複合酸化物は、セリウムとジルコニウムとセリウム以外の希土類元素及びアルカリ土類元素からなる群より選ばれる元素とを含み、パラジウムに対する白金の質量比が１／５０乃至１／２０の範囲内にある。第２複合酸化物は、ジルコニウムとセリウム以外の希土類元素及びアルカリ土類元素からなる群より選ばれる元素とを含み、第１複合酸化物と比較してジルコニウムに対するセリウムの原子比がより小さい。
PCT/JP2008/055504 2007-04-05 2008-03-25 排ガス浄化用触媒 WO2008126662A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08738799.9A EP2130582B1 (en) 2007-04-05 2008-03-25 Catalyst for exhaust gas purification
CN2008800111651A CN101652175B (zh) 2007-04-05 2008-03-25 废气净化用催化剂
US12/560,550 US20100004122A1 (en) 2007-04-05 2009-09-16 Exhaust Gas-Purifying Catalyst
US14/046,435 US20140038812A1 (en) 2007-04-05 2013-10-04 Exhaust gas-purifying catalyst

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007099548A JP5232401B2 (ja) 2007-04-05 2007-04-05 排ガス浄化用触媒
JP2007-099548 2007-04-05

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/560,550 Continuation US20100004122A1 (en) 2007-04-05 2009-09-16 Exhaust Gas-Purifying Catalyst

Publications (1)

Publication Number Publication Date
WO2008126662A1 true WO2008126662A1 (ja) 2008-10-23

Family

ID=39863780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055504 WO2008126662A1 (ja) 2007-04-05 2008-03-25 排ガス浄化用触媒

Country Status (5)

Country Link
US (2) US20100004122A1 (ja)
EP (1) EP2130582B1 (ja)
JP (1) JP5232401B2 (ja)
CN (1) CN101652175B (ja)
WO (1) WO2008126662A1 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5391664B2 (ja) * 2008-11-21 2014-01-15 マツダ株式会社 排気ガス浄化用触媒
JP5323093B2 (ja) * 2008-12-19 2013-10-23 株式会社キャタラー 排ガス浄化用触媒
CN102802784B (zh) * 2009-06-16 2014-12-03 株式会社科特拉 废气净化用催化剂、粉末材料及废气净化用催化剂的制造方法
JP5607901B2 (ja) * 2009-08-06 2014-10-15 ダイハツ工業株式会社 排ガス浄化用触媒
EP2335808B1 (de) * 2009-12-21 2015-06-03 Bernhard Kahlert NO2 Sperrkatalysator
JP5903205B2 (ja) * 2010-01-04 2016-04-13 株式会社キャタラー 排ガス浄化用触媒
JP5549258B2 (ja) * 2010-02-15 2014-07-16 マツダ株式会社 排気ガス浄化用触媒
US8828343B2 (en) * 2010-03-05 2014-09-09 Basf Corporation Carbon monoxide conversion catalyst
JP5287884B2 (ja) 2011-01-27 2013-09-11 トヨタ自動車株式会社 排ガス浄化用触媒
JP5807782B2 (ja) * 2011-12-28 2015-11-10 トヨタ自動車株式会社 排ガス浄化用触媒
JP5992192B2 (ja) * 2012-03-30 2016-09-14 三井金属鉱業株式会社 パラジウム触媒
CN103143351B (zh) * 2013-03-15 2015-04-29 无锡威孚环保催化剂有限公司 三元催化剂
JP5876436B2 (ja) * 2013-04-09 2016-03-02 トヨタ自動車株式会社 排ガス浄化触媒及び排ガス浄化方法
WO2014175349A1 (ja) * 2013-04-26 2014-10-30 三井金属鉱業株式会社 排気ガス浄化触媒用担体、排気ガス浄化用触媒及び排気ガス浄化用触媒構成体
US20150053565A1 (en) * 2013-08-26 2015-02-26 Lam Research Corporation Bottom-up fill in damascene features
GB2554859A (en) * 2016-10-04 2018-04-18 Johnson Matthey Plc NOx adsorber catalyst
GB2560944A (en) * 2017-03-29 2018-10-03 Johnson Matthey Plc NOx adsorber catalyst
JP6925856B2 (ja) * 2017-04-28 2021-08-25 株式会社キャタラー 排ガス浄化用触媒
JP2021531956A (ja) * 2018-07-27 2021-11-25 ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Public Limited Company 改良されたｔｗｃ触媒を含有する高ドーパント担体
CN110918118A (zh) * 2018-09-19 2020-03-27 南京卡邦科技有限公司 一种废气净化用催化剂及其制备方法
JP7171751B2 (ja) * 2018-09-28 2022-11-15 ユミコア日本触媒株式会社 排ガス浄化触媒、排ガスの浄化方法、及び排ガス浄化触媒の製造方法
JP2020163342A (ja) * 2019-03-29 2020-10-08 株式会社キャタラー 排ガス浄化触媒装置
US11788450B2 (en) * 2020-10-30 2023-10-17 Johnson Matthey Public Limited Company TWC catalysts for gasoline engine exhaust gas treatments
EP4052787A1 (en) * 2021-03-02 2022-09-07 Johnson Matthey Public Limited Company Nox storage material

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JPH0760117A (ja) 1993-08-30 1995-03-07 Honda Motor Co Ltd 排気ガス浄化用触媒
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JP2006205050A (ja) * 2005-01-27 2006-08-10 Toyota Motor Corp 排ガス浄化用触媒
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0760117A (ja) 1993-08-30 1995-03-07 Honda Motor Co Ltd 排気ガス浄化用触媒
JPH0824644A (ja) * 1994-07-15 1996-01-30 Toyota Motor Corp 排気ガス浄化用触媒
JP2004298813A (ja) * 2003-03-31 2004-10-28 Mitsui Mining & Smelting Co Ltd 層状触媒
JP2006035043A (ja) * 2004-07-23 2006-02-09 Mazda Motor Corp 排気ガス浄化用触媒
JP2006205050A (ja) * 2005-01-27 2006-08-10 Toyota Motor Corp 排ガス浄化用触媒
JP2006263581A (ja) * 2005-03-24 2006-10-05 Mazda Motor Corp 排気ガス浄化用触媒

Non-Patent Citations (1)

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Title
See also references of EP2130582A4

Also Published As

Publication number Publication date
CN101652175A (zh) 2010-02-17
US20100004122A1 (en) 2010-01-07
US20140038812A1 (en) 2014-02-06
JP5232401B2 (ja) 2013-07-10
JP2008253921A (ja) 2008-10-23
EP2130582A1 (en) 2009-12-09
EP2130582B1 (en) 2017-03-15
CN101652175B (zh) 2013-05-08
EP2130582A4 (en) 2011-09-14

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