ATE149870T1 - Katalysator zur reinigung von abgasen - Google Patents

Katalysator zur reinigung von abgasen

Info

Publication number
ATE149870T1
ATE149870T1 AT92302928T AT92302928T ATE149870T1 AT E149870 T1 ATE149870 T1 AT E149870T1 AT 92302928 T AT92302928 T AT 92302928T AT 92302928 T AT92302928 T AT 92302928T AT E149870 T1 ATE149870 T1 AT E149870T1
Authority
AT
Austria
Prior art keywords
catalyst
exhaust gases
purifying exhaust
exhaust gas
oxide
Prior art date
Application number
AT92302928T
Other languages
English (en)
Inventor
Eiichi Shiraishi
Hideyuki Baba
Kazuo Tsuchitani
Tomohisa Ohata
Original Assignee
Nippon Catalytic Chem Ind
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
Priority claimed from JP3180861A external-priority patent/JPH0523593A/ja
Priority claimed from JP3202752A external-priority patent/JPH0549940A/ja
Priority claimed from JP02279292A external-priority patent/JP3272015B2/ja
Application filed by Nippon Catalytic Chem Ind filed Critical Nippon Catalytic Chem Ind
Application granted granted Critical
Publication of ATE149870T1 publication Critical patent/ATE149870T1/de

Links

Classifications

    • 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
    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or 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
    • B01D2255/206—Rare 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
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
AT92302928T 1991-04-05 1992-04-03 Katalysator zur reinigung von abgasen ATE149870T1 (de)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP7297891 1991-04-05
JP13804391 1991-06-10
JP3180861A JPH0523593A (ja) 1991-07-22 1991-07-22 排気ガス浄化システム
JP20275191 1991-08-13
JP3202752A JPH0549940A (ja) 1991-08-13 1991-08-13 排気ガス浄化システム
JP23027091 1991-09-10
JP23472491 1991-09-13
JP31226691 1991-11-27
JP1875492 1992-02-04
JP02279292A JP3272015B2 (ja) 1992-02-07 1992-02-07 排気ガス浄化用触媒

Publications (1)

Publication Number Publication Date
ATE149870T1 true ATE149870T1 (de) 1997-03-15

Family

ID=27579699

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92302928T ATE149870T1 (de) 1991-04-05 1992-04-03 Katalysator zur reinigung von abgasen

Country Status (7)

Country Link
US (1) US5260249A (de)
EP (1) EP0507590B1 (de)
KR (1) KR960006924B1 (de)
AT (1) ATE149870T1 (de)
BR (1) BR9201213A (de)
CA (1) CA2064977C (de)
DE (1) DE69218017T2 (de)

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CN105983403B (zh) * 2015-02-09 2019-01-01 有研稀土新材料股份有限公司 一种铈锆复合氧化物、其制备方法及催化剂的应用
JP6640339B2 (ja) * 2016-05-20 2020-02-05 株式会社キャタラー ２ストローク汎用エンジン用排ガス浄化触媒
JP7068309B2 (ja) 2016-12-21 2022-05-16 コーニング インコーポレイテッド 焼結システム及び焼結済み物品
CN108126698A (zh) * 2018-01-05 2018-06-08 无锡威孚环保催化剂有限公司 一种选择性净化三元催化剂及其制备方法
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Also Published As

Publication number Publication date
US5260249A (en) 1993-11-09
EP0507590B1 (de) 1997-03-12
KR920019415A (ko) 1992-11-19
EP0507590A1 (de) 1992-10-07
KR960006924B1 (ko) 1996-05-25
CA2064977A1 (en) 1992-10-06
BR9201213A (pt) 1992-12-01
CA2064977C (en) 1998-09-22
DE69218017D1 (de) 1997-04-17
DE69218017T2 (de) 1997-06-19

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