ZA200302090B - Catalyst composition for purifying exhaust gas. - Google Patents

Catalyst composition for purifying exhaust gas. Download PDF

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Publication number
ZA200302090B
ZA200302090B ZA200302090A ZA200302090A ZA200302090B ZA 200302090 B ZA200302090 B ZA 200302090B ZA 200302090 A ZA200302090 A ZA 200302090A ZA 200302090 A ZA200302090 A ZA 200302090A ZA 200302090 B ZA200302090 B ZA 200302090B
Authority
ZA
South Africa
Prior art keywords
component
amount
present
catalyst composition
composite
Prior art date
Application number
ZA200302090A
Other languages
English (en)
Inventor
Shiang Sung
Original Assignee
Engelhard 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 Engelhard Corp filed Critical Engelhard Corp
Publication of ZA200302090B publication Critical patent/ZA200302090B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • C01G25/006Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts 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
    • B01J23/56Platinum group metals
    • B01J23/63Platinum group metals with rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00Constitutive chemical elements of heterogeneous catalysts
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
ZA200302090A 2000-09-15 2003-03-14 Catalyst composition for purifying exhaust gas. ZA200302090B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/663,312 US6492297B1 (en) 2000-09-15 2000-09-15 Catalyst composition for purifying exhaust gas

Publications (1)

Publication Number Publication Date
ZA200302090B true ZA200302090B (en) 2004-02-16

Family

ID=24661276

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200302090A ZA200302090B (en) 2000-09-15 2003-03-14 Catalyst composition for purifying exhaust gas.

Country Status (12)

Country Link
US (2) US6492297B1 (de)
EP (1) EP1333909B1 (de)
JP (1) JP4292005B2 (de)
KR (1) KR100795267B1 (de)
AT (1) ATE392944T1 (de)
AU (1) AU2001290673A1 (de)
DE (1) DE60133760T2 (de)
DK (1) DK1333909T3 (de)
ES (1) ES2305105T3 (de)
PT (1) PT1333909E (de)
WO (1) WO2002022242A1 (de)
ZA (1) ZA200302090B (de)

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WO2004000454A1 (en) * 2002-06-20 2003-12-31 The Regents Of The University Of California Supported metal catalyst with improved thermal stability
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JP5021188B2 (ja) * 2005-08-01 2012-09-05 株式会社キャタラー 排ガス浄化用触媒
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Also Published As

Publication number Publication date
ATE392944T1 (de) 2008-05-15
US7041263B2 (en) 2006-05-09
ES2305105T3 (es) 2008-11-01
KR100795267B1 (ko) 2008-01-15
PT1333909E (pt) 2008-06-16
KR20030034185A (ko) 2003-05-01
WO2002022242A1 (en) 2002-03-21
JP2004508186A (ja) 2004-03-18
EP1333909B1 (de) 2008-04-23
US20030083194A1 (en) 2003-05-01
AU2001290673A1 (en) 2002-03-26
EP1333909A1 (de) 2003-08-13
JP4292005B2 (ja) 2009-07-08
US6492297B1 (en) 2002-12-10
DK1333909T3 (da) 2008-07-14
DE60133760T2 (de) 2009-07-02
DE60133760D1 (de) 2008-06-05

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