HUP0303322A2 - Nagy oxigéntároló kapacitással rendelkező CeO2/ZrO2 tartalmú katalizátorhordozó és eljárás ennek előállítására - Google Patents

Nagy oxigéntároló kapacitással rendelkező CeO2/ZrO2 tartalmú katalizátorhordozó és eljárás ennek előállítására

Info

Publication number
HUP0303322A2
HUP0303322A2 HU0303322A HUP0303322A HUP0303322A2 HU P0303322 A2 HUP0303322 A2 HU P0303322A2 HU 0303322 A HU0303322 A HU 0303322A HU P0303322 A HUP0303322 A HU P0303322A HU P0303322 A2 HUP0303322 A2 HU P0303322A2
Authority
HU
Hungary
Prior art keywords
mixed oxide
storage capacity
oxide
oxygen storage
high oxygen
Prior art date
Application number
HU0303322A
Other languages
English (en)
Inventor
Rasto Brezny
Takeshi Egami
Manoj M. Koranne
Eugene Mamontov
Original Assignee
W.R. Grace & Co.-Conn.
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 W.R. Grace & Co.-Conn. filed Critical W.R. Grace & Co.-Conn.
Publication of HUP0303322A2 publication Critical patent/HUP0303322A2/hu
Publication of HUP0303322A3 publication Critical patent/HUP0303322A3/hu
Publication of HU225798B1 publication Critical patent/HU225798B1/hu

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

A találmány tárgya elsősorban a gépjárműiparban belső égésű motorokkipufogógázainak tisztítására alkalmazható jó oxigéntároló kapacitásúés nagy oxigénkiengedési sebességű cérium-oxidból és cirkónium-oxidbólálló vegyes oxidkeverék. A találmány szerinti vegyes oxid polifázisosköbös kristályráccsal rendelkezik és az oxigéntároló kapacitásanagyobb mint 300 mmol O2/g minta 1000°C hőmérsékleten végzett 4 órásöregítés után, a vegyes oxid oxigénkiengedési sebessége előnyösennagyobb mint 1,0 mg O2/m2<min és/vagy a kisszögű röntgensugár szórási(SAXS) eljárással meghatározva a vegyes oxid/(Q) normalizált szórásiintenzitása 47-119, ha a Q szórási vektor értéke 0,10 A-1. A találmánytárgyai ezen kívül egy új eljárás polikristályos cérium-oxid éscirkónium-oxid vegyes oxid részecskék előállítására és az eljárássalelőállítható katalizátorok és/vagy katalizátorhordozók. Ó
HU0303322A 2001-03-13 2002-02-20 Catalyst support material having high oxygen storage capacity and method of preparation thereof HU225798B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/804,873 US6528451B2 (en) 2001-03-13 2001-03-13 Catalyst support material having high oxygen storage capacity and method of preparation thereof
PCT/US2002/005375 WO2002072256A2 (en) 2001-03-13 2002-02-20 Catalyst support material having high oxygen storage capacity and method of preparation thereof

Publications (3)

Publication Number Publication Date
HUP0303322A2 true HUP0303322A2 (hu) 2003-12-29
HUP0303322A3 HUP0303322A3 (en) 2005-11-28
HU225798B1 HU225798B1 (en) 2007-09-28

Family

ID=25190074

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0303322A HU225798B1 (en) 2001-03-13 2002-02-20 Catalyst support material having high oxygen storage capacity and method of preparation thereof

Country Status (13)

Country Link
US (1) US6528451B2 (hu)
EP (1) EP1368117B1 (hu)
JP (1) JP4328529B2 (hu)
AT (1) ATE306319T1 (hu)
AU (1) AU2002244121B2 (hu)
BR (1) BR0207856A (hu)
CA (1) CA2440083C (hu)
DE (1) DE60206603T2 (hu)
ES (1) ES2249562T3 (hu)
HU (1) HU225798B1 (hu)
RU (1) RU2286209C2 (hu)
WO (1) WO2002072256A2 (hu)
ZA (1) ZA200306157B (hu)

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JP4328529B2 (ja) 2009-09-09
US20020132732A1 (en) 2002-09-19
HUP0303322A3 (en) 2005-11-28
ATE306319T1 (de) 2005-10-15
CA2440083A1 (en) 2002-09-19
HU225798B1 (en) 2007-09-28
JP2004529837A (ja) 2004-09-30
DE60206603D1 (de) 2006-02-23
WO2002072256A2 (en) 2002-09-19
WO2002072256A3 (en) 2002-12-27
DE60206603T2 (de) 2006-07-13
AU2002244121B2 (en) 2008-04-03
ZA200306157B (en) 2004-09-06
EP1368117B1 (en) 2005-10-12
US6528451B2 (en) 2003-03-04
BR0207856A (pt) 2004-07-06
RU2003130097A (ru) 2005-04-10
RU2286209C2 (ru) 2006-10-27
ES2249562T3 (es) 2006-04-01
CA2440083C (en) 2010-06-29

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