DE69431980T2 - Verfahren zur Herstellung eines Abgasreinigungskatalysator - Google Patents

Verfahren zur Herstellung eines Abgasreinigungskatalysator

Info

Publication number
DE69431980T2
DE69431980T2 DE69431980T DE69431980T DE69431980T2 DE 69431980 T2 DE69431980 T2 DE 69431980T2 DE 69431980 T DE69431980 T DE 69431980T DE 69431980 T DE69431980 T DE 69431980T DE 69431980 T2 DE69431980 T2 DE 69431980T2
Authority
DE
Germany
Prior art keywords
producing
exhaust gas
gas purifying
purifying catalyst
catalyst
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.)
Expired - Lifetime
Application number
DE69431980T
Other languages
English (en)
Other versions
DE69431980D1 (de
Inventor
Riemi Muramoto
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
Publication of DE69431980D1 publication Critical patent/DE69431980D1/de
Application granted granted Critical
Publication of DE69431980T2 publication Critical patent/DE69431980T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
    • 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
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20—Carbon compounds
    • B01J27/232—Carbonates
    • 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
    • B01D2255/2025—Lithium
    • 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
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2047—Magnesium
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
    • Y10S502/50—Stabilized
    • Y10S502/502—Cystallinity

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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
DE69431980T 1993-12-17 1994-12-16 Verfahren zur Herstellung eines Abgasreinigungskatalysator Expired - Lifetime DE69431980T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31844993A JP3303486B2 (ja) 1993-12-17 1993-12-17 排ガス浄化用触媒の製造方法

Publications (2)

Publication Number Publication Date
DE69431980D1 DE69431980D1 (de) 2003-02-13
DE69431980T2 true DE69431980T2 (de) 2003-11-06

Family

ID=18099257

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431980T Expired - Lifetime DE69431980T2 (de) 1993-12-17 1994-12-16 Verfahren zur Herstellung eines Abgasreinigungskatalysator

Country Status (4)

Country Link
US (1) US5547913A (de)
EP (1) EP0658370B1 (de)
JP (1) JP3303486B2 (de)
DE (1) DE69431980T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3511314B2 (ja) * 1994-07-12 2004-03-29 株式会社キャタラー 排気ガス浄化用触媒および排気ガス浄化方法
JP3227074B2 (ja) * 1995-05-01 2001-11-12 株式会社日立製作所 リーンバーンとストイキ対応内燃機関の排気ガス浄化用触媒及び排気ガス浄化方法
US5939037A (en) * 1997-02-07 1999-08-17 Ford Global Technologies, Inc. Sulfur tolerant NOx traps highly loaded with sodium or potassium
US5953911A (en) 1998-02-04 1999-09-21 Goal Line Environmental Technologies Llc Regeneration of catalyst/absorber
JP2000176298A (ja) * 1998-12-11 2000-06-27 Mazda Motor Corp 排気ガス浄化用触媒及びその製造方法
US6497848B1 (en) 1999-04-02 2002-12-24 Engelhard Corporation Catalytic trap with potassium component and method of using the same
FI118326B (fi) * 2000-04-10 2007-10-15 Ecocat Oy Adsorbenttikatalyytti
JP4195611B2 (ja) * 2000-12-22 2008-12-10 ダブリュ タウンゼンド、バリー 人工足
US6443995B1 (en) 2000-12-22 2002-09-03 Barry W. Townsend Prosthetic foot
US20070078053A1 (en) * 2005-09-30 2007-04-05 U.S.A. As Represented By The Administrator Of The National Aeronautics And Space Administration Catalyst for decomposition of nitrogen oxides
US8475752B2 (en) * 2008-06-27 2013-07-02 Basf Corporation NOx adsorber catalyst with superior low temperature performance
US11944952B2 (en) * 2021-05-28 2024-04-02 Fuel Tech, Inc. Removing contaminants from water with adsorbents

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7307675A (de) * 1972-06-16 1973-12-18
JPS60206448A (ja) * 1984-03-29 1985-10-18 Nissan Motor Co Ltd 排ガス浄化用触媒担体
JPS61181538A (ja) * 1985-02-06 1986-08-14 Matsushita Electric Ind Co Ltd 排ガス浄化用触媒体
JPS6483513A (en) * 1987-09-24 1989-03-29 Agency Ind Science Techn Ultrafine gold particle immobilized alkaline earth metallic compound, production thereof, oxidation catalyst, reduction catalyst and combustible gas sensor element
JP2768946B2 (ja) * 1988-04-13 1998-06-25 東洋シーシーアイ株式会社 耐熱性貴金属触媒及びその製造方法
FR2663245B1 (fr) * 1990-06-13 1992-09-18 Rhone Poulenc Chimie Composition a base d'alumine pour catalyseur et procede de fabrication.
JP3328318B2 (ja) * 1992-05-22 2002-09-24 トヨタ自動車株式会社 排気ガスの浄化方法

Also Published As

Publication number Publication date
DE69431980D1 (de) 2003-02-13
US5547913A (en) 1996-08-20
EP0658370A1 (de) 1995-06-21
EP0658370B1 (de) 2003-01-08
JPH07171399A (ja) 1995-07-11
JP3303486B2 (ja) 2002-07-22

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