ES2068524T3 - Composicion catalizadora para la purificacion de gases de escape, catalizador para la purificacion de gases de escape y procedimiento para producir dicho catalizador. - Google Patents

Composicion catalizadora para la purificacion de gases de escape, catalizador para la purificacion de gases de escape y procedimiento para producir dicho catalizador.

Info

Publication number
ES2068524T3
ES2068524T3 ES91310233T ES91310233T ES2068524T3 ES 2068524 T3 ES2068524 T3 ES 2068524T3 ES 91310233 T ES91310233 T ES 91310233T ES 91310233 T ES91310233 T ES 91310233T ES 2068524 T3 ES2068524 T3 ES 2068524T3
Authority
ES
Spain
Prior art keywords
catalyst
exhaust gas
gas purification
procedure
produce
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
ES91310233T
Other languages
English (en)
Inventor
Fumio Abe
Junichi Suzuki
Naomi Noda
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Application granted granted Critical
Publication of ES2068524T3 publication Critical patent/ES2068524T3/es
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
    • B01D53/9445—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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/068—Noble 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
    • 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
    • B01J37/0242—Coating followed by impregnation
    • 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
    • B01J37/0246—Coatings comprising a zeolite
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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

Abstract

SE DESCRIBE UN COMPUESTO CATALITICO PARA LA PURIFICACION DE GASES DE ESCAPE, QUE COMPRENDE (A) UNA ZEOLITA DE ALTO CONTENIDO EN SILICE, QUE TIENE UNA RELACION SIÑAL DE 40 O MAS Y QUE HA SIDO OBJETO DE UN INTERCAMBIO IONICO CON AL MENOS UN METAL SELECCIONADO DE PT, PD, RH, IR Y RU, Y (B) UN OXIDO RESISTENTE AL CALOR QUE CONTIENE AL MENOS UN METAL SELECCIONADO DE PT, PD, RH, IR Y RU. LA COMPOSICION CATALIZADORES ESTA SITUADA EN UN PORTADOR MONOLITICO CON UNA SOLA CAPA O CON DOS COMPONENTES (A) Y (B) COMO CAPAS SEPARADAS. EL CATALIZADOR TIENE UNA ALTA ACTIVIDAD PARA LA PURIFICACION DEL GAS DE ESCAPE INCLUSO CUANDO CONTIENE RH, QUE ES UN COMPONENTE CARO DE LOS CATALIZADORES, EN MUY PEQUEÑAS CANTIDADES.
ES91310233T 1990-11-09 1991-11-05 Composicion catalizadora para la purificacion de gases de escape, catalizador para la purificacion de gases de escape y procedimiento para producir dicho catalizador. Expired - Lifetime ES2068524T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2305429A JP2771321B2 (ja) 1990-11-09 1990-11-09 排気ガス浄化用触媒組成物、排気ガス浄化用触媒及びその製造方法

Publications (1)

Publication Number Publication Date
ES2068524T3 true ES2068524T3 (es) 1995-04-16

Family

ID=17945029

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91310233T Expired - Lifetime ES2068524T3 (es) 1990-11-09 1991-11-05 Composicion catalizadora para la purificacion de gases de escape, catalizador para la purificacion de gases de escape y procedimiento para producir dicho catalizador.

Country Status (7)

Country Link
US (1) US5164350A (es)
EP (1) EP0485180B1 (es)
JP (1) JP2771321B2 (es)
AU (1) AU651143B2 (es)
CA (1) CA2053703C (es)
DE (1) DE69105921T2 (es)
ES (1) ES2068524T3 (es)

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Also Published As

Publication number Publication date
JPH04176337A (ja) 1992-06-24
CA2053703A1 (en) 1992-05-10
EP0485180A1 (en) 1992-05-13
AU8673391A (en) 1992-05-14
DE69105921T2 (de) 1995-06-29
AU651143B2 (en) 1994-07-14
CA2053703C (en) 1997-12-09
JP2771321B2 (ja) 1998-07-02
US5164350A (en) 1992-11-17
EP0485180B1 (en) 1994-12-14
DE69105921D1 (de) 1995-01-26

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