ES2079219T3 - Disminucion de nox en el gas de escape pobre de motores de vehiculos automoviles. - Google Patents

Disminucion de nox en el gas de escape pobre de motores de vehiculos automoviles.

Info

Publication number
ES2079219T3
ES2079219T3 ES93102637T ES93102637T ES2079219T3 ES 2079219 T3 ES2079219 T3 ES 2079219T3 ES 93102637 T ES93102637 T ES 93102637T ES 93102637 T ES93102637 T ES 93102637T ES 2079219 T3 ES2079219 T3 ES 2079219T3
Authority
ES
Spain
Prior art keywords
exhaust gas
nox
motors
decrease
automobile vehicles
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
ES93102637T
Other languages
English (en)
Inventor
Jurgen Dr Leyrer
Egbert Dr Lox
Bernd Dr Engler
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Application granted granted Critical
Publication of ES2079219T3 publication Critical patent/ES2079219T3/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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J37/0244—Coatings comprising several layers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (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)
  • Hybrid Electric Vehicles (AREA)
  • Treating Waste Gases (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

OBJETO DE LA INVENCION ES UN CATALIZADOR PARA LA REDUCCION DE OXIDO AZOICO, EN GASES DE ESCAPE POCO GRASOS, DE MOTORES DE VEHICULOS. CONTIENE, SOBRE UN CUERPO REFORZADOR DE LA ESTRUCTURA, UN PRIMER REVESTIMIENTO CATALITICO DE OXIDO DE ALUMINIO Y/U OXIDO DE CERIO, DE GRAN SUPERFICIE, IMPREGNADO CON UNA MEZCLA A BASE DE IRIDIO Y PLATINO, COMO COMPONENTES DE METALES NOBLES CATALITICAMENTE ACTIVOS. SOBRE LA PRIMERA CAPA, SE HA APLICADO UNA SEGUNDA CAPA CATALITICA A BASE DE UNA CEOLITA, QUE CONTIENE COBRE Y/O HIERRO, Y QUE ES DEL TIPO MORDENITA.
ES93102637T 1992-03-04 1993-02-19 Disminucion de nox en el gas de escape pobre de motores de vehiculos automoviles. Expired - Lifetime ES2079219T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4206699A DE4206699C2 (de) 1992-03-04 1992-03-04 NO¶x¶-Verminderung im mageren Abgas von Kraftfahrzeugmotoren

Publications (1)

Publication Number Publication Date
ES2079219T3 true ES2079219T3 (es) 1996-01-01

Family

ID=6453141

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93102637T Expired - Lifetime ES2079219T3 (es) 1992-03-04 1993-02-19 Disminucion de nox en el gas de escape pobre de motores de vehiculos automoviles.

Country Status (19)

Country Link
US (1) US5354720A (es)
EP (1) EP0559021B1 (es)
JP (1) JP3502408B2 (es)
KR (1) KR100251608B1 (es)
CN (1) CN1079413A (es)
AT (1) ATE129427T1 (es)
AU (1) AU651517B2 (es)
BR (1) BR9300731A (es)
CA (1) CA2090882C (es)
CZ (1) CZ379992A3 (es)
DE (2) DE4206699C2 (es)
ES (1) ES2079219T3 (es)
HU (1) HU211407B (es)
MX (1) MX9301179A (es)
PL (1) PL171411B1 (es)
RO (1) RO111164B1 (es)
TR (1) TR26500A (es)
TW (1) TW231972B (es)
ZA (1) ZA931486B (es)

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Also Published As

Publication number Publication date
DE4206699A1 (de) 1993-09-09
ZA931486B (en) 1993-10-04
CA2090882A1 (en) 1993-09-05
RO111164B1 (ro) 1996-07-30
ATE129427T1 (de) 1995-11-15
JPH0671179A (ja) 1994-03-15
CZ379992A3 (en) 1994-02-16
KR930019267A (ko) 1993-10-18
BR9300731A (pt) 1993-09-08
HUT66374A (en) 1994-11-28
JP3502408B2 (ja) 2004-03-02
TW231972B (es) 1994-10-11
DE59300801D1 (de) 1995-11-30
TR26500A (tr) 1995-03-15
HU9300582D0 (en) 1993-05-28
PL171411B1 (pl) 1997-04-30
US5354720A (en) 1994-10-11
EP0559021A3 (en) 1993-12-08
EP0559021B1 (de) 1995-10-25
EP0559021A2 (de) 1993-09-08
CN1079413A (zh) 1993-12-15
KR100251608B1 (ko) 2000-04-15
AU3395393A (en) 1993-09-09
CA2090882C (en) 1998-08-18
PL297926A1 (en) 1993-11-15
DE4206699C2 (de) 1996-02-01
MX9301179A (es) 1994-07-29
AU651517B2 (en) 1994-07-21
HU211407B (en) 1995-11-28

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