ES2034329T3 - Procedimiento de fabricacion de catalizadores para el tratamiento de los gases de escape de los motores de combustion interna. - Google Patents

Procedimiento de fabricacion de catalizadores para el tratamiento de los gases de escape de los motores de combustion interna.

Info

Publication number
ES2034329T3
ES2034329T3 ES198888402549T ES88402549T ES2034329T3 ES 2034329 T3 ES2034329 T3 ES 2034329T3 ES 198888402549 T ES198888402549 T ES 198888402549T ES 88402549 T ES88402549 T ES 88402549T ES 2034329 T3 ES2034329 T3 ES 2034329T3
Authority
ES
Spain
Prior art keywords
internal combustion
exhaust gases
catalysts
combustion engines
treatment
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
ES198888402549T
Other languages
English (en)
Inventor
Gilbert Blanchard
Francois Garreau
Michel Prigent
Richard Dozieres
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.)
Francaise Des Produits Pour Catalyse (r)pro-Catalyse(r) Ste
Original Assignee
Francaise Des Produits Pour Catalyse (r)pro-Catalyse(r) Ste
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 Francaise Des Produits Pour Catalyse (r)pro-Catalyse(r) Ste filed Critical Francaise Des Produits Pour Catalyse (r)pro-Catalyse(r) Ste
Application granted granted Critical
Publication of ES2034329T3 publication Critical patent/ES2034329T3/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
    • 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
    • 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
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—
    • B01J35/30—
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • 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

Abstract

EL PRESENTE INVENTO ES UN CATALIZADOR PARA TRATAR LOS GASES DE ESCAPE DE LOS MOTORES DE COMBUSTION INTERNA Y UN PROCESO DE FABRICACION DE ESTE. EL CATALIZADOR DEL INVENTO COMPRENDE UN SOPORTE MONOLITICO CUYA SUPERFICIE ESTA IMPREGNADA POR UNA FASE CATALITICAMENTE ACTIVA. EN UNA PARTE DE SU LONGITUD, A PARTIR DE UNO DE SUS EXTREMOS, TIENE UNA PRIMERA FASE CATALITICAMENTE ACTIVA, Y EN LA OTRA PARTE DE SU LONGITUD, UNA SEGUNDA FASE CATALITICAMENTE ACTIVA. ESTOS CATALIZADORES PRESENTAN UNA ESTABILIDAD MEJORADA DE LA ACTIVIDAD CON EL PASO DEL TIEMPO. SON ESPECIALMENTE UTILES EN EL CAMPO DE LA POST - COMBUSTION AUTOMOVIL.
ES198888402549T 1987-10-21 1988-10-10 Procedimiento de fabricacion de catalizadores para el tratamiento de los gases de escape de los motores de combustion interna. Expired - Lifetime ES2034329T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8714519A FR2622126B1 (fr) 1987-10-21 1987-10-21 Catalyseur pour le traitement des gaz d'echappement des moteurs a combustion interne et procede de fabrication de ce catalyseur

Publications (1)

Publication Number Publication Date
ES2034329T3 true ES2034329T3 (es) 1993-04-01

Family

ID=9356017

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888402549T Expired - Lifetime ES2034329T3 (es) 1987-10-21 1988-10-10 Procedimiento de fabricacion de catalizadores para el tratamiento de los gases de escape de los motores de combustion interna.

Country Status (12)

Country Link
US (1) US4931419A (es)
EP (1) EP0313434B1 (es)
JP (1) JPH01199646A (es)
KR (1) KR940001799B1 (es)
AT (1) ATE77969T1 (es)
AU (1) AU606222B2 (es)
BR (1) BR8805447A (es)
CA (1) CA1340304C (es)
DE (1) DE3872655T2 (es)
ES (1) ES2034329T3 (es)
FR (1) FR2622126B1 (es)
GR (1) GR3005882T3 (es)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180639A (ja) * 1989-01-06 1990-07-13 N E Chemcat Corp 硫化水素の発生を低減させる排ガス浄化用触媒及びその製造方法
JP2736099B2 (ja) * 1989-02-06 1998-04-02 株式会社日本触媒 ディーゼルエンジン排ガス浄化用触媒
DE3912915C1 (es) * 1989-04-20 1990-12-13 Degussa Ag, 6000 Frankfurt, De
DE69012059T2 (de) * 1989-06-09 1995-03-02 N E Chemcat Corp Abgasreinigungskatalysator mit ausgezeichneter thermischer beständigkeit und verfahren zu seiner herstellung.
US5120695A (en) * 1989-07-28 1992-06-09 Degusaa Aktiengesellschaft (Degussa Ag) Catalyst for purifying exhaust gases from internal combustion engines and gas turbines operated at above the stoichiometric ratio
DE3929297C2 (de) * 1989-07-28 1996-03-14 Degussa Katalysator zur Reinigung von Abgasen aus überstöchiometrisch betriebenen Verbrennungsmotoren und Gasturbinen
US5010051A (en) * 1989-11-08 1991-04-23 Engelhard Corporation Staged three-way conversion catalyst and method of using the same
US5648487A (en) * 1989-11-15 1997-07-15 Ciba-Geigy Corporation Process for the preparation of aminotriazine derivatives
US5106588A (en) * 1990-07-30 1992-04-21 General Motors Corporation Monolithic catalytic converter
DE4032085A1 (de) * 1990-10-10 1992-04-16 Didier Werke Ag Katalysatoranordnung zur reduktion von stickoxiden
FR2670400B1 (fr) * 1990-12-13 1993-04-02 Inst Francais Du Petrole Procede de preparation de catalyseurs multimetalliques.
CA2064977C (en) * 1991-04-05 1998-09-22 Eiichi Shiraishi Catalyst for purifying exhaust gas
JP3086015B2 (ja) * 1991-08-07 2000-09-11 トヨタ自動車株式会社 排気ガス浄化用触媒
US5866498A (en) * 1992-09-28 1999-02-02 Ford Global Technologies, Inc. Composite catalysts for hydrocarbon oxidation
EP0605995B1 (en) * 1993-01-08 1998-09-16 Ford Motor Company Limited A two-stage catalyst system for internal combustion engine
JP3281087B2 (ja) * 1993-02-10 2002-05-13 日本碍子株式会社 排ガス浄化用触媒
EP0622107B1 (en) * 1993-04-28 2000-02-09 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying catalyst in diesel engines
EP0705134B1 (en) * 1993-06-25 1999-04-14 Engelhard Corporation Layered catalyst composite
EP0664147B1 (en) * 1994-01-20 1998-07-22 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gases
US5451388A (en) * 1994-01-21 1995-09-19 Engelhard Corporation Catalytic method and device for controlling VOC. CO and halogenated organic emissions
FR2715580B1 (fr) * 1994-01-31 1996-04-05 Inst Francais Du Petrole Catalyseur de traitement des gaz d'échappement des moteurs à combustion interne.
JP3363564B2 (ja) * 1994-02-04 2003-01-08 トヨタ自動車株式会社 排ガス浄化用触媒
DE69516281T2 (de) * 1994-06-17 2000-08-31 Engelhard Corp Zusammengesetzter katalysator mit schichtstruktur
US5905180A (en) * 1996-01-22 1999-05-18 Regents Of The University Of Minnesota Catalytic oxidative dehydrogenation process and catalyst
US6087298A (en) * 1996-05-14 2000-07-11 Engelhard Corporation Exhaust gas treatment system
US5876680A (en) * 1996-06-12 1999-03-02 Ford Global Technologies, Inc. Bimetallic tungsten/platinum catalysts for lean-burn emissions
CN1073464C (zh) * 1996-12-19 2001-10-24 南京大学 低碳烷烃脱氢催化剂及其制法
CN1129198C (zh) * 1997-02-03 2003-11-26 松下电器产业株式会社 碱性蓄电池的正极活性材料的制造方法
US5888464A (en) * 1997-04-08 1999-03-30 Engelhard Corporation Catalyst composition containing an intimately combined cerium-zirconium oxide
US6254807B1 (en) 1998-01-12 2001-07-03 Regents Of The University Of Minnesota Control of H2 and CO produced in partial oxidation process
GB9805815D0 (en) 1998-03-19 1998-05-13 Johnson Matthey Plc Manufacturing process
JP4012320B2 (ja) * 1998-10-15 2007-11-21 株式会社アイシーティー 希薄燃焼エンジン用排気ガス浄化用触媒
US6540968B1 (en) 1999-05-19 2003-04-01 Ford Global Technologies, Inc. Low-precious metal/high-rare earth oxide catalysts
JP4573993B2 (ja) * 2000-11-09 2010-11-04 日産自動車株式会社 排気ガス浄化用触媒及びその製造方法
JP3721112B2 (ja) * 2001-10-15 2005-11-30 ヴァルティオン テクンニィルリネン ツッツキムスケスクス 窒素酸化物を接触還元する方法とそのための触媒
US20040147394A1 (en) * 2002-03-28 2004-07-29 Wagner Jon P. Catalyst for production of hydrogen
JP2006043634A (ja) * 2004-08-06 2006-02-16 Nissan Motor Co Ltd 排ガス浄化用触媒及び排ガス浄化用触媒の製造方法
JP2006326495A (ja) * 2005-05-26 2006-12-07 Toyota Motor Corp 排ガス浄化用触媒
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
KR100706445B1 (ko) * 2005-09-01 2007-04-10 현대자동차주식회사 배기 가스 정화 촉매 및 그 제조 방법
JP2007075707A (ja) * 2005-09-13 2007-03-29 Hino Motors Ltd 排気浄化装置
DE102006048799B4 (de) 2006-10-16 2018-09-20 Nissan Chemical Industries, Ltd. Verfahren und Einrichtung zum Ablösen eines dünnen Wafers oder bereits vereinzelter Bauelemente eines dünnen Wafers von einem Träger
US20080125313A1 (en) * 2006-11-27 2008-05-29 Fujdala Kyle L Engine Exhaust Catalysts Containing Palladium-Gold
KR20080047950A (ko) * 2006-11-27 2008-05-30 나노스텔라 인코포레이티드 팔라듐-금을 포함하는 엔진 배기가스 촉매
US7534738B2 (en) 2006-11-27 2009-05-19 Nanostellar, Inc. Engine exhaust catalysts containing palladium-gold
US7709414B2 (en) * 2006-11-27 2010-05-04 Nanostellar, Inc. Engine exhaust catalysts containing palladium-gold
US8258070B2 (en) * 2006-11-27 2012-09-04 WGCH Technology Limited Engine exhaust catalysts containing palladium-gold
US9863297B2 (en) 2007-12-12 2018-01-09 Basf Corporation Emission treatment system
US9993771B2 (en) 2007-12-12 2018-06-12 Basf Corporation Emission treatment catalysts, systems and methods
GB201000019D0 (en) 2010-01-04 2010-02-17 Johnson Matthey Plc Coating a monolith substrate with catalyst component
DE102011100017A1 (de) * 2011-04-29 2012-10-31 Süd-Chemie AG Verfahren zur Herstellung gezonter Katalysatoren
US9855547B2 (en) * 2015-10-05 2018-01-02 GM Global Technology Operations LLC Low-temperature oxidation catalysts
JP6954912B2 (ja) * 2016-02-24 2021-10-27 ハルドール・トプサー・アクチエゼルスカベット 区画コーティングされた触媒されたモノリスの製造方法
KR102424107B1 (ko) * 2016-02-24 2022-07-25 토프쉐 에이/에스 촉매화된 모노리스의 제조 방법
CN107626328B (zh) * 2017-10-12 2020-06-09 浙江师范大学 一种用于催化氧化卤代烃的催化剂及其制备方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978193A (en) * 1974-01-29 1976-08-31 Gould Inc. Method and apparatus for treating exhaust gases
US4134733A (en) * 1975-07-09 1979-01-16 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Apparatus for treatment of exhaust gases
DE2530822A1 (de) * 1975-07-10 1977-01-27 Degussa Vorrichtung zur beseitigung der in den abgasen einer brennkraftmaschine enthaltenen schadstoffe
US4552733A (en) * 1975-08-27 1985-11-12 Engelhard Corporation Polyfunctional catalysts and method of use
IT1070099B (it) * 1975-09-23 1985-03-25 Degussa Catalizzatore supportato monolitico e disposizione di catalizzatori supportati monolitici per la depurazione dei gas di scarico di motori a combustione
CA1073363A (en) * 1975-11-24 1980-03-11 Haren S. Gandhi Segmented three-way catalyst
US4053434A (en) * 1976-06-19 1977-10-11 Union Oil Company Of California Exhaust gas conversion catalyst
CA1098105A (en) * 1977-07-15 1981-03-24 Jack C. Summers Catalyst for automotive emission control and method for making same
JPS5586531A (en) * 1978-12-22 1980-06-30 Toyota Central Res & Dev Lab Inc Catalyst for cleaning exhaust gas
JPS56124442A (en) * 1980-03-06 1981-09-30 Toyota Central Res & Dev Lab Inc Catalyst for cleaning of exhaust gas
JPS56126437A (en) * 1980-03-08 1981-10-03 Mazda Motor Corp Catalyst for purification of exhaust gas of automobile
US4374103A (en) * 1981-07-20 1983-02-15 Ford Motor Company Method of using a low cost catalyst system
FR2512004A1 (fr) * 1981-08-27 1983-03-04 Rhone Poulenc Spec Chim Composition d'alumine pour le revetement d'un support de catalyseur, son procede de fabrication et le support de catalyseur obtenu
FR2530489B1 (fr) * 1982-07-26 1987-02-27 Pro Catalyse Procede de fabrication de catalyseurs pour le traitement des gaz d'echappement des moteurs a combustion interne
DE3232729A1 (de) * 1982-09-03 1984-03-08 Degussa Ag, 6000 Frankfurt Verfahren zur herabsetzung der zuendtemperatur von aus dem abgas von dieselmotoren herausgefiltertem dieselruss
JPS59127649A (ja) * 1983-01-05 1984-07-23 Toyota Motor Corp 排気ガス浄化用触媒
US4448756A (en) * 1983-01-28 1984-05-15 Ford Motor Company Process for treatment of exhaust gases
JPS60183036A (ja) * 1984-02-29 1985-09-18 Hitachi Zosen Corp 耐熱性酸化触媒
JPS61197035A (ja) * 1985-02-25 1986-09-01 Toyota Motor Corp 排気ガス浄化用モノリス触媒の製造方法
JPS6265746A (ja) * 1985-09-18 1987-03-25 Toyota Motor Corp 排気ガス浄化用モノリス触媒
JPS6268544A (ja) * 1985-09-20 1987-03-28 Toyota Motor Corp 排気ガス浄化用モノリス触媒
JPS6268542A (ja) * 1985-09-20 1987-03-28 Cataler Kogyo Kk 排気ガス浄化用三元触媒
DE3538107A1 (de) * 1985-10-26 1987-04-30 Man Technologie Gmbh Filter zur reinigung von abgasen

Also Published As

Publication number Publication date
KR940001799B1 (ko) 1994-03-09
EP0313434B1 (fr) 1992-07-08
AU2403888A (en) 1989-04-27
DE3872655T2 (de) 1993-01-28
ATE77969T1 (de) 1992-07-15
CA1340304C (fr) 1999-01-05
JPH01199646A (ja) 1989-08-11
DE3872655D1 (de) 1992-08-13
KR890006289A (ko) 1989-06-12
GR3005882T3 (es) 1993-06-07
EP0313434A1 (fr) 1989-04-26
BR8805447A (pt) 1989-06-27
FR2622126B1 (fr) 1991-06-14
US4931419A (en) 1990-06-05
FR2622126A1 (fr) 1989-04-28
AU606222B2 (en) 1991-01-31

Similar Documents

Publication Publication Date Title
ES2034329T3 (es) Procedimiento de fabricacion de catalizadores para el tratamiento de los gases de escape de los motores de combustion interna.
BR9802036B1 (pt) Catalisador para tratamento de gases de exaustão para motores de combustão interna com duas camadas cataliticamente ativas sobre uma estrutura carreadora e processo para preparação de um catalisador
DE68909975T2 (de) Katalysatorträger und Katalysator zur Behandlung von Motorabgasen und Verfahren zu deren Herstellung.
KR910018081A (ko) 일체형 또는 벌집형 촉매
ATE22232T1 (de) Verfahren zur herstellung von katalysatoren zur reinigung von auspuffgasen aus innenverbrennungsmaschinen.
DE69106439D1 (de) Abgasanlage mit Doppelkonverter für Brennkraftmaschinen zur Verminderung von Kohlenwasserstoffemissionen.
ES451743A1 (es) Perfeccionamientos introducidos en un catalizador monoliticocon soporte o disposiciones de catalizadores monoliticos consoporte.
DE3853258T2 (de) Katalysator zur Abgasreinigung von Dieselmotoren.
CA962074A (en) Catalytic converter for removing pollutants from engine exhaust gas with electrically resistive catalyst support
UA34421C2 (uk) Водна дисперсія для одержання каталізатора для очищення вихлопних газів двигунів внутрішнього згоряння, спосіб її одержання і каталізатор очищення вихлопних газів двигунів внутрішнього згоряння /варіанти/
ES2053556T3 (es) Catalizador para la purificacion de gases de escape del motor de un vehiculo y procedimiento para la produccion del mismo.
CA2223458A1 (en) Catalyst for purifying exhaust gas and a process for purifying exhaust gas
MX9204698A (es) Catalizador para la purificacion de gases de escape del motor, de quemado pobre.
DE59102386D1 (de) Beheizbare katalysatoranordnung für die abgasreinigung von verbrennungsmotoren.
CA2132634A1 (en) Apparatus for the catalytic purification of flowing gases, in particular exhaust gases of internal combustion engines
ES2090113T3 (es) Catalizadores soportados y procedimiento de fabricacion de estos.
SE7609469L (sv) Sett vid rening av bilgaser
ES2099252T3 (es) Catalizador.
CA1000258A (en) Catalyst carrier for catalytic muffler for purifying internal combustion engine exhaust gas
IT1006075B (it) Supporto di catalizzatore per il trattamento catalitico di gas di scarico di motori a combustione interna e metodo per preparare ta le supporto e tale catalizzatore
BR7301064D0 (pt) Catalisadores e processos para tratamento de gases de escape de um motor de combustao interna
JPS53149884A (en) Nitrogen oxides reduction catalyst
IT1042134B (it) Corpo ceramico composito con struttura a nido d ape
IT988626B (it) Processo catalitico per il trat tamento dei gas di scarico di motori a combustione interna

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 313434

Country of ref document: ES