ES474247A1 - Un procedimiento para tratar gases de escape que contienen hidrocarburos de monoxido de carbono y oxidos de nitrogeno - Google Patents

Un procedimiento para tratar gases de escape que contienen hidrocarburos de monoxido de carbono y oxidos de nitrogeno

Info

Publication number
ES474247A1
ES474247A1 ES474247A ES474247A ES474247A1 ES 474247 A1 ES474247 A1 ES 474247A1 ES 474247 A ES474247 A ES 474247A ES 474247 A ES474247 A ES 474247A ES 474247 A1 ES474247 A1 ES 474247A1
Authority
ES
Spain
Prior art keywords
catalyst
catalysts
waste gas
gas streams
preparing
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
Application number
ES474247A
Other languages
English (en)
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.)
Engelhard Minerals and Chemicals Corp
Original Assignee
Engelhard Minerals and Chemicals 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 Engelhard Minerals and Chemicals Corp filed Critical Engelhard Minerals and Chemicals Corp
Publication of ES474247A1 publication Critical patent/ES474247A1/es
Expired 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
    • 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
    • B01J33/00—Protection of catalysts, e.g. by coating
    • 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

Un procedimiento para tratar gases de escape que contienen hidrocarburos, monóxido de carbono y óxidos de nitrógeno resultantes de la combustión en una relación sustancialmente estequiométrica de aire/combustible, que comprende hacer pasar dichos gases sobre una composición de catalizador de tamaño grande que consiste esencialmente en una cantidad catalíticamente eficaz de componente metálico acelerador catalíticamente activo y soporte de óxido refractario de elevada superficie, teniendo depositada dicho catalizador de tamaño grande en su superficie alúmina catalíticamente activa o uno de sus precursores de alúmina hidratada mezclado con óxido ce cerio, en una cantidad suficiente para aumentar la resistencia del catalizador al envenenamiento por materiales extraños, con lo cual se oxidan dichos hidrocarburos y monóxidos de carbono y simultáneamente se reducen dichos óxidos de nitrógeno de dichos gases de escape.
ES474247A 1977-01-06 1978-10-16 Un procedimiento para tratar gases de escape que contienen hidrocarburos de monoxido de carbono y oxidos de nitrogeno Expired ES474247A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/757,174 US4206087A (en) 1977-01-06 1977-01-06 Catalyst for reducing pollutants in waste gas streams and process for preparing the catalyst

Publications (1)

Publication Number Publication Date
ES474247A1 true ES474247A1 (es) 1979-12-16

Family

ID=25046696

Family Applications (2)

Application Number Title Priority Date Filing Date
ES465813A Expired ES465813A1 (es) 1977-01-06 1978-01-05 Un procedimiento para preparar una composicion catalitica
ES474247A Expired ES474247A1 (es) 1977-01-06 1978-10-16 Un procedimiento para tratar gases de escape que contienen hidrocarburos de monoxido de carbono y oxidos de nitrogeno

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES465813A Expired ES465813A1 (es) 1977-01-06 1978-01-05 Un procedimiento para preparar una composicion catalitica

Country Status (16)

Country Link
US (1) US4206087A (es)
JP (1) JPS5385791A (es)
AR (1) AR222788A1 (es)
AU (1) AU517026B2 (es)
BE (1) BE862720A (es)
BR (1) BR7800094A (es)
CA (1) CA1115682A (es)
DD (1) DD135275A5 (es)
DE (1) DE2758451A1 (es)
ES (2) ES465813A1 (es)
FR (1) FR2376699A1 (es)
GB (1) GB1594531A (es)
IT (1) IT1103106B (es)
MX (1) MX5393E (es)
PL (1) PL203862A1 (es)
SE (1) SE448065B (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK144996C (da) * 1980-05-19 1982-12-20 Haldor Topsoe As Fremgangsmaade ved udfoerelse af katalytiske eksoterme gasfaseprocesser og fremgangsmaade til fremstilling af en katalysator dertil
US4331565A (en) * 1980-11-28 1982-05-25 General Motors Corporation Method for forming high surface area catalyst carrier and catalyst using same
JPS57209819A (en) * 1981-06-19 1982-12-23 Nissan Motor Co Ltd Preparation of active alumina pellet supporting cerium uniformly
JPS60110335A (ja) * 1983-11-21 1985-06-15 Nissan Motor Co Ltd 排ガス浄化用触媒
JPS60110334A (ja) * 1983-11-21 1985-06-15 Nissan Motor Co Ltd 排ガス浄化用触媒の製造方法
JPS6135853A (ja) * 1984-07-27 1986-02-20 Nikki Universal Co Ltd 防毒マスク用一酸化炭素除去触媒
US4708946A (en) * 1985-05-23 1987-11-24 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas
DE3539125C1 (de) * 1985-11-05 1987-01-02 Hoechst Ag Verfahren zur Herstellung eines Traegerkatalysators
EP0244127A1 (en) * 1986-04-16 1987-11-04 Johnson Matthey, Inc., Method for catalytically controlling exhaust gaz from automobiles
US4782039A (en) * 1986-05-19 1988-11-01 Johnson Matthey, Inc. Selective catalytic reduction catalyst and a process for preparing the catalyst
DE3807907A1 (de) * 1987-03-13 1988-10-13 Mitsubishi Motors Corp Sauerstoffuehler, und lambdaregelung fuer eine brennkraftmaschine mit einem solchen fuehler
US4839146A (en) * 1987-04-15 1989-06-13 General Motors Corporation Catalyst for simultaneous NO decomposition and CO oxidation under cycled operating conditions
US4895824A (en) * 1987-09-08 1990-01-23 W. R. Grace & Co.-Conn. Add-on hydrogen sulfide trap
DE3835184A1 (de) * 1987-10-30 1989-05-11 Degussa Platin-freier dreiwegkatalysator
CA1329580C (en) * 1987-12-28 1994-05-17 Pochen Chu Catalytic cracking catalysts for metals laden feeds
US5258340A (en) * 1991-02-15 1993-11-02 Philip Morris Incorporated Mixed transition metal oxide catalysts for conversion of carbon monoxide and method for producing the catalysts
AU1731195A (en) * 1994-01-27 1995-08-15 Engelhard Corporation Process for recovering catalyst supports
US6080377A (en) * 1995-04-27 2000-06-27 Engelhard Corporation Method of abating NOx and a catalytic material therefor
US6471924B1 (en) 1995-07-12 2002-10-29 Engelhard Corporation Method and apparatus for NOx abatement in lean gaseous streams
US5792436A (en) * 1996-05-13 1998-08-11 Engelhard Corporation Method for using a regenerable catalyzed trap
JP4164884B2 (ja) * 1997-08-08 2008-10-15 マツダ株式会社 排気ガス浄化用触媒
US6497848B1 (en) 1999-04-02 2002-12-24 Engelhard Corporation Catalytic trap with potassium component and method of using the same
JP3715482B2 (ja) * 1999-11-04 2005-11-09 エヌ・イーケムキャット株式会社 水素含有ガス中の一酸化炭素選択酸化触媒並びに該触媒を用いた一酸化炭素除去方法及び固体高分子電解質型燃料電池システム
KR100825157B1 (ko) * 2000-11-08 2008-04-24 이데미쓰 고산 가부시키가이샤 탄화수소의 개질 촉매 및 이를 사용하는 탄화수소의 개질방법
US6607704B2 (en) * 2001-10-18 2003-08-19 Ford Global Technologies, Llc Sulfur tolerant lean NOx trap
WO2009061397A2 (en) * 2007-11-05 2009-05-14 Corning Incorporated Low expansion cement compositions for ceramic monoliths
JP6662852B2 (ja) * 2015-04-07 2020-03-11 ユミコア日本触媒株式会社 内燃機関排気ガスの浄化触媒及び該触媒を用いた排気ガス浄化方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565830A (en) * 1963-02-07 1971-02-23 Engelhard Min & Chem Coated film of catalytically active oxide on a refractory support
FR2140575B1 (es) * 1971-06-11 1977-12-23 Grace W R Ltd
US3741725A (en) * 1971-08-12 1973-06-26 J Graham Catalytic control of auto exhaust emissions
JPS5338714B2 (es) * 1971-10-04 1978-10-17
NL7400525A (es) * 1973-01-27 1974-07-30
US3914376A (en) * 1973-02-08 1975-10-21 Monsanto Co Layered rhodium and nickel catalyst for NO{HD x {b reduction
JPS5322557B2 (es) * 1973-04-13 1978-07-10
US3848257A (en) * 1973-11-23 1974-11-12 Bendix Corp Device for printing coded labels and the like

Also Published As

Publication number Publication date
PL203862A1 (pl) 1978-09-25
DD135275A5 (de) 1979-04-25
SE7800159L (sv) 1978-09-04
FR2376699A1 (fr) 1978-08-04
IT1103106B (it) 1985-10-14
AU3215778A (en) 1979-07-12
SE448065B (sv) 1987-01-19
DE2758451A1 (de) 1978-07-13
FR2376699B1 (es) 1984-12-14
JPS5385791A (en) 1978-07-28
DE2758451C2 (es) 1988-08-18
ES465813A1 (es) 1979-01-01
AU517026B2 (en) 1981-07-02
GB1594531A (en) 1981-07-30
BE862720A (fr) 1978-07-06
AR222788A1 (es) 1981-06-30
CA1115682A (en) 1982-01-05
BR7800094A (pt) 1978-08-15
US4206087A (en) 1980-06-03
IT7847533A0 (it) 1978-01-05
MX5393E (es) 1983-07-08

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