IT1075863B - Catalizzatore per la depurazione dei gas di scarico di autoveicoli - Google Patents

Catalizzatore per la depurazione dei gas di scarico di autoveicoli

Info

Publication number
IT1075863B
IT1075863B IT28833/76A IT2883376A IT1075863B IT 1075863 B IT1075863 B IT 1075863B IT 28833/76 A IT28833/76 A IT 28833/76A IT 2883376 A IT2883376 A IT 2883376A IT 1075863 B IT1075863 B IT 1075863B
Authority
IT
Italy
Prior art keywords
purification
exhaust gases
catalyst
vehicle exhaust
value
Prior art date
Application number
IT28833/76A
Other languages
English (en)
Original Assignee
Johnson Matthey Co 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
Priority claimed from GB45493/75A external-priority patent/GB1568370A/en
Application filed by Johnson Matthey Co Ltd filed Critical Johnson Matthey Co Ltd
Application granted granted Critical
Publication of IT1075863B publication Critical patent/IT1075863B/it

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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the 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
    • B01J23/38—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
    • 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)
  • 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)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
IT28833/76A 1975-10-31 1976-10-29 Catalizzatore per la depurazione dei gas di scarico di autoveicoli IT1075863B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB45493/75A GB1568370A (en) 1975-10-31 1975-10-31 Catalysis
GB2537076 1976-06-18

Publications (1)

Publication Number Publication Date
IT1075863B true IT1075863B (it) 1985-04-22

Family

ID=26257646

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28833/76A IT1075863B (it) 1975-10-31 1976-10-29 Catalizzatore per la depurazione dei gas di scarico di autoveicoli

Country Status (7)

Country Link
US (1) US4127510A (it)
JP (1) JPS5260286A (it)
CA (1) CA1090317A (it)
DE (1) DE2649829A1 (it)
FR (1) FR2329346A1 (it)
IT (1) IT1075863B (it)
SE (2) SE433178B (it)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU76107A1 (it) * 1976-10-29 1978-05-16
US4312955A (en) * 1980-12-01 1982-01-26 Union Carbide Corporation Process for the production of methanol from synthesis gas
BR8502767A (pt) * 1984-06-14 1986-02-18 Engelhard Corp Processo para oxidar simultaneamente hidrocarbonetos gasosos e monoxido de carbono,processo para preparacao de catalisador de tres vias,e processo para oxidacao de hidrocarbonetos e monosido de carbono e para reducao de oxidos de nitrogenio em uma corrente de gas
US4675308A (en) * 1984-06-14 1987-06-23 Engelhard Corporation Three-way catalyst for lean operating engines
US4678770A (en) * 1985-01-31 1987-07-07 Engelhard Corporation Three-way catalyst for lean exhaust systems
JPS6434443A (en) * 1987-07-14 1989-02-03 Lonza Ag Catalyst for oxidizing carbon compound
YU47516B (sh) * 1990-06-21 1995-10-03 Ihtm-Oour Institut Za Katalizu I Hemijsko Inženjerstvo, Rj Kataliza Perovskitni materijali, katalizatori i postupak dobijanja perovskita
CA2046951A1 (en) * 1990-07-19 1992-01-20 Akinori Eshita Catalyst for purifying exhaust gas and method of using same
DE4209198C1 (it) * 1992-03-18 1993-07-01 Mannesmann Ag, 4000 Duesseldorf, De
US5234881A (en) * 1992-06-05 1993-08-10 Ford Motor Company Binary LA-PA oxide catalyst and method of making the catalyst
US5925590A (en) * 1994-05-25 1999-07-20 Eltron Research, Inc. Catalysts utilizing oxygen-deficient metal oxide compound for removal of exhaust gas constituents
EP0788828B1 (en) * 1996-02-09 2003-11-12 Isuzu Motors, Ltd. NOx decomposition catalyst and exhaust gas purifier using said catalyst
JP3377676B2 (ja) * 1996-04-05 2003-02-17 ダイハツ工業株式会社 排ガス浄化用触媒
US5977017A (en) * 1996-04-10 1999-11-02 Catalytic Solutions, Inc. Perovskite-type metal oxide compounds
US7014825B2 (en) * 1996-04-10 2006-03-21 Catalytic Solutions, Inc. Perovskite-type metal oxide compounds and methods of making and using thereof
US6129898A (en) * 1998-08-17 2000-10-10 Ford Global Technologies, Inc. NOx trap catalyst for lean burn engines
US6497848B1 (en) 1999-04-02 2002-12-24 Engelhard Corporation Catalytic trap with potassium component and method of using the same
US20030045423A1 (en) * 2001-06-04 2003-03-06 Conoco Inc. Supported rhodium-lanthanide based catalysts and process for producing synthesis gas
JP3843091B2 (ja) * 2003-08-25 2006-11-08 本田技研工業株式会社 排ガス浄化触媒およびその製造方法、ならびに車用排ガス浄化触媒装置
JP4204487B2 (ja) * 2004-01-21 2009-01-07 本田技研工業株式会社 排ガス浄化触媒及びその製造方法、並びに車用排ガス浄化触媒装置
US7749474B2 (en) * 2004-08-12 2010-07-06 Ford Global Technologies, Llc Catalyst composition for use in a lean NOx trap and method of using
US7811961B2 (en) * 2004-08-12 2010-10-12 Ford Global Technologies, Llc Methods and formulations for enhancing NH3 adsorption capacity of selective catalytic reduction catalysts
US7622095B2 (en) * 2004-08-12 2009-11-24 Ford Global Technologies, Llc Catalyst composition for use in a lean NOx trap and method of using
US20060035782A1 (en) * 2004-08-12 2006-02-16 Ford Global Technologies, Llc PROCESSING METHODS AND FORMULATIONS TO ENHANCE STABILITY OF LEAN-NOx-TRAP CATALYSTS BASED ON ALKALI- AND ALKALINE-EARTH-METAL COMPOUNDS
US7137249B2 (en) * 2004-08-12 2006-11-21 Ford Global Technologies, Llc Thermally stable lean nox trap
GB0420794D0 (en) * 2004-09-18 2004-10-20 Johnson Matthey Plc Compound
US7433023B2 (en) * 2004-09-20 2008-10-07 Applied Kinetics, Inc. Apparatuses and methods for measuring head suspensions and head suspension assemblies
US8115373B2 (en) 2005-07-06 2012-02-14 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
CN101443119B (zh) * 2006-04-12 2013-03-13 微小分子股份有限公司 耐硫排放物催化剂
AU2009204647A1 (en) * 2008-01-16 2009-07-23 Very Small Particle Company Limited Fuel additive

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711397A (en) * 1970-11-02 1973-01-16 Ppg Industries Inc Electrode and process for making same
US3773894A (en) * 1971-07-22 1973-11-20 Exxon Nitrogen oxide conversion using reinforced nickel-copper catalysts
JPS4852691A (it) * 1971-10-19 1973-07-24
DE2155338C2 (de) * 1971-11-08 1983-11-10 Degussa Ag, 6000 Frankfurt Verwendung eines die Elemente Ni, Co und/oder Fe sowie Ru, Ti und/oder Mn und gegebenenfalls La, Sr und/oder Ba in oxidischer Form enthaltenden Trägerkatalysators zur Oxidation brennbarer Bestandteile von Gasgemischen
US3905918A (en) * 1972-09-16 1975-09-16 Heraeus Gmbh W C Catalyst for purifying exhaust gases
DE2245607A1 (de) * 1972-09-16 1974-03-28 Heraeus Gmbh W C Katalysator zur reinigung von abgasen
US3907968A (en) * 1972-12-29 1975-09-23 Gulf Research Development Co Process for reducing the content of nitrogen oxides in a gaseous mixture containing the same
US3972837A (en) * 1973-07-03 1976-08-03 Johnson Matthey & Co., Limited Catalyst for purifying automotive exhaust gases
US3897367A (en) * 1973-10-10 1975-07-29 Du Pont Metal oxide catalytic compositions
US4001143A (en) * 1975-04-08 1977-01-04 E. I. Du Pont De Nemours And Company Catalyst preparation

Also Published As

Publication number Publication date
FR2329346B1 (it) 1982-02-26
SE433178B (sv) 1984-05-14
SE7611868L (sv) 1977-05-01
JPS5260286A (en) 1977-05-18
DE2649829C2 (it) 1989-12-07
US4127510A (en) 1978-11-28
FR2329346A1 (fr) 1977-05-27
DE2649829A1 (de) 1977-05-05
CA1090317A (en) 1980-11-25
SE8201659L (sv) 1982-03-16

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951026