GB1420992A - Emission-control catalysts and a process for their production - Google Patents

Emission-control catalysts and a process for their production

Info

Publication number
GB1420992A
GB1420992A GB1415773A GB1415773A GB1420992A GB 1420992 A GB1420992 A GB 1420992A GB 1415773 A GB1415773 A GB 1415773A GB 1415773 A GB1415773 A GB 1415773A GB 1420992 A GB1420992 A GB 1420992A
Authority
GB
United Kingdom
Prior art keywords
march
emission
production
catalysts
metal
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
GB1415773A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1420992A publication Critical patent/GB1420992A/en
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
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6522—Chromium
    • 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
    • B01J23/8933—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 also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8993—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 also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with chromium, molybdenum or tungsten
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
GB1415773A 1972-03-25 1973-03-23 Emission-control catalysts and a process for their production Expired GB1420992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2214604A DE2214604C3 (de) 1972-03-25 1972-03-25 Verfahren zur Herstellung verbesserter Abgasreinigungs-Katalysatoren

Publications (1)

Publication Number Publication Date
GB1420992A true GB1420992A (en) 1976-01-14

Family

ID=5840129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1415773A Expired GB1420992A (en) 1972-03-25 1973-03-23 Emission-control catalysts and a process for their production

Country Status (7)

Country Link
JP (1) JPS5547932B2 (fr)
CA (1) CA1000934A (fr)
DE (1) DE2214604C3 (fr)
FR (1) FR2177951B1 (fr)
GB (1) GB1420992A (fr)
IT (1) IT977923B (fr)
SE (1) SE392221B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167971A (en) * 1984-12-11 1986-06-11 Nikki Universal Co Ltd Method of treating alumina and preparing a hydrodesulphurisation catalyst

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966790A (en) * 1973-12-10 1976-06-29 Engelhard Minerals & Chemicals Corporation Compositions and methods for high temperature stable catalysts
US4085193A (en) * 1973-12-12 1978-04-18 Mitsubishi Petrochemical Co. Ltd. Catalytic process for reducing nitrogen oxides to nitrogen
FR2293965A1 (fr) * 1974-12-13 1976-07-09 Oxycatalyse Ste Fse Purification des gaz d'echappement des moteurs a explosion ou a combustion interne
CA1067060A (fr) * 1975-08-25 1979-11-27 Mordecai Shelef Catalyseur d'equilibre
MX4509E (es) * 1975-08-27 1982-06-02 Engelhard Min & Chem Composicion catalitica mejorada para oxidar en forma simultanea hidrocarburos gascosos y monoxido de carbono y reducir oxidos de nitrogeno
JPS5261192A (en) * 1975-11-17 1977-05-20 Ngk Insulators Ltd Ceramic honeycomb catalysts
JPS6115567U (ja) * 1984-07-04 1986-01-29 アレック電子株式会社 三次元電磁流速計
DE3502866A1 (de) * 1984-09-19 1986-03-20 Klaus Prof. Dr.rer.nat. 4430 Steinfurt Mangold Zweistufen-verfahren und vorrichtung zur reinigung von verbrennungsgasen
JPS61291026A (ja) * 1985-06-17 1986-12-20 Hitachi Ltd 窒素酸化物と一酸化炭素とを同時に除去する方法
DE3523205A1 (de) * 1985-06-28 1987-01-02 Bayer Ag Traegerkatalysator, verfahren zu seiner herstellung sowie dessen verwendung zur herstellung von hydroxydiphenyl
US5198403A (en) * 1989-02-28 1993-03-30 Degussa Ag Process for producing a catalyst for selective reduction of nitrous oxides with ammonia
GB9020568D0 (en) * 1990-09-20 1990-10-31 Rover Group Supported palladium catalysts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1378393A (fr) * 1963-12-03 1964-11-13 Grace W R & Co Catalyseurs pour le traitement de gaz d'échappement de moteurs à combustion interne et procédé pour leur préparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167971A (en) * 1984-12-11 1986-06-11 Nikki Universal Co Ltd Method of treating alumina and preparing a hydrodesulphurisation catalyst

Also Published As

Publication number Publication date
DE2214604C3 (de) 1975-06-12
FR2177951B1 (fr) 1978-08-04
FR2177951A1 (fr) 1973-11-09
SE392221B (sv) 1977-03-21
JPS5547932B2 (fr) 1980-12-03
DE2214604A1 (de) 1973-10-11
DE2214604B2 (de) 1974-11-07
CA1000934A (en) 1976-12-07
IT977923B (it) 1974-09-20
JPS497186A (fr) 1974-01-22

Similar Documents

Publication Publication Date Title
GB1420992A (en) Emission-control catalysts and a process for their production
GB1440801A (en) Silylhydrocarbyl phosphines their preparation and their use
ES461485A1 (es) Un procedimiento para la preparacion de etilenglicol.
ES442289A1 (es) Procedimiento para convertir un hidrocarburo.
ATE25592T1 (de) Entmetallisierung von kohlenwasserstoffe enthaltenden speisestroemen.
ES8506469A1 (es) Un procedimiento para desmetalizar una corriente de alimentacion que contiene hidrocarburos
GB1296874A (fr)
GB1493810A (en) Method of preparing a supported catalyst
IN167707B (fr)
GB1471327A (en) Catalyst for the oxidation of ammonia
GB1404576A (en) Catalyst
CA2056511A1 (fr) Catalyseurs a hydrogenation et a hydrotraitement et procede connexe
GB1407434A (en) Selective hydrogenation of minor amounts of acetylene in a gas mixture containing major amounts of ethylene
ES474950A1 (es) Mejoras en un procedimiento de hidroformilacion o de hidro- genacion
GB1320863A (en) Sulphided platinum catalysts
GB1440668A (en) Manufacture of ethylbenzene 1-methyl-3-monohalogeno-phenylindans and dihalogen-1-methyl- 3-phenylindans and the manufacture of compounds of these types
GB1420991A (en) Process for purifying exhaust gases from motor vehicles and industrial installations and catalyst for their production/
GB1424629A (en) Process for preparing a ruthenium catalyst and product produced thereby
GB1227816A (fr)
GB1397584A (en) Catalyst and processing using same
ES468569A1 (es) Procedimiento para la fabricacion de 2,3-dimetilpentanal.
GB1174879A (en) A Method of Producing Benzene and Low Molecular Weight Homologs thereof
GB1357918A (en) Hydrogenative hydrocarbon conversion catalysts therefore and methods of preparation
ZA883784B (en) Process for the selective reduction of 2-quinoxaline-4-oxides
GB1240731A (en) Process for the manufacture of aliphatic diamines

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930322