CA1002030A - Catalysts for purifying exhaust gas and methods of manufacturing same - Google Patents

Catalysts for purifying exhaust gas and methods of manufacturing same

Info

Publication number
CA1002030A
CA1002030A CA163,356A CA163356A CA1002030A CA 1002030 A CA1002030 A CA 1002030A CA 163356 A CA163356 A CA 163356A CA 1002030 A CA1002030 A CA 1002030A
Authority
CA
Canada
Prior art keywords
catalysts
methods
exhaust gas
manufacturing same
purifying exhaust
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
CA163,356A
Other versions
CA163356S (en
Inventor
Itaru Niimi
Akiyoshi Morita
Yasuo Nemoto
Mitsuyoshi Sato
Yasuhisa Kaneko
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Application granted granted Critical
Publication of CA1002030A publication Critical patent/CA1002030A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404Removing only nitrogen compounds
    • B01D53/9409Nitrogen oxides
    • B01D53/9413Processes characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74Iron group metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74Iron group metals
    • B01J23/755Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/86Chromium
    • B01J23/868Chromium copper and chromium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16Reducing
    • B01J37/18Reducing with gases containing free hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20738Iron
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20746Cobalt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20753Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20761Copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20784Chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CA163,356A 1972-02-12 1973-02-09 Catalysts for purifying exhaust gas and methods of manufacturing same Expired CA1002030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47014983A JPS5230957B2 (en) 1972-02-12 1972-02-12

Publications (1)

Publication Number Publication Date
CA1002030A true CA1002030A (en) 1976-12-21

Family

ID=11876184

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,356A Expired CA1002030A (en) 1972-02-12 1973-02-09 Catalysts for purifying exhaust gas and methods of manufacturing same

Country Status (5)

Country Link
US (1) US3928241A (en)
JP (1) JPS5230957B2 (en)
AU (1) AU474848B2 (en)
CA (1) CA1002030A (en)
GB (1) GB1423422A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642303A (en) * 1985-12-27 1987-02-10 Texaco Inc. Catalyst composition
US5482629A (en) * 1994-12-07 1996-01-09 Universal Environmental Technologies, Inc. Method and apparatus for separating particles from liquids
DE19507179C1 (en) * 1995-03-02 1996-03-28 Krupp Vdm Gmbh Catalyst for oxidn. of gaseous sulphur cpds. esp. hydrogen sulphide
US7829035B2 (en) * 2006-01-19 2010-11-09 Massachusetts Institute Of Technology Oxidation catalyst
EP3132841A4 (en) * 2014-04-18 2017-11-22 Atsumitec Co., Ltd. Exhaust gas purification system, catalyst and exhaust gas purification method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564844A (en) * 1948-05-06 1951-08-21 Battelle Development Corp Copper-iron-chromium alloy
US3206414A (en) * 1962-07-10 1965-09-14 Gunther Arnold Method of preparing a catalyst composition comprising nickel, iron and copper and the product thereof
US3565574A (en) * 1968-04-23 1971-02-23 Exxon Research Engineering Co Catalytic conversion of exhaust gas impurities
US3718733A (en) * 1970-02-20 1973-02-27 North American Rockwell Catalytic treatment of exhaust gases
US3699683A (en) * 1971-04-05 1972-10-24 Chemical Construction Corp Engine exhaust emission control system
US3773894A (en) * 1971-07-22 1973-11-20 Exxon Nitrogen oxide conversion using reinforced nickel-copper catalysts

Also Published As

Publication number Publication date
JPS4896476A (en) 1973-12-10
US3928241A (en) 1975-12-23
DE2306785B2 (en) 1976-09-02
AU5208373A (en) 1974-08-15
JPS5230957B2 (en) 1977-08-11
GB1423422A (en) 1976-02-04
DE2306785A1 (en) 1973-08-23
AU474848B2 (en) 1976-08-05

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