SE7415423L - - Google Patents

Info

Publication number
SE7415423L
SE7415423L SE7415423A SE7415423A SE7415423L SE 7415423 L SE7415423 L SE 7415423L SE 7415423 A SE7415423 A SE 7415423A SE 7415423 A SE7415423 A SE 7415423A SE 7415423 L SE7415423 L SE 7415423L
Authority
SE
Sweden
Prior art keywords
oxide
composite
calcination
tungsten
chromium
Prior art date
Application number
SE7415423A
Other languages
Unknown language ( )
Other versions
SE448348B (en
Inventor
S G Hindin
G R Pond
J C Dettling
Original Assignee
Engelhard Min & Chem
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 US05/423,093 external-priority patent/US3966391A/en
Priority claimed from US423096A external-priority patent/US3870455A/en
Priority claimed from US05/423,095 external-priority patent/US3945946A/en
Priority claimed from US05/423,114 external-priority patent/US3956188A/en
Application filed by Engelhard Min & Chem filed Critical Engelhard Min & Chem
Publication of SE7415423L publication Critical patent/SE7415423L/
Publication of SE448348B publication Critical patent/SE448348B/en

Links

Classifications

    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • 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
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • B01J23/38—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
    • B01J35/60—
    • B01J35/613—

Abstract

1474588 Oxidation catalysts for burners ENGELHARD MINERALS & CHEMICALS CORP 10 Dec 1974 [10 Dec 1973 (4)] 53459/74 Headings B1E and B1F Catalyst compositions comprise a catalytically active calcined composite of alumina, an additional oxidic component which is an oxide of chromium and/or tungsten and/or a rare earth metal and an oxide of titanium, zirconium hafnium and/or thorium, or which is an oxide of chromium and/or tungsten and a rare earth metal oxide and, optionally an oxide of calcium, strontium, barium, silicon and/or tin and a platinum group metal component incorporated in the composite after its calcination. The calcination of the composite is performed at a temperature of at least 850‹C except in the case where the additional oxidic component contains an oxide of chromium and/or tungsten, a rare earth metal oxide and an oxide of calcium, strontium, barium, silicon and/or tin when the minimum temperature is 500‹C. The calcined composite has a surface area of at least 20 m<SP>2</SP>/g after calcination at 1200‹C for two hours. The composite may be supported on an inert carrier such as a ceramic honeycomb before or after incorporation of the platinum group metal component. The catalysts may be promoted by an oxide or sulphide of Mn, V, Cu, Fe, Co or Ni. They may be used in the oxidation of organic compounds and carbon monoxide in, for example, exhaust gases and in the combustion of fuels. The catalytic combustion of unleaded gasoline is described. The fuel is mixed with preheated air, passed serially through two catalyst compositions of the invention supported on ceramic honeycombs separated by a small space to effect adiabatic combustion. The effluent gas is then mixed with more air to effect cooling. Each catalyst composition comprises palladium on a calcined composite of Al 2 O 3 + CeO 2 + Cr 2 O 3 , the upstream honeycomb carrying a greater amount of the composition than the downstream one.
SE7415423A 1973-12-10 1974-12-10 OXIDATION CATALYST, SET TO MAKE IT AND USE OF THE CATALYST FOR COMBUSTION OF CARBON FUEL SE448348B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US05/423,093 US3966391A (en) 1973-12-10 1973-12-10 Method of combustion using high temperature stable catalysts
US423096A US3870455A (en) 1973-12-10 1973-12-10 Method for catalytically supported thermal combustion
US05/423,095 US3945946A (en) 1973-12-10 1973-12-10 Compositions and methods for high temperature stable catalysts
US05/423,114 US3956188A (en) 1973-12-10 1973-12-10 Compositions and methods for high temperature stable catalysts

Publications (2)

Publication Number Publication Date
SE7415423L true SE7415423L (en) 1975-06-11
SE448348B SE448348B (en) 1987-02-16

Family

ID=27503713

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7415423A SE448348B (en) 1973-12-10 1974-12-10 OXIDATION CATALYST, SET TO MAKE IT AND USE OF THE CATALYST FOR COMBUSTION OF CARBON FUEL
SE8005917A SE8005917L (en) 1973-12-10 1980-08-22 CATALYST EVERYBODY WANTS TO MAKE IT SOMETHING LIKE ALSO SETTING UP THE COMBUSTION IN THE PRESENCE OF THESE CATALYST

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8005917A SE8005917L (en) 1973-12-10 1980-08-22 CATALYST EVERYBODY WANTS TO MAKE IT SOMETHING LIKE ALSO SETTING UP THE COMBUSTION IN THE PRESENCE OF THESE CATALYST

Country Status (2)

Country Link
GB (1) GB1474588A (en)
SE (2) SE448348B (en)

Also Published As

Publication number Publication date
SE8005917L (en) 1980-08-22
GB1474588A (en) 1977-05-25
SE448348B (en) 1987-02-16

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