Support and crystallite effects in CO hydrogenation on nickel
Journal Article
·
· J. Catal.; (United States)
The adsorption and reaction of carbon monoxide and hydrogen were studied on seven alumina-supported catalysts containing 0.5-23% nickel, four silica-supported catalysts containing 2.7-15% nickel, and 2.8 and 15% nickel on titanium oxide. On the silica and alumina-supported catalysts, hydrogen adsorption, per cent reduction of metal, carbon monoxide/hydrogen adsorption ratio, and methane yield increased with increasing metal dispersion, the methane turnover number decreased with increasing metal dispersion, and the carbon monoxide turnover number was not affected by dispersion. Hydrogen adsorption was suppressed by the titanium dioxide support. The suppression of hydrogen adsorption and the activity for carbon monoxide hydrogenation decreased as a function of support in the order TiO/sub 2/ > Al/sub 2/O/sub 3/ > SiO/sub 2/ and apparently depended on the strength of the electronic interaction of support and metal. The selectivity shifted to higher hydrocarbons as the metal dispersion increased and as the carbon monoxide/hydrogen adsorption ratio increased. Effects of preparation method are also reported.
- Research Organization:
- Brigham Young Univ.
- OSTI ID:
- 6270509
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 65:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Thu May 01 00:00:00 EDT 1980
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OSTI ID:6200539
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Mon Dec 31 23:00:00 EST 1979
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Related Subjects
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ADSORPTION
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
COMPLEXES
DATA
DISPERSIONS
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN
HYDROGENATION
INFORMATION
KINETICS
METALS
METHANE
NICKEL
NICKEL COMPLEXES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SORPTION
SPECIFICITY
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
YIELDS
10 SYNTHETIC FUELS
ADSORPTION
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
COMPLEXES
DATA
DISPERSIONS
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN
HYDROGENATION
INFORMATION
KINETICS
METALS
METHANE
NICKEL
NICKEL COMPLEXES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SORPTION
SPECIFICITY
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
YIELDS