Influence of the support on the catalytic behavior of ruthenium in CO/H/sub 2/ synthesis reactions
Journal Article
·
· J. Catal.; (United States)
OSTI ID:6644919
The support material, including carbon, silica, alumina, and particularly titania, on the activity and the selectivity of ruthenium catalysts in the CO hydrogenation reaction was reported. The nature of the interaction between the support and the Ru crystallites is unclear. Alumina and silica supports do not alter turnover frequencies and molecular weight distributions markedly although alumina does not increase the olefin/paraffin ratio to some extent. Carbon strongly shifts selectivity toward methane formation and also reduces specific activity. Ozaki and coworkers found that carbon-supported ruthenium was much less active than alumina- or silica-supported ruthenium in the ammonia synthesis reaction. Apparently the same trend may exist for the hydrogenation of these two isoelectronic molecules - CO and N/sub 2/, with carbon supports reducing the catalytic activity of ruthenium in these reactions. 4 tables.
- Research Organization:
- Exxon Research and Engineering Co., Linden, NJ
- OSTI ID:
- 6644919
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 63:1; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
HYDROGEN
METALS
METHANATION
METHANE
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METALS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
HYDROGEN
METALS
METHANATION
METHANE
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METALS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS