Influence of the support on the catalytic behavior of ruthenium in Co/H/sub 2/ synthesis reactions

Journal Article · Thu May 01 04:00:00 EDT 1980 · J. Catal.; (United States)

OSTI ID:6200539

Vannice, M A; Garten, R L

A comparison of activities and selectivities for the hydrogenation of carbon monoxide of unsupported and supported ruthenium catalysts showed high turnover frequencies for unsupported ruthenium and for ruthenium on titanium dioxide, alumina, and silica, and much lower specific activity for ruthenium on activated carbon. Compared with unsupported ruthenium, silica had little effect on the product distribution, carbon shifted the selectivity to methane, alumina shifted the selectivity towards decreased methane formation and increased olefin selectivity, and titanium dioxide decrease methane formation and increased olefin formation further. The selectivities of the aluminum- and titanium dioxide-supported ruthenium also depended on reaction conditions such as ruthenium loading, hydrogen/carbon dioxide ratio, and pressure. These effects apparently depended on a strong metal-support interaction.

• Research Organization: Exxon Res. Eng. Co.
• OSTI ID: 6200539
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 63:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA
EXPERIMENTAL DATA
HYDROGENATION
INFORMATION
KINETICS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
SPECIFICITY
TRANSITION ELEMENT COMPOUNDS
YIELDS