Fundamental studies of hydrocarbon conversions over supported bimetallic catalysts

Technical Report · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6902323· OSTI ID:6902323

Smale, M W

The reactions of ethane and ethylene over selected silica-supported group 8 metal catalysts have been investigated using reaction studies and nuclear magnetic resonance (NMR) spectroscopy. The activity of the ruthenium-group IB bimetallic system for the ethane hydrogenolysis reaction was investigated as a function of group IB metal content and ethane and hydrogen partial pressures, while the reactions of ethylene over silica-supported platinum catalysts were studied using NMR. The turnover frequency of the silica-supported ruthenium catalysts for ethane hydrogenolysis as either copper or silver was added tended to change as the group IB metal was first added until a critical point was reached. The apparent orders of reaction for ethane hydrogenolysis over the ruthenium-group IB catalysts was measured as a function of temperature. The reactions of ethylene over silica-supported platinum catalysts has been investigated using NMR. The ethylene to surface platinum atom ratio used in this work was in the 10 to 20 range, far higher than that used for typical single crystal studies.

• Research Organization: Ames Lab., IA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6902323
• Report Number(s): IS-T-1405; ON: DE90011744
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ADSORPTION
ALKANES
ALKENES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COPPER
ELEMENTS
ENERGY
ETHANE
ETHYLENE
HYDROCARBONS
HYDROGEN
KINETICS
METALS
MINERALS
NMR SPECTRA
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PLATINUM
PLATINUM METALS
REACTION KINETICS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SILVER
SIZE
SORPTION
SPECTRA
TEMPERATURE EFFECTS
TRANSITION ELEMENTS