Role of carbonaceous deposits in the hydrogenation of hydrocarbons on platinum catalysts. [Cyclopropane]
Journal Article
·
· J. Phys. Chem.; (United States)
Pulsed hydrogenation of ethylene at -31/sup 0/C and the hydrogenolysis of cyclopropane at 0/sup 0/C in hydrogen or helium carrier gas on silica-supported platinum showed that the conversion was catalyzed by the platinum surface and that carbonaceous residues, which accumulated at a rate of approx. 0.05Vertical Bar3< of each pulse, were inactive. The residues were removed by reaction with hydrogen at 50/sup 0/-100/sup 0/C. The data were compatible with a mechanism in which the platinum surface is almost covered by a monolayer of hydrocarbon during the reaction and in which the adsorbed material reacts sequentially with two adsorbed hydrogen atoms and desorbs as alkane.
- Research Organization:
- Northwestern Univ.
- OSTI ID:
- 6971314
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:2; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALKENES
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CYCLOALKANES
DEPOSITS
ELEMENTS
ETHYLENE
HYDROCARBONS
HYDROGENATION
KINETICS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PULSE TECHNIQUES
REACTION KINETICS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SURFACE PROPERTIES
TRANSITION ELEMENTS
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALKENES
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CYCLOALKANES
DEPOSITS
ELEMENTS
ETHYLENE
HYDROCARBONS
HYDROGENATION
KINETICS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PULSE TECHNIQUES
REACTION KINETICS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SURFACE PROPERTIES
TRANSITION ELEMENTS