Role of CH bond breaking in the epoxidation of ethylene

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

OSTI ID:6223156

Van Santen, R A; Moolhuysen, J; Sachtler, W M.H.

Ethylene and deuterated ethylene epoxidation on silver was studied on chlorine-modified catalyst in order to elucidate the mechanism by which the epoxidation of deuterated ethylene proceeds at a higher rate than that of ethylene, as was reported by Cant and Hall. The isotope effect strongly decreased with increasing selectivity as a result of the chlorinate surface and it increased with increasing temperature. The rate of epoxide formation increased and that of carbon dioxide formation decreased when ethylene was replaced by deuterated ethylene, in agreement with the results by Cant and Hall. Kinetic studies suggested that the rate of oxygen adsorption was rate-limiting. The results indicated that the surface oxygen species responsible for epoxide formation can also react with ethylene to give an intermediate ethylene species which undergoes total combustion.

• Research Organization: Shell Res. B.V.
• OSTI ID: 6223156
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 65:2; 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)
400302 -- Organic Chemistry-- Isotope Effects-- (-1987)
ADSORPTION
ALKENES
CATALYTIC EFFECTS
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
DATA
DEUTERIUM
ELEMENTS
EPOXIDES
ETHYLENE
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
KINETICS
LIGHT NUCLEI
METALS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN
REACTION INTERMEDIATES
REACTION KINETICS
SILVER
SORPTION
STABLE ISOTOPES
SYNTHESIS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS