Collect. Czech. Chem. Commun. 1981, 46, 2076-2082

Hydrogenation of alkenes on a nickel-tungsten-alumina catalyst

Jan Uchytil, Eva Kočová and Miloš Kraus

Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol


Eleven C2 to C8 alkenes were hydrogenated on a reduced sulphided industrial nickel-tungsten catalyst. Kinetics of the reaction was investigated in detail for ethylene and data were correlated by different equations. Best fit was obtained by three equations of the Langmuir-Hinshelwood type and these were used to describe hydrogenation of the other alkenes. Logarithms of the rate constants obtained were correlated linearly with the sum of steric constants E0s of substituents of semihydrogenated state R1R2R3C-*. Also adsorption coefficients of alkenes were structure dependent, increased with molecular weight of alkene and correlated roughly with boiling points.