Collect. Czech. Chem. Commun. 1984, 49, 970-975

Competitive hydrogenation of a pair of substrates in combined two-catalyst systems

Libor Červený, Barbora Vodová and Vlastimil Růžička

Department of Organic Technology, Prague Institute of Chemical Technology, 166 28 Prague 6


A theoretical model has been set up for treating competitive hydrogenations of pairs of substrates on combined two-catalyst systems, assuming that the catalysts act in an independent manner. The hydrogenation rate constants of the two substrates and their relative adsorptitives established on the individual catalysts are used for the calculations. the model has been tested on the substrate system of 2-methyl-3-buten-2-ol and 2-phenylpropene, hydrogenated in methanol or cyclohexane on combined Pt/C, Pd/C, and Rh/C catalyst systems. The calculated and observed data are in a good agreement.