Abstract
Using chromium(III) oxide as catalyst, there were measured the kinetics of dehydrogenation of 2-propanol, the kinetic isotope effects with deuterated 2-propanols, the effect of pretreatment of the catalyst in hydrogen and in oxygen on its activity and the influence of some substances added to the feed on conversion. On the basis of these experimental data, together with some results from the following paper and quantum-chemical models of adsorption and surface reaction, a mechanism of dehydrogenation of secondary alcohols on Cr 2O 3 was proposed. It consists of adsorption and surface reaction, in which the breaking of the C αH α bond is considered the rate determining step, on active centers formed by groups of surface Cr 3+ and O 2− atoms.
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