Propyne hydrogenation: characteristics of a carbon-supported palladium catalyst that exhibits a kinetic discontinuity effect

The hydrogenation of propyne over a 1 wt.% Pd/C catalyst that has previously been shown to exhibit a kinetic discontinuity effect for this reaction has been studied under conditions below the transition point to evaluate the characteristics that permit dramatic changes in conversion and selectivity as a function of hydrogen concentration. (C) 2004 Elsevier B.V All rights reserved.