Abstract
Cyclopentadiene was selectively hydrogenated in cyclopentene (S = 100%) between 453 and 493 K over a Cu Al 2O 3 aerogel catalyst in a plug flow reactor. The maximum conversion obtained was 92%. Kinetic studies of the reaction mechanism showed that a Rideal-Eley model operated with adsorbed cyclopentadiene and hydrogen reacting from the gas phase. The apparent activation energy was found to be 52.6 kJ mol −1. It is shown that the cyclopentadiene adsorption coefficients (ΔSa, ΔHa) meet the criteria proposed by Boudart for surface reactions.
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