Selective Hydrogenation of Acetylene and hydrodechlorination of 1,2-Dichloroethane over Pd-Group IB Bi-Metallic Catalysts

摘要

Selectivity and conversion to ethylene were studied in the following reactions: hydrogenation of acetylene and hydrodechlorination of 1,2-dichloroethane. These reactions correspond to a class of reactions, such that A->B->C. In order to maximize the concentration of B, the ratio of the successive rate constants must be considered. This has been accomplished using Pd as the primary metal, which is clustered with a group IB metal. The group IB metal serves as a selectivity and conversion promoter. Gamma-alumina is the most effective support for this reaction. However, silica is used as the support for the hydrodechlorination reaction because the HCl evolved during the reaction poisons alumina.