Water gas shift reaction in the presence of palladium complexes with diphenyl-m-sulfophenylphosphine

Abstract

A homogeneous catalytic system containing palladium(ii) halides, diphenyl-m-sulfo-phenylphosphine (or palladium halide complexes with diphenyl-m-sulfophenylphosphine) and hydrohalic acid was developed and studied in the liquid-phase water gas shift reaction. The system based on palladium bromide and hydrobromic acid in aqueous acetic acid (20–40 vol.%) showed the highest activity. The dependences of the initial reaction rate on the concentrations of reagents and catalyst components were studied, a mechanism for the process was proposed, and a kinetic model was developed and found to agree well with experimental results.