Synthesis of Benzene from Methane and Carbon Monoxide over Silica-Supported Rh, Ru and Pd Catalysts

Abstract Benzene was formed selectively among hydrocarbons produced in CH4-CO reaction over silica supported Rh, Ru and Pd catalysts at 573-723 K under atmospheric pressures, although CO2 was the main product, which was formed by the disproportionation of CO. Addition of H2 to CH4-CO reaction accelerated the rate of benzene formation several times, and the selectivity increased considerably.