SELECTIVE HYDROGENATION OF CARBON MONOXIDE ON SUPPORTED Rh CATALYSTS PREREDUCED IN SITU WITH H2O AND CO OR H2

Abstract

Abstract Carbon monoxide was selectively converted to ethylene and propylene(>80 % of C1–C6 hydrocarbons produced) at 433–447 K over SiO2-supported Rh catalysts prereduced in situ with a CO–H2O mixture, while another Rh catalyst obtained by the pretreatment in situ with a H2–H2O mixture yielded ethanol and acetaldehyde at a higher selectivity by a factor of about 100 at 453 K than a usual Rh(O) catalyst reduced with H2 alone.