Partial hydrogenation of benzene to cyclohexene on ruthenium catalysts supported on La_2O_3-ZnO binary oxides

摘要

The partial hydrogenation of benzene to cyclohexene at 2.34-5.10 Mpa of hydrogen, 125-175 deg C, was studies over Ru catalyst supported on lanthanum and zinc binary oxides with various atomic ratios in a stirred autoclave and in the presence of an aqueous sodium hydroxide solution. Due to the very small particle size of the catalyst, the rate of benzene or cyclohexene conversion Was not affected by mass-transfer limitations, so that the measured kinetic data directly reflect The reaction on the catalyst surface.