HYDROGENATION CATALYST WITH HIGH SULPHUR TOLERANCE

摘要

A catalyst with a high sulphur tolerance for the hydrogenation of middle distillate aromatics which comprises as a support (a) an alumina, the surface of which has been modified by contacting it with a silicon-containing compound, or (b) a silica, the surface of which has been modified by contacting it with an aluminium-containing compound. The support has been treated with air, oxygen or water vapor at an elevated temperature in order to convert the said silicon-containing compound or the said aluminium-containing compound to oxide form. The hydrogenating component of the catalyst is one or more metals of the platinum group.