Abstract: A process for regenerating a spent copper-porous refractory metal oxide carrier composite sorbent for removing sulfur-containing compounds from naphthas in which the spent sorbent is optionally stripped of absorbed naphtha, oxidized to convert absorbed sulfur to sulfates or sulfur dioxide, optionally reduced to further convert absorbed sulfur to sulfur dioxide, and, finally, impregnated with fresh copper via contact with an aqueous solution of a copper salt followed by drying and calcining to convert the salt to copper oxide or copper metal whereby a substantial portion of the sulfur sorbent activity and lifetime of the sorbent is restored.

Abstract: A composition of matter suitable for use as a sulfur sorbent. A fibrous silicate clay with randomly dispersed fibers is mixed with alumina and a copper-containing compound so that at least 20 weight percent of the finished sorbent is copper.

Abstract: Crystal formation of CoMoO.sub.4 and NiMoO.sub.4 is prevented in hydroprocessing catalysts containing both cobalt or nickel and molybdenum. The metals are comulled with the support material in the presence of a polyprotic acid.