Return to Japanese Patent Table of Contents JP06198180 Abstract PURPOSE: To provide a catalyst used in hydroconversion, particularly a catalyst contg. palladium as a catalytically active component. CONSTITUTION: A catalyst used in hydroconversion comprises palladium supported on a silica-alumina carrier, which carrier has been prepared from an amorphous silica-alumina starting material having a pore volume of at least 1.0 ml/g. A process for preparing the catalyst comprises preparing the carrier from the amorphous silica-alumina starting material having a pore volume of at least 1.0 ml/g and bringing the carrier so-formed into contact with a palladium compound in the presence of a liquid, preferably under an acidic condition, to impregnate the carrier with palladium. The catalyst is generally used in hydroconversion, particularly for preparation of intermediate fractions by hydroconversion of hydrocarbons formed by the Fischer-Tropsch method, and hydroisomerization of alkanes. |