Return to Japanese Patent Table of Contents JP06198182 Abstract PURPOSE: To provide a catalyst used in hydroconverting treatment, particularly a catalyst containing nickel as a catalytically active component. CONSTITUTION: A catalyst used in hydroconverting treatment comprises nickel 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 nickel compound in the presence of a liquid, preferably under an acidic condition, to impregnate the carrier with nickel. The catalyst is generally used in hydroconverting treatment, particularly for preparation of intermediate fractions by hydroconversion of hydrocarbons formed by the Fischer-Tropsch method, and hydroisomerization of alkanes. |