CATALYST FOR HYDROGENATING HEAVY HYDROCARBON OIL AND HYDROGENATING METHOD TO USE THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a hydrogenation catalyst improved in microporosity without deteriorating the strength and excellent in activity stability, and to provide a hydrogenating method using the hydrogenation catalyst. SOLUTION: This hydrogenation catalyst, which has 20-35 nm average pore diameter, 9 N/mm or higher strength and 70-150 m2/g specific surface area, is obtained by depositing the metal of group VI in the periodical table on a zinc-containing alumina carrier containing zinc of 1-15 wt.% (based on the carrier) expressed in terms of zinc oxide in alumina. The zinc-containing alumina carrier after compacted is sintered at >=600 deg.C to have the characteristic peak at 2θ=55.5 deg. in the powder X-ray diffraction pattern. Heavy hydrocarbon oil is catalytically hydrogenated by using this catalyst at 300-500 deg.C under 3-20 MPa under the condition that the hydrogen/oil ratio is 400-3,000 m3/m3 and LHSV is 0.1-3 h-1.