CATALYST FOR HYDROGENATION TREATING, AND METHOD FOR HYDROGENATION TREATING HYDROCARBON OIL BY USING SAME

摘要

PROBLEM TO BE SOLVED: To provide both high desulfurization activity and high denitrification activity by specifying the weight proportions of boria and silica in a carrier and satisfying specified relation formulae. SOLUTION: The catalyst has a boria-silica-alumina carrier based on silica- alumina and contg. boria. The content of silica as SiO2 and the content of boria as B2 O3 are 2-40 wt.% and 0.1-10 wt.%, respectively, based on the total weight of the carrier. The carrier has a specified pare structure and satisfies the formulae PV(30-100) /PV(0-300) >=0.5 and PV(150-300) /PV(0-300) <=0.4 measured by the nitrogen adsorption method. In the formulae, PV(n-m) is pore volume occupied by pores having n to mÅpore diameter. The ratio of the volume of pores of 0-300Ådiameter measured by the nitrogen adsorption method to the volume of pores of >=40Ådiameter measured by the mercury penetration method is >=0.7. The carrier has >=200 m<2> /g specific surface area. When the catalyst is used, hydrocarbon oil such as vacuum light oil or cracked light oil can be hydrogenation treated at a high desulfurization rate and a high denitrification rate.