▎ 摘　　要

NOVELTY - Diesel hydrofining catalyst comprises 2-6% active component nickel oxide (NiO), 15-30% molybdenum trioxide and carrier aluminum oxide- Engelhard titanosilicate 10-titanium dioxide-lanthanum oxide (Al2O3-(ETS-10)-TiO2-La2O3)-graphene composite oxide, where catalyst has a specific surface area of 250-500 m2/g and pore volume of 0.6-0.8 ml/g. USE - The diesel hydrofining catalyst is useful for hydrotreating diesel (claimed). ADVANTAGE - The diesel hydrofining catalyst has a specific pore size, large pore volume and high diesel hydrodesulfurization activity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing catalyst, comprising (i) mixing microporous titanium silicon molecular sieve ETS-10 with ammonium salt solution, heating to 70-95 degrees C, stirring for 0.5-3 hours, separating molecular sieve by centrifugation, freeze-drying and roasting at 400-500 degrees C for 2-6 hours, (ii) adding calcined molecular sieve to hydrothermal device, controlling temperature at 300-600 degrees C for 0.5-3 hours, calcining at 400-500 degrees C for 2-6 hours after lyophilization to obtain mesoporous titanium silicon molecular sieve, (iii) adding titanium-containing compound, lanthanum containing compound and graphene to mesoporous titanium-silicon molecular sieve, mixing and adding extrusion agent and adhesive, mixing again, extruding, lyophilizing and calcining to obtain carrier, and (iv) preparing impregnation solution with compound containing an active metal, soaking obtained carrier in an equal volume, freeze-drying and calcining; and (2) use method of catalyst, comprising vulcanizing and using for hydrotreating diesel fraction, reacting at 280-380 degrees C with hydrogen partial pressure of 6-9 MPa, where hydrogen and oil ratio is 300:1-600:1 and volumetric space velocity is 0.5-3 h-1.