Diesel hydrogenation catalyst

The hydrofining catalyst has a new modified alumina with larger pore volume and specific surface area of XDH-7 as the carrier, and the modified carrier has a suitable surface acidity, which can promote the ring opening of cyclic organic compounds and the hydrogenation denitrification reaction and increase the cetane number of diesel oil. XDH-7 has large pore volume, specific surface area and reasonable pore structure, which can provide more active centers. Therefore, XDH-7 has better capability of deep hydrodesulfurization of diesel oil, better stability and better adaptability to raw materials. XDH-7 can meet the needs of processing all kinds of sulfur-containing diesel oil and mixed hydrofining.