One kind of heavy oil hydrotreating catalyst preparation and use thereof

One kind of heavy oil hydroprocessing catalyst and its preparation and use, the catalyst comprising a carrier and a hydrogenation active metal component supported on the support, wherein the support comprises alumina and an alkaline earth metal component, characterized by mercury porosimetry in a press the support pore volume 0.95 to 1.2 ml / g, a specific surface area of ​​50 to 300 m 2 / g, the carrier having a diameter of 300-500nm diameter of 10-30nm and a bimodal pore distribution, wherein the diameter 10-30nm pore volume of the pores is 55-80% of the total pore volume of pores having a diameter of 300-500nm total pore volume of 10-35% of the pore volume, the hydrogenation activity of at least one metal component selected from group VIB metal component and at least one group VB metal component, calculated as the oxide and based on the catalyst, the content of the group VIB metal component is 0.2 to 15 wt.%, of group VB metal component an amount of 0.2 to 12% by weight of. Compared with the prior art to provide a catalyst, the present invention provides a hydrogenation catalyst demetallization, deasphalted activity was significantly improved.