1results about How to "High Hydrodesulfurization" patented technology

The application discloses a kind of hydroprocessing catalyst and its preparation method and application.The method comprises the following steps: the alumina-based carrier is oversaturated and impregnated in the impregnation solution containing dopamine, protective agent and hydrogenation active metal, the pH value of system is adjusted, so that dopamine is self-polymerized on the pore channel surface of alumina-based carrier, then washed, dried, pre-carbon deposition, calcination, to obtain a hydroprocessing catalyst.The hydrogenation catalyst prepared by the method of the application is obviously improved in desulfurization and denitrification activity and stability.