Abstract: A high activity hydro-upgrading catalyst was prepared using modified zeolite and alumina as carrier and loading W, Ni metal components by impregnation method. The catalyst had the characteristics of large pore volume, high specific surface area, concentrated pore size distribution and uniform metals dispersion. Test results of catalytic performance evaluation showed that during the hydroupgrading of FCC diesel fraction, said catalyst exhibited good desulfurization and denitrogenation activity and stability, the cetane number of the treated FCC diesel fraction increased significantly.

Key words: catalyst, hydrodesulfurization, cetane number, catalytic cracking, diesel fuel