Research of Kinetic Features of Hydrodesulfurization, Hydrodenitrogenation, and Hydrogenation of Heavy Petroleum Compounds on Sulphide Ni₆PMo_<i>n</i>W_{(12 – <i>n</i>)}/Al₂O₃ Hydrotreating Catalysts

Abstract

Kinetic studies of hydrodesulfurization and hydrodenitrogenation reactions were carried out, as well as a comparison of the hydrogenating activity of the synthesized Ni6PMonW(12 – n)/Al2O3 catalysts and an industrial reference catalyst in the process of hydrotreating of heavy mixed oil feedstock. As it was shown, the HDS reaction is described by a pseudosecond order equation, while the HDN reaction is described by a pseudofirst order. The obtained hydrogenates meet the requirements for the quality of feedstock of catalytic cracking plants in terms of coking capacity, sulfur and nitrogen content.