CATALYST, METHOD OF ITS PREPARATION (VERSIONS) AND PROCESS OF HYDRODESULPHURISATION OF DIESEL FRACTIONS Russian patent published in 2009 - IPC B01J23/88 B01J23/83 C10G45/08 

FIELD: chemistry.

SUBSTANCE: catalysts are intended for deep hydropurification of Diesel fractions from sulphureous compounds and can be used in oil-refining and oil-chemical industry. Catalyst for process of Diesel fraction hydrodesulphurisation has following composition, wt %: molybdenum oxide MoO₃ 16.0-29.0, cobalt oxide CoO and/or nickel oxide - 3-8, and phosphorus - 0.1-0.5, uranium oxide 1-15, carrier - the remaining part, atomic ratio Mo/Co(Ni) and P/Mo within 1.8-2.6 and 0.08-0.15, respectively. Method of obtaining catalyst (versions) includes successive or simultaneous impregnation of oxide carrier with solution of uranyl nitrate or acetate and complex solution of salts of metals of VIII and VI groups of periodic system with further thermal processing in flow of air or nitrogen at temperature not higher than 240°C. Process of Diesel fraction hydrodesulphurization is carried out under the following conditions: partial hydrogen pressure 3.5 MPa, temperature 300-370°C, weight liquid consumption 2 hour^-1, volume ratio hydrogen/fuel 300-500 in presence of catalyst of said composition or obtained by invention methods.

EFFECT: deep purification of Diesel fractions, catalyst stability, its resistance to deactivation.

9 cl, 17 ex, 2 tbl