METHOD OF PREPARING CATALYST FOR HYDROPURIFICATION OF PETROLEUM FRACTIONS

摘要

FIELD: chemistry.SUBSTANCE: in accordance with invention crushed aluminium oxide compound is introduced into aluminium hydroxide in presence of phosphoric and boric acids. As aluminium oxide compound used are aluminium chips or chips of alumonickelmolybdenum catalyst, which are introduced into aluminium hydroxide, preliminarily processed with boric acid. Phosphoric acid is introduced into preliminarily evaporated mixture of aluminium hydroxide and chips of aluminium oxide or alumonickelmolybdenum catalyst. Carrier granules are formed, dried and annealed. Carrier is empregnated with solution of molybdenum and cobalt salts. Aluminium oxide or alumonickelmolybdenum catalyst is taken with particle size 20-100 mcm. Alumonickelmolybdenum catalyst is added in quantity from 1.5 to less than 5.0% of aluminium hydroxide weight.EFFECT: possibility to increase degree of vacuum gasoil desulfurisation and increased degree of removal of coke-forming substances.4 cl, 9 ex