CATALYST FOR HYDRO-SKIMMING VACUUM GAS OIL AND PREPARATION METHOD THEREOF (VERSIONS) Russian patent published in 2016 - IPC B01J32/00 B01J21/04 B01J21/12 B01J37/02 B01J37/08 B01J35/04 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of supports of a catalyst for hydro-skimming vacuum gas oil. According to a first version, catalyst support contains 30-80 wt% aluminium oxide in form of boehmite or pseudo-boehmite and 20-70 wt% aluminium oxide, obtained by preliminary treatment of aluminium hydroxide with 1-7 % nitric acid solution at temperature of solution 5-10 °C and dried by spraying in a stream of hot air at temperature of 190-210 °C to produce particles, 80 % of which have size less than 45 mcm, wherein support has pore volume of 0.54-0.70 cm³/g and coefficient of mechanical strength 2.6-3.5 kg/mm. Invention also relates to a second version of a catalyst support, wherein 27.3-49.6 wt% aluminium oxide and 2.7-31.4 wt% silicon oxide are contained in form of mesoporous aluminosilicate with weight ratio of SiO₂:Al₂O₃= 0.1:0.65, wherein support contains: aluminium oxide 68.6-97.3 wt%, silicon oxide 2.7-31.4 wt%, has pore volume of 0.57-1.02 cm³/g and coefficient of mechanical strength 2.7-4.0 kg/mm. Invention also relates to methods (versions) of making a catalyst for hydro-skimming vacuum gas oil.

EFFECT: technical result consists in improvement of mechanical strength and pore volume of support, sufficient for application by impregnation from 25 to 35 wt% active components of catalyst, which provides during hydro-skimming vacuum gas oil degree of conversion for sulphur of not less than 98 %, and nitrogen - not less than 80 %.

4 cl, 1 tbl, 6 ex