CATALYST FOR HYDROISODEWAXING OF MIDDLE-DISTILLATE HYDROCARBON FRACTIONS Russian patent published in 2017 - IPC B01J29/48 B01J29/26 B01J29/18 B01J29/40 B01J23/883 C10G45/08 C10G45/12 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil processing, in particular to development of catalyst hydroisodewaxing of middle-distillate hydrocarbon fractions, namely mixed feedstock of petroleum and vegetable origin to obtain base componenets of aviation kerosene and diesel fuels for arctic conditions. The catalyst comprises a mixture of high-silica zeolites, hydrogenating transition metal, a promoting agent and a binder, while the mixture of high-silica zeolites contains bicomponent zeolite mixture: medium-porous zeolite of CVN structure, pentasil and wide-porous zeolite mordenite or β zeolite at the following weight ratio of CVN: (mordenite or zeolite β), respectively (1-6):1, the hydrogenating transition metals are oxides of nickel and molybdenum, and the promoter - mixture of boron and lanthanum oxides, the binder - a mixture of amorphous aluminum silicate and aluminum γ-oxide in the following ratio, wt %: a mixture of high-silica zeolites - 40.0-55.0, hydrogenated transition metals - 7.5-15, promoter - 2.0-4.0, amorphous silica - 10.0-15.0, aluminum γ-oxide - up to 100.

EFFECT: invented catalyst has high activity and selectivity for hydroisodewaxing and a middle hydrocarbon fraction, which is used as hydrotreated mixed fuel consisting of a synthetic oil obtained by the Fischer-Tropsch synthesis, and straight-run diesel fractions.

4 cl, 3 tbl