CATALYST AND METHOD FOR HYDROISOMERISATION OF DIESEL DISTILLATES USING SAID CATALYST Russian patent published in 2014 - IPC B01J29/42 B01J29/48 B01J29/10 B01J29/16 B01J21/04 B01J23/652 B01J27/185 B01J27/188 B01J21/02 C07C5/13 C10G35/95 

FIELD: chemistry.

SUBSTANCE: invention relates to oil refining, particularly catalysts for hydroisomerisation of oil stock. The disclosed catalyst includes a hydrogenating metal component on a support comprising zeolite and aluminium oxide. The hydrogenating metal component used is base metals Ni, Mo, W or mixtures thereof and noble metals Pd and Ir, and the zeolite is a mixture of medium-pore zeolite TSVN with a pentasil structure and a wide-pore ultrastable zeolite USY. Content of acidic sites in the disclosed catalyst is in the range of 400-600 mcmol/g. The catalyst further contains a boron oxide or phosphorus oxide promoter. The disclosed catalyst has the following ratio of components, wt %: base metals - 7-12, noble metals - 0.1-1.0; zeolite mixture - 60-70; promoter - 0.5-4.0; aluminium oxide - up to 100. The invention also relates to a method for hydroisomerisation of oil stock in the presence of said catalyst.

EFFECT: disclosed catalyst and method for isomerisation of oil stock using said catalyst enable to obtain high-quality winter and arctic grade diesel fuels with high output.

5 cl, 2 tbl, 4 ex