CATALYST, PREPARATION METHOD THEREOF AND METHOD OF PRODUCING DIESEL FUEL FROM NATURAL RAW MATERIAL Russian patent published in 2011 - IPC B01J23/42 B01J23/44 B01J29/85 B01J37/02 B01J37/14 C10G3/00 C07C211/06 

FIELD: chemistry.

SUBSTANCE: described is a catalyst for producing diesel fuel from natural raw material based on crystalline silico aluminophosphate with a zeolite-like structure of the SAPO-31 type, which is modified with a group VIII metal, where degree of dispersion of the group VIII metal in the catalyst composition is higher than 14%. The catalyst is prepared by saturating the starting calcined material, crystalline silico aluminophosphate with a zeolite-like structure of the SAPO-31 type with a solution of a platinum and/or palladium compound such that the amount of metal in the end product is not more than 10.0 wt %, followed by drying and oxidative treatment at temperature not higher than 500°C, while raising temperature in the furnace at a rate not higher than 20°C. The process of producing diesel fuel takes place at temperature not higher than 400°C, pressure not higher than 10 MPa, mass rate of feeding the raw material not higher than 10 h^-1, volume ratio of hydrogen to material not higher than 5000, in the presence of the disclosed catalyst in a single step.

EFFECT: high stability of the action of the catalyst for single-step hydrotreatment of natural raw material.

6 cl, 1 tbl, 8 ex