METHOD OF PREPARING A DIESEL FUEL HYDROFINING CATALYST Russian patent published in 2020 - IPC B01J21/00 B01J21/02 B01J21/12 B01J23/882 C10G45/04 

FIELD: chemistry; technological processes.

SUBSTANCE: present invention relates to a method of preparing a hydrotreating catalyst for diesel fuel, characterized in that the catalyst is prepared by impregnating a support which contains, wt%: silicon dioxide SiO₂, which is an amorphous phase and having a particle size of 3–20 nm – 2.0–20.0, aluminum borate Al₃BO₆ with a norbergite structure – 5.0–25.0, γ-Al₂O₃ – rest; aqueous solution of complex compounds [Co(H₂O)₂(C₆H₅O₇)]₂[Mo₄O₁₁(C₆H₅O₇)₂] and Co₂[H₂P₂Mo₅O₂₃] followed by drying, wherein concentrations of components of solution provide a catalyst which includes, wt%: [Co(H₂O)₂(C₆H₅O₇)]₂[Mo₄O₁₁(C₆H₅O₇)₂] – 7.7–32.0; Co₂[H₂P₂Mo₅O₂₃] – 11.1–29.0; carrier – balance; followed by sulphurisation of catalyst, wherein catalyst after sulphidation using known techniques comprises, wt.%: Mo – 10.0–16.0; Co – 2.7–4.5; P – 0.8–1.8; S – 6.7–10.8; carrier – balance.

EFFECT: technical result of present invention is obtaining a catalyst having maximum activity in target reactions occurring during hydrofining of mixed diesel fuel containing distillates of secondary oil refining processes.

5 cl, 2 dwg, 1 tbl, 7 ex