METHOD FOR MAKING A CATALYST FOR HYDROTREATING CATALYTIC CRACKING FEEDSTOCK Russian patent published in 2021 - IPC B01J37/02 B01J31/00 B01J21/12 B01J21/00 C10G45/04 

FIELD: catalyst production.

SUBSTANCE: invention relates to methods of producing catalysts. Disclosed is a method for preparing a catalyst for hydrotreating catalytic cracking feedstock containing compounds of nickel, molybdenum, phosphorus and a carrying agent. The method is characterized by the fact that the catalyst is prepared by impregnating the carrying agent in terms of moisture capacity with an aqueous solution simultaneously containing a mixture of complex compounds [Ni(Н₂О)₂]₂[Mo₄O₁₁(С₆Н₅О₇)₂], Ni₂[H₂P₂Mo₅O₂₃] and H₄[Mo₄(C₆H₅O₇)₂O₁₁]. Impregnation is carried out at a temperature of 25-70 °C for 15-60 minutes with periodic stirring followed by drying and sulfiding, while using the carrying agent, which contains, wt.%: in terms of oxides of non-metals SiO₂ – 0.1-20 and B₂O₃ – 0-10; sodium - no more than 0.03; y - and x -Al₂O_{3 -} the rest, the ratio of low-temperature forms of aluminum oxide x -Al₂O₃ and y -Al₂O₃ in the carrying agent in wt% is (0-40) : (100-60), the resulting catalyst contains, wt%: [Ni(Н₂О)₂]₂[Mo₄O₁₁(С₆Н₅О₇)₂] – 1.7-6.6, Ni₂[H₂P₂Mo₅O₂₃] – 22.6-30.1 and H₄[Mo₄(C₆H₅O₇)₂O₁₁] – 3.1-6.6; the carrying agent is the rest; after sulfiding, the catalyst contains: Мо – 11.7-16.5; Ni – 3.0-4.4; S – 9.4-13.4; P – 1.5-1.9; the carrying agent is the rest.

EFFECT: disclosed is a catalyst showing increase in activity in hydrotreating of catalytic cracking feedstock.

3 cl, 1 tbl, 7 ex