CATALYST FOR HYDROFINING OF GASOLINE FROM CATALYTIC CRACKING

摘要

The invention relates to the field of catalysis, and specifically to catalysts for hydrofining gasoline from catalytic cracking so as to produce a product - a component of commercial gasoline - having a low sulfur content and with a minimal decrease in octane number, and can be used in the petroleum-refining industry. A catalyst is described comprising cobalt, molybdenum and a substrate that contains: 17.4-27.4 wt% [Co(H₂O)₂(C₆H₅O₇)]₂[M_o4O₁₁(C₆H₅O₇)₂], with the remainder being the substrate; wherein the substrate contains 5.0-25.0 wt% aluminum borate Al₃BO₆ having the norbergite structure, no more than 0.03 wt% sodium; 30-50 wt% amorphous aluminosilicate, and the remainder being γ-Al₂O₃. The amorphous aluminosilicate included in the catalyst contains silicon and aluminum in a weight ratio of 0.2 to 0.3. The technical result is increased hydrodesulfurization activity of the catalyst in the hydrofining of gasolines from catalytic cracking, as well as increased selectivity of the catalyst expressed as a decrease in the degree of hydrogenation of olefinic hydrocarbons and a decrease in the drop in octane number of the gasoline from catalytic cracking when hydrofining is performed.