METHOD OF CATALYTICALLY REFINING THERMAL PROCESS PRODUCTS Russian patent published in 2000 - IPC

FIELD: petroleum processing. SUBSTANCE: gasoline from delayed coking plant preheated to 350-400 C is fed into different reactor zones of vacuum gas oil catalytic cracking plant in amounts 1 to 10% of the weight of raw material and combined material comes into contact with 50 to 100 vol % of catalyst to give, after subsequent isolation, high-octane gasoline. The same coking plant gasoline can also be combined with straight-run diesel fuel in amounts 1 to 20 vol % for subsequent hydrofining of combined material in contact with catalyst containing oxides of molybdenum, nickel, and aluminum plus 1.02-4.08 wt % of silicon-tungsten complex SiO₂•12WO₃ to give, after isolation, stable low-sulfur diesel fuel and refined gasoline fraction that serves as component of raw material for catalytic reforming plant. Gas oil from delayed coking plant is combined with straight-run diesel fuel in amounts 1 to 30 vol % for subsequent hydrofining of combined material in contact with above-defined catalyst to give, after isolation, stable low-sulfur diesel fuel. Or perhaps, preheated to 350-400 C, above-named gas oil is fed into different reactor zones of vacuum gas oil catalytic cracking plant in amounts 1 to 40% of the weight of raw material and combined material comes into contact with 70 to 100 vol % of catalyst to give, after subsequent isolation, high- octane gasoline. EFFECT: new ways for production of high-octane gasoline and low-sulfur diesel fuel. 2 cl, 2 tbl, 6 ex