Patent ID: 8696887
Filing Date: 2014-04-15
Classification: B01J,C10G

Abstract:
1. A catalytic conversion process, which comprises catalytic cracking reaction of a hydrocarbon feedstock by contacting the feedstock with a medium pore size zeolite-enriched catalyst in a reactor to obtain reaction products, characterized in that the reaction temperature, weight hourly space velocity and catalyst/feedstock ratio by weight are sufficient to achieve a yield of fluid catalytic cracking gas oil between 12% and 60% by weight of said feedstock, wherein said weight hourly space velocity is between 25 h −1 and 100 h −1 , said reaction temperature is between 450° C. and 600° C., and said catalyst/feedstock ratio by weight is between 1 and 30, wherein the initial boiling point of fluid catalytic cracking gas oil is not less than 260° C., and the hydrogen content of fluid catalytic cracking gas oil is not less than 10.5% by weight, wherein said catalyst comprises zeolite 1˜50% by weight, inorganic oxide 5˜99% by weight, and clay 0˜70% by weight of the total weight of the catalyst respectively, wherein said zeolite comprises a medium pore size zeolite selected from ZSM series zeolites, ZRP zeolites and a combination thereof and optionally large pore size zeolite, selected from Y series zeolites; said medium pore size zeolite, accounting for 51˜100% of the total weight of the zeolite and said large pore size zeolite, accounting for 0˜49% of the total weight of the zeolite.