HYDROCRACKING-HYDROGENATION PROCESS

摘要

A cyclic hydrocracking-hydrogenating process comprising a gasoline-producing cycle, passing a mineral oil feedstock through a first and second catalyst contact zone to effect a substantial synthesis of gasoline; and in a middle distillate producing cycle, passing the feedstock through the first zone to effect a substantial synthesis to middle distillate and passing unconverted oil and middle distillate from the first contacting zone in the substantial absence of hydrogen sulfide through the second contacting zone to substantially hydrogenate without substantially hydrocracking and unconverted oil and middle distillate; the catalyst in the second contacting zone comprising a Group VIII noble metal hydrogenation component support on an active zeolitic cracking base.