Process And Installation For Conversion Of Heavy Petroleum Fractions In A Boiling Bed With Integrated Production Of Middle Distillates With A Very Low Sulfur Content

摘要

Disclosed are a process and an installation for treatment of a heavy petroleum feedstock, of which at least 80% by weight has a boiling point of greater than 340° C., wherein the process includes(a) hydroconversion in a boiling-bed reactor operating with a rising flow of liquid producing a hydroconversion effluent;(b) separation of hydroconversion effluent into a gas containing hydrogen and H₂S, a fraction comprising gas oil, and a naphtha fraction;c) hydrotreatment, by contact with at least one catalyst, of at least said fraction comprising gas oil, producing a hydrotreatment effluent; andd) separation of hydrotreatment effluent into a gas containing hydrogen and at least one gas oil fraction having a sulfur content of less than 50 ppm,wherein the hydrogen supply for the hydroconversion and hydrotreatment is delivered by a single compression system.