Method for converting hydrocarbon feedstock comprising a shale oil by decontamination, hydroconversion in an ebullating bed, and fractionation by atmospheric distillation

摘要

Method and device for converting hydrocarbon feedstock comprising a shale oil, comprising a decontaminating step, a hydroconversion in an ebullating bed, a fractionation to give light, naphtha, gas-oil and heavier than gas-oil fractions, the naphtha and gas-oil fractions being hydrotreated, the fraction heavier than gas-oil being sent back to the decontaminating step. The method aims to maximize the yield of fuel bases.