METHOD OF HYDROCONVERSION IN THE STATIONARY LAYER OF RAW OIL AFTER SELECTION OF EASY FRACTIONS OR WITHOUT SELECTION BY USING INTERCHANGEABLE REACTORS FOR THE PREPARATION OF PRE-CLEANED SINUMET

摘要

1. The method of pre-treatment and hydroconversion in a stationary layer of hydrocarbon raw materials in the form of heavy crude oil containing at least 0.5 wt.% Asphaltenes and more than 10 wt.h / million metals (nickel and / or vanadium), to obtain a pre-refined synthetic crude oil, in which:! - hydrodemetallization of the feedstock is carried out in the hydrodemetallization section (HDM) containing at least 2 interchangeable reaction zones, each of which contains at least one hydrodemetallization catalyst; ! - then hydrocracking of at least a portion of at least partially demetallized effluent is carried out in a hydrocracking section (ICC) containing at least one hydrocracking catalyst in a stationary layer,! - then carry out hydrodesulfurization of at least part of the at least partially hydrocracked effluent in the hydrodesulfurization section containing at least one hydrodesulfurization catalyst! and in which the HDM and HDS sections operate in the presence of a catalyst system that contains at least two catalysts, one for HDM and the other for HDS, wherein the NSC step is performed between the HDM and HDS steps, wherein said HDM and HDS catalysts comprise at least one carrier consisting of a porous refractory oxide, at least one metal from group VIB and at least two metals from group VIII, one of which is the main promoter called VIII-1, and the other or others called co-promoter VIII-i / where i is from 2 d about 5, in these catalysts, elements of group VIII are present in amounts determined by the atomic ratio [VIII-1 / (VIII-1 + ... + VIII-i)],