| 摘要 |
The invention relates to a process for conversion of a heavy feedstock that has a boiling point of more than 340° C. for at least 80% by weight of the feedstock, a Conradson carbon content of at least 5% by weight, an asphaltene content of at least 1% by weight, a sulfur content of at least 0.5% by weight, and a metal content of at least 20 ppm, process in which: Said feedstock is subjected to deasphalting, and a deasphalted oil that contains less than 1% by weight of asphaltenes is obtained At least a portion of said oil, and preferably all of it, is subjected directly to hydroconversion in the presence of a supported or dispersed catalyst, and the effluent that is obtained is distilled to separate a residue At least part if not all of said residue is recycled with the feedstock to deasphalting.
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