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IMPROVED METHOD OF DEEP HYDROCONVERSION USING EXTRACTION OF AROMATICS AND RESINS WITH VALORIZATION OF EXTRACT TO HYDROCONVERSION AND REFINEMENT TO DOWNSTREAM UNITS.
IMPROVED METHOD OF DEEP HYDROCONVERSION USING EXTRACTION OF AROMATICS AND RESINS WITH VALORIZATION OF EXTRACT TO HYDROCONVERSION AND REFINEMENT TO DOWNSTREAM UNITS.
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机译:通过萃取芳族化合物和树脂,对萃取物进行水转化和精制到下游单位进行精制的改进的深水转化方法。
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摘要
The invention relates to a method for a deep hydroconversion process using an extraction of aromatics and resins, with upgrading of the hydroconversion extract and raffinate in downstream units. The method includes the following steps: a) ebullated bed hydroconversion of a feed in the presence of hydrogen during hydroconversion; b) atmospheric fractionation of at least a hydroconverted effluent obtained from the step a) to produce a fraction containing a gasoline fraction and a gas fraction and atmospheric residues; c) vacuum fractionation of at least a portion of the atmospheric residues obtained from the step b) to obtain a vacuum gas oil fraction and an unconverted vacuum residue fraction; d) deasphalting of at least a portion of the unconverted vacuum residue fraction obtained from thestep c); and e) liquid/liquid extraction on a hydrocarbon fraction of depleted asphaltenes to produce an extract enriched in aromatics and resins and an extract depleted in aromatics and resins, at least a portion of the extract sent to an inlet of the hydroconversion as an aromatic diluent.
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