This invention relates to a novel integrated method for economically
processing vacuum residue from heavy crude oils. This is accomplished by
utilizing a solvent deasphalter (SDA) in the first step of the process
with a C.sub.3/C.sub.4/C.sub.5 solvent such that the DAO product can
thereafter be processed in a classic fixed-bed hydrotreater or
hydrocracker. The SDA feed also includes recycled stripper bottoms
containing unconverted residue/asphaltenes from a downstream steam
stripper unit.The asphaltenes from the SDA are sent to an ebullated-bed
reactor for conversion of the residue and asphaltenes. Residue conversion
in the range of 60-80% is achieved and asphaltene conversion is in the
range of 50-70%. The overall residue conversion, with the DAO product
considered non-residue, is in the range of 80 W %-90 W % and
significantly higher than could be achieved without utilizing the present
invention.