Process and apparatus for integrating slurry hydrocracking and deasphalting

摘要

Solvent deasphalting (SDA) is used to prepare a heavy hydrocarbon feed for further upgrading. An overhead deasphalted oil (DAO) stream is prepared for catalytic upgrading and an asphaltene stream is prepared for slurry hydrocracking (SHC). SHC product can be further deasphalted and the DAO can be separated from solvent in an upstream extraction column.

主权项

1. A process for converting heavy hydrocarbons to lighter hydrocarbons comprising:
a) deasphalting a heavy hydrocarbon feed stream to extract a DAO stream containing a greater concentration of saturated compounds than in the feed stream and provide an asphaltene stream containing a greater concentration of aromatic compounds than in the feed stream; b) catalytically upgrading at least a portion of the DAO stream by either hydrocracking the DAO stream with a hydrocracking catalyst having a cracking base or fluid catalytic cracking (FCC), in the presence of a catalyst to produce a catalytically upgraded product; c) slurry hydrocracking at least a portion of the asphaltene stream in the presence of hydrogen over a slurried catalyst to produce a slurry hydrocracked product; and d) recovering a product stream from said slurry hydrocracked product and deasphalting said product stream.