Patent ID: 7470357
Filing Date: 2008-12-30
Classification: C10G

Abstract:
1. An integrated process for the upgrading of a vacuum gas oil feedstock and a light cycle oil feedstock which process comprises: (a) reacting a hydrocarbonaceous feedstock comprising vacuum gas oil in a hydrodesulfurization reaction zone to produce a hydrocarbonaceous stream having a reduced concentration of sulfur; (b) reacting a hydrocarbonaceous feedstock comprising light cycle oil in a hydrocracking reaction zone to produce a hydrocarbonaceous stream comprising diesel boiling range hydrocarbons; (c) separating the hydrocarbonaceous stream having a reduced concentration of sulfur from step (a) and the hydrocarbonaceous stream comprising diesel boiling range hydrocarbons from step (b) in a separation zone to provide a light diesel stream and a hydrocarbonaceous stream having a reduced concentration of sulfur; (d) recycling at least a portion of the light diesel stream to the hydrocracking reaction zone in step (b); and (e) recovering a hydrocarbonaceous steam comprising diesel.