Patent ID: 8691082

Claim:
A process to hydroprocess hydrocarbonaceous feedstock comprising: hydrotreating said hydrocarbonaceous feedstock with hydrogen in a first hydrotreating reaction zone with a hydrotreating catalyst at conditions effective to produce a first hydrotreated effluent; fractionating said first hydrotreated effluent that has not been hydrocracked in a hydrocracking reaction zone before fractionation on a first side of a dividing wall in a dividing wall fractionation column to provide a diesel stream recovered from a bottom of said dividing wall fractionation column; hydrotreating a feed diesel stream which is at least a portion of said diesel stream with hydrogen in a second hydrotreating reaction zone with hydrotreating catalyst to produce a second hydrotreated effluent; and fractionating said second hydrotreated effluent on a second side of said dividing wall in said dividing wall fractionation column to produce a hydrotreated diesel stream.