Patent ID: 6153086
Filing Date: 2000-11-28
Classification: C10G

Abstract:
A hydroprocessing process which includes two liquid and one vapor reaction stages and which comprises the steps of:(a) reacting a feed comprising a hydrocarbonaceous liquid with hydrogen in a cocurrent flow reaction stage in the presence of a hydroprocessing catalyst to form a first stage effluent comprising a mixture of a partially hydroprocessed hydrocarbonaceous liquid and vapor;(b) separating said liquid and vapor effluent;(c) reacting said first stage liquid effluent with hydrogen in the presence of a hydroprocessing catalyst in a countercurrent flow hydroprocessing reaction stage to produce a hydroprocessed hydrocarbonaceous product liquid effluent at the bottom of said stage and a hydrocarbonaceous vapor effluent at the top, and(d) combining both of said vapor effluents and then reacting them with hydrogen in the presence of a hydroprocessing catalyst in a vapor hydroprocessing reaction stage to produce a hydroprocessed hydrocarbonaceous vapor, wherein said vapor stage reaction hydrogen is provided by unreacted hydrogen in at least one or both of said countercurrent or cocurrent stage vapor effluents,(e) condensing at least a portion of said hydroprocessed hydrocarbonaceous vapor produced in said vapor hydroprocessing stage to liquid, and then(f) forming a blend consisting essentially of at least a portion of said condensed hydroprocessed hydrocarbonaceous vapor and said hydroprocessed product liquid.