Process for upgradation of cracked residual hydrocarbons

A process for upgradation of cracked residual hydrocarbons, wherein the process comprises the steps of:

• i. hydrocracking a feed stream in a primary conversion unit to obtain a mix of a hydrocracked residual hydrocarbon stream and a lighter hydrocarbon stream, wherein the feed stream is a vacuum residue stream;
• ii. sending the mix of the hydrocracked residual hydrocarbon and the lighter hydrocarbon stream into a fractionator to recover a lighter hydrocarbon fraction and a hydrocracked vacuum resid fraction;
• iii. mixing the hydrocracked vacuum resid fraction with a diluent in the presence of hydrogen and a catalyst to form a mixed feed stream, wherein the catalyst is dispersed in the mixed feed stream;
• iv. processing the mixed feed stream in a secondary conversion unit to obtain a stream of liquid effluents and vapour effluents, wherein the secondary conversion unit is a slurry hydrocracking reactor;
• v. sending the stream of liquid effluents and vapor effluents into a separator to separate liquid effluents from vapour effluents;
• vi. sending the liquid effluents to a fractionation column to separate a lighter distillate, a middle distillate, a vacuum gas oil an unconverted slurry hydrocracked pitch residue and a slurry hydrocracked bottom pitch, wherein the middle distillates are kerosene and diesel;
• vii. recycling the unconverted slurry hydrocracked pitch residue to the slurry hydrocracking reactor, wherein the unconverted slurry hydrocracked pitch residue comprises the catalyst.