Integrated selective hydrocracking and fluid catalytic cracking process

An integrated process for conversion of a feedstock to produce hydrocracked product and fluidized catalytically cracked product, the process comprising:

• a. separating, in an aromatic separation zone, a hydrocarbon feed and an unconverted bottoms recycle stream to an aromatic-lean fraction that contains labile organosulfur and/or organonitrogen compounds and an aromatic-rich fraction that contains sterically hindered refractory aromatic organosulfur compounds,
• wherein feed to the aromatic separation zone comprises the unconverted bottoms recycle stream and the hydrocarbon feed,
• wherein the hydrocarbon feed is selected from the group consisting of straight run gas oil, vacuum gas oil, deasphalted oil or demetalized oil obtained from a solvent deasphalting process, light coker or heavy coker gas oil obtained from a coker process gas oil obtained from a visbreaking process and a combination comprising two or more of the foregoing;
• b. passing the aromatic-rich fraction to a hydrocracking reaction zone operating at a hydrogen partial pressure of at least about 60 Kg/cm2 to convert at least a portion of refractory aromatic organosulfur and/or organonitrogen compounds and to produce a hydrocracked product stream and an unconverted bottoms effluent;
• c. recycling at least a portion of the unconverted bottoms effluent to the aromatic separation step as the unconverted bottoms recycle stream in step (a);
• d. passing the aromatic-lean fraction to a hydrotreating reaction zone operating at a pressure in the range of about 20.4 Kg/cm2 to about 61.2 Kg/cm2 to desulfurize at least a portion of aromatic-lean fraction and to produce a hydrotreated stream;
• and
• e. passing a fluid catalytic cracking feed to a fluid catalytic cracking reaction zone to produce cracked product, a light cycle oil stream and a heavy cycle oil stream, wherein the fluid catalytic cracking feed consists essentially of the hydrotreated stream or wherein the fluid catalytic cracking feed consists essentially of the hydrotreated stream in combination with a portion of the unconverted bottoms effluent.