Integrated hsfcc processes for producing chemical intermediates from crude oil

An integrated process for upgrading a crude oil, the process comprising:

• processing a crude oil in a high severity fluidized catalytic cracking (HSFCC) system to produce an HSFCC effluent, wherein the HSFCC system comprises a feed separator, a first FCC unit, and a second FCC unit in parallel with the first FCC unit;
• separating the HSFCC effluent in a separation system to produce, a light products effluent, a mixed C4 effluent, a naphtha effluent, and a heavy effluent, where the light products effluent comprises hydrocarbon constituents of the HSFCC effluent having a boiling point temperature less than or equal to −20° C., the mixed C4 effluent comprises constituents of the HSFCC effluent having 4 carbon atoms, the naphtha effluent comprises constituents of the HSFCC effluent having boiling point temperatures of from 25° C. to 220° C., and the heavy effluent comprises constituents of the HSFCC effluent having boiling point temperatures greater than 220° C.;
• passing the light products effluent to an olefin separation system that separates the light products effluent to produce a C2-C3 olefin effluent and a light saturated hydrocarbon effluent, where the C2-C3 olefin effluent comprises ethylene, propylene, or both;
• subjecting the light saturated hydrocarbon effluent to steam cracking in a pyrolysis cracking system to produce a cracking reaction effluent comprising ethylene, propylene, or both;
• passing at least a portion of the mixed C4 effluent to a C4 processing system that processes the mixed C4 effluent to produce one or more of a saturated C4 stream and a C4 olefin stream;
• reforming the naphtha effluent in a naphtha reforming system to produce a reformate comprising a greater concentration of light aromatic compounds compared to the naphtha effluent, where the light aromatic compounds comprise benzene, toluene, xylenes, ethylbenzene, or combinations thereof;
• recovering benzene, toluene, xylenes, ethylbenzene, or combinations thereof from the reformate;
• and
• passing at least a portion of the heavy effluent to heavy oil processing system that processes the heavy effluent to produce a light cycle oil (LCO) and a heavy cycle oil (HCO).