Systems and processes for processing pyrolysis oil

A system for producing chemicals or polymers from plastic waste, the system comprising:

• a feed line comprising a pyrolyzed plastics feed;
• a feed fractionator coupled to the feed line for separating the pyrolyzed plastics feed into a light hydrocarbon stream, a medium hydrocarbon stream, and a heavy hydrocarbon stream, wherein the light hydrocarbon stream comprises C5 or lower circular hydrocarbons, wherein the medium hydrocarbon stream comprises at least C6-C8 circular hydrocarbons, and wherein the heavy hydrocarbon stream comprises at least C13 or higher circular hydrocarbons;
• a hydrotreater fluidically coupled to the feed fractionator to receive the medium hydrocarbon stream and configured to desulfurize the medium hydrocarbon stream to produce a hydrotreated hydrocarbon stream comprising hydrotreated C6-C8 hydrocarbons;
• a catalytic reforming unit comprising a platinum-supporting zeolite catalyst, wherein the catalytic reforming unit is fluidically coupled to the hydrotreater to receive the hydrotreated C6-C8 hydrocarbons and produce a first circular aromatic-rich stream;
• a heavy oil cracker fluidically coupled to the feed fractionator to receive the heavy hydrocarbon stream and generate a first cracked stream comprising C6 or higher circular hydrocarbons and a second cracked stream comprising C5 or lower circular hydrocarbons;
• and
• a steam cracker fluidically coupled to the heavy oil cracker to receive the first cracked stream and produce a circular olefin stream.