Patent ID: 11939542
Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for producing chemicals or polymers from plastic waste, the process comprising:
fractionating a 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;
hydrotreating the medium hydrocarbon stream to desulfurize the medium hydrocarbon stream to produce a hydrotreated hydrocarbon stream comprising hydrotreated C6-C8 hydrocarbons;
catalytically reforming the hydrotreated C6-C8 hydrocarbons over a zeolitic reforming catalyst comprising platinum on a bound zeolite support to produce a first circular aromatic-rich stream;
cracking the heavy hydrocarbon stream to generate a first cracked stream comprising C6 or higher circular hydrocarbons and a second cracked stream comprising C5 or lower circular hydrocarbons; and
steam cracking the first cracked stream to produce a circular olefin stream.