US 11,939,542 B1
Systems and processes for processing pyrolysis oil
Bruce D. Murray, Kingwood, TX (US); Scott G. Morrison, Kingwood, TX (US); Kenneth Fountain, Bilox, MS (US); Steven R. Horlacher, League City, TX (US); Vincent D. Mcgahee, Kemah, TX (US); Reza Khankal, Humble, TX (US); and David Dockter, Kingwood, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Sep. 11, 2023, as Appl. No. 18/464,570.
Application 18/464,570 is a division of application No. 18/054,169, filed on Nov. 10, 2022, granted, now 11,802,250.
Int. Cl. C10G 1/10 (2006.01); C10G 1/00 (2006.01); C10G 67/16 (2006.01); C10G 69/08 (2006.01); C10G 69/12 (2006.01); C10G 69/14 (2006.01)
CPC C10G 69/14 (2013.01) [C10G 1/002 (2013.01); C10G 1/10 (2013.01); C10G 67/16 (2013.01); C10G 69/08 (2013.01); C10G 69/126 (2013.01); C10G 2300/1003 (2013.01); C10G 2400/20 (2013.01); C10G 2400/30 (2013.01)] 19 Claims
 
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.