公开(公告)号：US20230227731A1

公开(公告)日：2023-07-20

申请号：US18153378

申请日：2023-01-12

Applicant: LUMMUS TECHNOLOGY LLC

Inventor： Sudipto Chakraborty ,  Liang Chen ,  Te-Chun Chu ,  Manoj Som ,  David Lee Guymon ,  Daniel T. Fernald ,  Richard John Jibb ,  Ron Herbanek

IPC: C10B57/02 ,  C10B53/07 ,  C10B57/14 ,  C10C3/00 ,  C10C3/10 ,  C10C3/12

CPC classification number: C10B57/02 ,  C10B53/07 ,  C10B57/14 ,  C10C3/002 ,  C10C3/10 ,  C10C3/12

Abstract: Systems and processes for pyrolyzing waste plastics, including, in one or more heating stages, heating a waste plastic from an initial temperature to a peak pyrolysis temperature, and, in a final pyrolysis stage, providing heat input sufficient to maintain a temperature of the waste plastic at a pyrolysis reaction temperature less than the peak pyrolysis temperature and maintaining the waste plastic at the pyrolysis reaction temperature for a time period to convert a portion of the waste plastic to a pyrolyzed product and a pitch. The process further includes recovering the pyrolyzed product and recovering the pitch.