公开(公告)号：WO2021151071A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014896

申请日：2021-01-25

Applicant: PREMIRR PLASTICS INC.

Inventor： PARROTT, Matthew Craig ,  LUFT, James Christopher ,  SHUPING, Donald B. ,  MATTIACE, Michael Dean

IPC: C08J11/24 ,  C08J11/16 ,  C08L67/00 ,  C08J2367/00

Abstract: A continuous flow process and system for depolymerizing plastic. A heterogeneous mixture of plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate just high enough to maintain a particle speed great enough to keep the plastic particles in suspension. The temperature of the heterogeneous mixture is raised in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied reaction product. The homogeneous solution is cooled to solidify and precipitate a solid reaction product. The solid reaction product is separated from the solvent to be recycled. The solvent is recirculated to be reused as a constituent of the heterogeneous mixture.