2010•JOURNAL OF CHEMICAL ENGINEERING OF JAPANRequires access

Chemical Recycling Process of Poly(Ethylene Terephthalate) in High-Temperature Liquid Water

Osamu Sato, Yoshio Masuda, Norihito Hiyoshi, Aritomo Yamaguchi, Masayuki Shirai

Abstract

The depolymerization behavior of poly(ethylene terephthalate) (PET) to terephthalic acid (TPA) and ethylene glycol (EG) in high-temperature liquid water is examined in a batch reactor. PET is completely depolymerized in water for 10 min at 573 K. The total energy to obtain TPA and EG from a continuous PET depolymerization process with high-temperature liquid water is estimated.

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Key concepts: Depolymerization, Terephthalic acid, Ethylene glycol, Ethylene, Materials science, Poly ethylene, Chemistry, Polymer chemistry