Knowledge Agora

Title	Assessment of PET Depolymerization Processes for Circular Economy. 1. Thermodynamics, Chemistry, Purification, and Process Design
ID_Doc	27476
Authors	McNeeley, A; Liu, YA
Title	Assessment of PET Depolymerization Processes for Circular Economy. 1. Thermodynamics, Chemistry, Purification, and Process Design
Year	2024
Published	Industrial & Engineering Chemistry Research, 63.0, 8
Abstract	Poly(ethylene terephthalate) (PET) is the most widely produced thermoplastic and is used in drink bottles, packaging, and textiles. Chemical depolymerization represents a way to recycle PET that is robust to the low purity and quality of some waste PET sources. This work investigates the three primary routes to depolymerize PET into feedstocks used to produce the PET polymer: methanolysis, glycolysis, and hydrolysis. This work is unique in providing a thorough review of the depolymerization thermodynamics, chemistry, purification strategies, and design of PET depolymerization processes from an industrial perspective. This work provides detailed descriptions of different variants of PET depolymerization processes. We summarize available data necessary to design a PET depolymerization process and indicate where gaps in data exist. We demonstrate the importance of separation and purification sections of the process, which are rarely addressed in academic literature. We also demonstrate different designs and strategies that industrial technologies employ to address challenges.
PDF

Similar Articles

ID	Score	Article
22466		McNeeley, A; Liu, YA Assessment of PET Depolymerization Processes for Circular Economy. 2. Process Design Options and Process Modeling Evaluation for Methanolysis, Glycolysis, and Hydrolysis(2024)Industrial & Engineering Chemistry Research, 63.0, 8
12478		Anglou, E; Ganesan, A; Golabek, KM; Chang, YC; Fu, Q; Bradley, W; Jones, CW; Sievers, C; Nair, S; Boukouvala, F Process development and techno-economic analysis for mechanochemical recycling of poly(ethylene terephthalate)(2024)
23856		Jeya, G; Dhanalakshmi, R; Anbarasu, M; Vinitha, V; Sivamurugan, V A short review on latest developments in catalytic depolymerization of Poly (ethylene terephathalate) wastes(2022)Journal Of The Indian Chemical Society, 99, 1
24389		Biermann, L; Brepohl, E; Eichert, C; Paschetag, M; Watts, M; Scholl, S Development of a continuous PET depolymerization process as a basis for a back-to-monomer recycling method(2021)Green Processing And Synthesis, 10, 1
12968		Patel, A; Chang, AC; Perry, S; Soong, YHV; Ayafor, C; Wong, HW; Xie, DM; Sobkowicz, MJ Melt Processing Pretreatment Effects on Enzymatic Depolymerization of Poly(ethylene terephthalate)(2022)Acs Sustainable Chemistry & Engineering, 10.0, 41
19569		Cao, F; Wang, LY; Zheng, RR; Guo, LY; Chen, YM; Qian, X Research and progress of chemical depolymerization of waste PET and high-value application of its depolymerization products(2022)Rsc Advances, 12.0, 49
28305		Enache, AC; Grecu, I; Samoila, P Polyethylene Terephthalate (PET) Recycled by Catalytic Glycolysis: A Bridge toward Circular Economy Principles(2024)Materials, 17.0, 12
26988		Iturrondobeitia, M; Alonso, L; Lizundia, E Prospective life cycle assessment of poly (ethylene terephthalate) upcycling via chemoselective depolymerization(2023)
6476		Brivio, L; Tollini, F PET recycling: Review of the current available technologies and industrial perspectives(2022)
17139		Unruean, P; Padungros, P; Nomura, K; Kitiyanan, B Efficient chemical depolymerization of polyethylene terephthalate via transesterification with ethanol using CaO catalyst(2024)Journal Of Material Cycles And Waste Management, 26, 2