Circularizing PET-G Multimaterials: Life Cycle Assessment and Techno-Economic Analysis.
Journal
ACS sustainable chemistry & engineering
ISSN: 2168-0485
Titre abrégé: ACS Sustain Chem Eng
Pays: United States
ID NLM: 101608852
Informations de publication
Date de publication:
23 Oct 2023
23 Oct 2023
Historique:
received:
02
07
2023
revised:
01
10
2023
medline:
27
10
2023
pubmed:
27
10
2023
entrez:
27
10
2023
Statut:
epublish
Résumé
The recycling of multimaterials such as payment or access cards poses significant challenges. Building on previous experimental work demonstrating the feasibility of chemically recyclable payment cards made from glycol-modified poly(ethylene terephthalate) (PET-G), we use life cycle assessment and techno-economic analysis to investigate two chemical recycling scenarios and evaluate their potential environmental and economic benefits. Recovering all components from the depolymerized products (Scenario 1) achieves substantial environmental benefits across most categories, reducing global warming by up to 67% compared to only recovering major components (Scenario 2). However, the environmental benefits in Scenario 1 incur 69% higher total annualized costs, causing its profitability to be dependent on a minimum selling price of £13.4/kg for cyclohexanedimethanol and less than a 10% discount rate. In contrast, Scenario 2 is less sensitive to discount rate variation and thus a lower risk and more economically feasible option, albeit less environmentally sustainable.
Identifiants
pubmed: 37886038
doi: 10.1021/acssuschemeng.3c04047
pmc: PMC10598876
doi:
Types de publication
Journal Article
Langues
eng
Pagination
15328-15337Informations de copyright
© 2023 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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