Steven De Meester
Professor at Ghent University
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Positions (3)
Articles (20)
Plastic recycling stripped naked – from circular product to circular industry with recycling cascade
This perspective combines various expertise to develop and analyse the concept of technology cascade for recycling waste plastics with the goal of displacing as much fossil crude oil as possible. It thereby presents archetype recycling technologies with their strengths and weaknesses. It then combines them in various cascades to process a representative plastic mix, and determines how much (fossil) naphtha could be displaced and at which energy consumption. The cascades rely on a limited number of parameters that are fully reported in supplementary information and that were used in a simple and transparent spreadsheet model. The calculated results bust several common myths in plastic recycling, e. g. by prioritizing here recycled volume over recycling efficiency, and prioritizing circular industry over circular products . It unravels the energy cost of solvent‐based recycling processes, shows the key role of gasification and the possibility to displace up to 70 % of the fossil feedstock with recycled carbon, a recycling rate that compares well with that aluminium, steel or paper. It suggests that deeper naphtha displacement would require exorbitant amount of energy. It therefore argues for the need to complement recycling with the use of renewable carbon, e. g. based on biomass, to fully defossilise the plastic industry.
Year:
2024
Collaborators (13)
Rudinei Fiorio
University of Maastricht
Ezra Bar-Ziv
Michigan Technological University
Anders Damgaard
Dr. at Technical University of Denmark
Technical University of Denmark
Katleen Raes
Ghent University
Dimitris Achilias
Professor
Aristotle University of Thessaloniki
Angeliki Lemonidou
Professor -Director of Petrochemical Technology Laboratory
Aristotle University of Thessaloniki
Thomas Fruergaard Astrup
Technical University of Denmark
Sergei Gusev
Ghent University
Kim Ragaert
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Marcel C. P. van Eijk
University of Maastricht
Diego Vazquez-Brust
Academic, Associate Dean, Associate Dean (Research and Innovation)
University of Portsmouth
regina frei
Associate Professor
University of Southampton
Jeroen Lauwaert
Professor at Ghent University
Ghent University

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