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Varbanov, P.S., Chin, H.H., Jia, X., Sher, F. 
ORCID: 0000-0003-2890-5912 and Klemeš, J.J.,
2021.
Environmental impacts of plastic materials flow minimisation using data-driven pinch method.
Chemical Engineering Transactions, 88, pp. 967-972.
ISSN 1974-9791
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Abstract
Plastics recycling, as a subclass of material recovery and recycling, features extensive and intensive properties. The intensive properties can be used to define a recyclability criterion and to classify the plastic materials for a symbiotic system (industrial, municipal and commercial) into recyclability categories, where the materials with higher recyclability can be either recycled/reused within the same category or cascaded and made available to categories with lower recyclability. The potential surplus waste materials of lowest-grade recyclability would be destined for waste treatment and disposal, while the potential deficit of materials in the highest-grade recyclability category would have to be fulfilled by supplying fresh plastic material produced from primary raw materials. The current contribution takes this problem formulation as a basis to optimise the plastics recycling of industrial symbiotic systems. It defines a Plastic Material Cascade Diagram and an associated set of Supply-Demand Composite Curves, identifying the recycling bottleneck – a Pinch Point limiting the rate of recycling and determining the most efficient material recycling network design. A case study is formulated to illustrate the usefulness of the new concept in reducing the consumption of raw materials and final waste.
| Item Type: | Journal article | ||||||
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| Publication Title: | Chemical Engineering Transactions | ||||||
| Creators: | Varbanov, P.S., Chin, H.H., Jia, X., Sher, F. and Klemeš, J.J. | ||||||
| Publisher: | Associazione Italiana di Ingegneria Chimica | ||||||
| Date: | 15 November 2021 | ||||||
| Volume: | 88 | ||||||
| ISSN: | 1974-9791 | ||||||
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| Rights: | Open Access. Copyright © 2021, AIDIC Servizi S.r.l. | ||||||
| Divisions: | Schools > School of Science and Technology | ||||||
| Record created by: | Linda Sullivan | ||||||
| Date Added: | 25 Jul 2022 10:57 | ||||||
| Last Modified: | 25 Jul 2022 10:57 | ||||||
| URI: | https://irep.ntu.ac.uk/id/eprint/46698 |
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