Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes

Plastic waste management becomes imperative to prevent detrimental plastic-related environmental impacts. These relate to the huge plastic waste amount in both generation and disposal, non-biodegradability of most plastic waste, persistent nature of plastic waste in the environment, and the increasi...

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Main Authors: Huang, Jijiang, Veksha, Andrei, Chan, Wei Ping, Giannis, Apostolos, Lisak, Grzegorz
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/162651
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1626512022-11-02T02:22:11Z Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes Huang, Jijiang Veksha, Andrei Chan, Wei Ping Giannis, Apostolos Lisak, Grzegorz School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Residues and Resource Reclamation Centre Engineering::Chemical engineering Pyrolysis Catalytic Reforming Plastic waste management becomes imperative to prevent detrimental plastic-related environmental impacts. These relate to the huge plastic waste amount in both generation and disposal, non-biodegradability of most plastic waste, persistent nature of plastic waste in the environment, and the increasing concern of micro- and nanoplastics on human health. To continue exporting the use and benefits of plastic materials while mitigating their impacts to the planet, reuse, recovery and recycling of plastic waste are strongly encouraged. This would promote optimization of the value chain of plastic-based materials and validate the concept of a circular polymer economy. Chemical recycling techniques have been extensively studied for energy and material recovery from plastic waste, which are assisted by catalysts for enhanced process efficiency. In this review, the research progress of the applied catalysts in various thermochemical techniques is comprehensively summarized and assessed, covering the non-catalytic and catalytic pyrolysis, reforming of pyrolysis volatiles, and gasification processes. The impacts of feedstock, process conditions and catalyst properties on the quality and yield of the products are carefully examined. Finally, the practical challenges and perspectives on catalyst design and process improvement for material circularity are suggested and the emerging novel processes for the degradation of plastic waste are highlighted. Economic Development Board (EDB) Nanyang Technological University The authors would like to acknowledge the Nanyang Environment and Water Research Institute, Nanyang Technological University (Singapore) and Economic Development Board (Singapore) for financial support of this research. 2022-11-02T02:22:11Z 2022-11-02T02:22:11Z 2022 Journal Article Huang, J., Veksha, A., Chan, W. P., Giannis, A. & Lisak, G. (2022). Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes. Renewable and Sustainable Energy Reviews, 154, 111866-. https://dx.doi.org/10.1016/j.rser.2021.111866 1364-0321 https://hdl.handle.net/10356/162651 10.1016/j.rser.2021.111866 2-s2.0-85118886113 154 111866 en Renewable and Sustainable Energy Reviews © 2021 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Chemical engineering
Pyrolysis
Catalytic Reforming
spellingShingle Engineering::Chemical engineering
Pyrolysis
Catalytic Reforming
Huang, Jijiang
Veksha, Andrei
Chan, Wei Ping
Giannis, Apostolos
Lisak, Grzegorz
Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
description Plastic waste management becomes imperative to prevent detrimental plastic-related environmental impacts. These relate to the huge plastic waste amount in both generation and disposal, non-biodegradability of most plastic waste, persistent nature of plastic waste in the environment, and the increasing concern of micro- and nanoplastics on human health. To continue exporting the use and benefits of plastic materials while mitigating their impacts to the planet, reuse, recovery and recycling of plastic waste are strongly encouraged. This would promote optimization of the value chain of plastic-based materials and validate the concept of a circular polymer economy. Chemical recycling techniques have been extensively studied for energy and material recovery from plastic waste, which are assisted by catalysts for enhanced process efficiency. In this review, the research progress of the applied catalysts in various thermochemical techniques is comprehensively summarized and assessed, covering the non-catalytic and catalytic pyrolysis, reforming of pyrolysis volatiles, and gasification processes. The impacts of feedstock, process conditions and catalyst properties on the quality and yield of the products are carefully examined. Finally, the practical challenges and perspectives on catalyst design and process improvement for material circularity are suggested and the emerging novel processes for the degradation of plastic waste are highlighted.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Huang, Jijiang
Veksha, Andrei
Chan, Wei Ping
Giannis, Apostolos
Lisak, Grzegorz
format Article
author Huang, Jijiang
Veksha, Andrei
Chan, Wei Ping
Giannis, Apostolos
Lisak, Grzegorz
author_sort Huang, Jijiang
title Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
title_short Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
title_full Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
title_fullStr Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
title_full_unstemmed Chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
title_sort chemical recycling of plastic waste for sustainable material management: a prospective review on catalysts and processes
publishDate 2022
url https://hdl.handle.net/10356/162651
_version_ 1749179158838116352