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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received November 16, 2022
Revised January 7, 2023
Accepted January 31, 2023
- Acknowledgements
- This study was supported by the Research Program funded by the SeoulTech (Seoul National University of Science and Technology)
- This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Strategic use of thermo-chemical processes for plastic waste valorization
Abstract
Plastic is one of the most widely used materials in industries including packaging, building, and construction due to its lightweight, low cost, durability, and versatility. However, the mass production of plastics has exacerbated plastic pollution. Globally, plastic waste is predominantly incinerated, landfilled, or released into the environment;
only 5-6% is recycled in the United States. Although conventional management protocols such as incineration and
landfilling are evidently effective for plastic waste disposal, they are associated with significant environmental and societal challenges. In addition, most recycled plastic is downcycled, and thus does not provide sufficient incentive to use
recycled materials instead of virgin materials. This review discusses thermo-chemical upcycling processes such as (catalytic) pyrolysis and heterogeneous catalysis. Furthermore, we present the recent progress in the thermo-chemical
upgrading of single-type plastic waste, heterogeneous plastic mixtures, and post-consumer plastic waste obtained from
different locations and, finally, suggest future research directions
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