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Sustainable syngas production: Economic and circular economy benefits of PET waste gasification

Okoye, Ifeanyi J.; Zein, Sharif H.; Oko, Eni; Jalil, A. A.

Authors

Ifeanyi J. Okoye

Sharif H. Zein

Eni Oko

A. A. Jalil



Abstract

This paper promotes awareness of the circular economy as a superior waste disposal system alternative. The novelty of this study is to model cleaner energy generation from the gasification of polyethene terephthalate (PET) waste accompanied by a detailed analysis on the economic feasibility. In the approximate analysis of PET, the percentage values for Ash and hydrogen were low (0 and 4.21, respectively). This parameter significantly impacted the Ash and hydrogen contents of the output gas, as it directly influenced the PET feedstock to a more excellent heating value (23.34 MJ/kg) and lower heating value (10.63 MJ/kg). Temperature and pressure are treated as free variables throughout each block during the gasification procedures. A sensitivity study revealed that the PET moisture content has no significant effect on the product composition. The economic analysis indicated that the gasification process could be economically viable. The economic analysis of the process considered the comprehensive evaluation of the plant’s financial aspects. The economic evaluation indicated that the facility would reach the break-even point by the end of its third year of operation, demonstrating its economic viability, with an NPV of £77,574,506.37 and an ROI of 40.1% for the suggested 25-year operational period of the facility.

Citation

Okoye, I. J., Zein, S. H., Oko, E., & Jalil, A. A. (2024). Sustainable syngas production: Economic and circular economy benefits of PET waste gasification. Progress in Rubber, Plastics and Recycling Technology, https://doi.org/10.1177/14777606241262888

Journal Article Type Article
Acceptance Date May 13, 2024
Online Publication Date Jul 21, 2024
Publication Date Jul 21, 2024
Deposit Date Aug 5, 2024
Publicly Available Date Aug 6, 2024
Journal Progress in Rubber, Plastics and Recycling Technology
Print ISSN 1477-7606
Electronic ISSN 1478-2413
Publisher SAGE Publications
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1177/14777606241262888
Keywords Gasification; Polyethylene terephthalate; Economic viability; Circular economy; Sustainable energy generation; Waste management
Public URL https://hull-repository.worktribe.com/output/4783841

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Accepted manuscript (668 Kb)
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Copyright Statement
Okoye IJ, Zein SH, Oko E, Jalil AA. Sustainable syngas production: Economic and circular economy benefits of PET waste gasification. Progress in Rubber, Plastics and Recycling Technology. Copyright © 2024 The Author(s). DOI: https://doi.org/10.1177/14777606241262888.




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