Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/149255
Title: Environmental impact assessment of converting flexible packaging plastic waste to pyrolysis oil and multi-walled carbon nanotubes
Authors: Ahamed, Ashiq
Veksha, Andrei
Yin, Ke
Weerachanchai, Piyarat
Giannis, Apostolos
Lisak, Grzegorz
Keywords: Engineering::Environmental engineering::Waste management
Issue Date: 2020
Source: Ahamed, A., Veksha, A., Yin, K., Weerachanchai, P., Giannis, A. & Lisak, G. (2020). Environmental impact assessment of converting flexible packaging plastic waste to pyrolysis oil and multi-walled carbon nanotubes. Journal of Hazardous Materials, 390, 121449-. https://dx.doi.org/10.1016/j.jhazmat.2019.121449
Journal: Journal of Hazardous Materials 
Abstract: A solution to low recycling rates of plastic waste is the conversion into multi-walled carbon nanotubes (MWCNTs) that have high value and can create additional revenue for plant operators. The purpose of this study was to perform a life cycle assessment (LCA) of an integrated system that involves flexible packaging plastic waste (FPPW) pyrolysis, oil upgrading, and MWCNTs production. The objectives were to determine the environmental impact of MWCNTs synthesis from non-condensable pyrolysis gases, and to assess the environmental impact of MWCNTs synthesis from different plastic fractions. Integrating MWCNTs synthesis to the plastic pyrolysis process provides various environmental benefits including, reduction of contribution towards climate change, fossil depletion, human toxicity (cancer), and ionizing radiation potentials. Sensitivity analysis of MWCNTs yields provided the range of impacts on the environment and a critical yield of >2% for most impact categories was determined. Comparison of different plastic fractions indicated that using low PET content feedstock had lesser impact on the environment, and demonstrated comparable performance to mixed virgin plastics for most impact categories. The results highlighted the versatility of the integrated pyrolysis process for treating diverse plastic waste fractions with negligible effects from the impurities present in the actual FPPW during thermal processing.
URI: https://hdl.handle.net/10356/149255
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2019.121449
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Journal of Hazardous Materials and is made available with permission of Elsevier B.V.
Fulltext Permission: embargo_20220515
Fulltext Availability: With Fulltext
Appears in Collections:NEWRI Journal Articles

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