Plastic waste to liquid fuel: A review of technologies, applications, and challenges


One of the most promising approaches for converting waste plastics into oil is fast pyrolysis. This study reviews the current state of the art and recent progress made on the thermal conversion of plastic to oil technologies, and their uses as alternatives to fossil fuels. The fuel properties of waste plastic pyrolysis oil (WPPO) are close to the diesel fuel. The WPPO produced from high-density polyethylene, low-density polyethylene, polypropylene, and polystyrene have higher heating values ranging from 40 to 43 MJ/kg. The thermal efficiency of neat WPPO (or blends) was slightly lower than diesel or gasoline. The WPPO has a shorter ignition delay than diesel due to its high cetane number. The WPPO fuels have a lower peak in-cylinder pressure and heat release rate than diesel. Engine-out emissions such as smoke, CO, and CO 2, are lower than diesel. The NO x emissions are higher than diesel, which can be reduced with exhaust gas recirculation or use of additives. Our study reveals that the WPPO is a promising alternative fuel for diesel engine applications.

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Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
Additional Information: © 2022, Elsevier Ltd. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
Uncontrolled Keywords: Energy,Engine,Environment,Performance,Plastic Oil,Pyrolysis,Renewable Energy, Sustainability and the Environment,Energy Engineering and Power Technology
Publication ISSN: 2213-1388
Last Modified: 15 May 2024 07:56
Date Deposited: 07 Oct 2022 15:47
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.sci ... 213138822007007 (Publisher URL)
PURE Output Type: Article
Published Date: 2022-10
Published Online Date: 2022-08-29
Accepted Date: 2022-08-10
Authors: Sharma, Vikas (ORCID Profile 0000-0002-0603-8208)
Hossain, Abul Kalam (ORCID Profile 0000-0002-8713-8058)
Griffiths, Gareth (ORCID Profile 0000-0002-7507-6945)
Duraisamy, Ganesh
Krishnasamy, Anand
Ravikrishnan, Vinu
Sodre, Jose Ricardo (ORCID Profile 0000-0003-2243-8719)

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