Pyro-oil and wax recovery from reclaimed plastic waste in a continuous Auger pyrolysis reactor

Abstract

The increasing global waste plastic pollution is urging people to take immediate actions on effective plastic recycling and processing. In this work, we report the results of processing reclaimed plastic wastes from unsanitary landfill site in Kuwait by using a bench scale continuous auger pyrolysis system. The plastic feedstock was characterised. After a simple thermal densification process, the material was fed to the pyrolysis system at 500 ◦C. The pyro-oil and wax products were collected and characterised. The process mass balance was developed on dry basis, and the yields of pyro-oil, light wax, heavy wax and gases were 5.5, 23.8, 69.4 and 1.3 wt%, respectively. The findings have indicated that the reclamation of plastic waste from landfill was feasible in terms of the product distribution and characteristics. Further liquid analysis confirmed that the liquid products contained fractions that are comparable to petrol and diesel fuels. The wax products are viable and have potential application as coating, covering and lubrication.

Publication DOI: https://doi.org/10.3390/en13082040
Divisions: Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Engineering & Applied Sciences
Engineering & Applied Sciences > Aston Institute of Materials Research (AIMR)
Additional Information: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Funding: The authors would like to thank the Kuwait Institute for Scientific Research (KISR) and the British Council/UK-Gulf Institutional Links for funding and supporting this research project (EM103C) through Grant #2793-5936-4.
Uncontrolled Keywords: Landfilling,Plastic waste,Pyro-oil,Pyrolysis,TGA,Renewable Energy, Sustainability and the Environment,Energy Engineering and Power Technology,Energy (miscellaneous),Control and Optimization,Electrical and Electronic Engineering
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.mdp ... -1073/13/8/2040 (Publisher URL)
PURE Output Type: Article
Published Date: 2020-04-20
Accepted Date: 2020-04-03
Authors: Al-Salem, Sultan Majed
Yang, Yang ( 0000-0003-2075-3803)
Wang, Jiawei ( 0000-0001-5690-9107)
Leeke, Gary Anthony

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