Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 803, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2021.149911
Keywords
Polypropylene; PPE; COVID-19; Soil and air pollution; Plastic waste treatment; Pyrolysis
Categories
Funding
- Ministry of Higher Education (MoHE) [5540346]
- Universiti Putra Malaysia
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The COVID-19 pandemic has resulted in a significant increase in PP plastic waste, prompting the need for alternative methods such as pyrolysis to convert this waste into renewable energy. This paper summarizes the process of pyrolysis for PP plastic waste, highlighting the key parameters affecting product yields and optimization strategies for solid char production.
COVID-19 global pandemic, originated from Wuhan, resulted in a massive increase in the output of polypropylene (PP)-based personal protective equipment (PPE) for healthcare workers. The continuous demand of PPE across the world caused the PP based plastic wastes accumulation. Some alternative approaches that have been practiced apart from collecting the plastic waste in the landfills are incineration approach and open burning. However, there were many drawbacks of these practices, which promote the release of chemical additives and greenhouse gases into the environment. Therefore, a proper approach in treating the plastic wastes, which introduces conversion of plastic wastes into renewable energy is paramount. Along the way of extensive research and studies, the recovery of PP plastic to fuel-like liquid oil and solid char through thermal decomposition of pyrolysis process, helps in reducing the number of PP plastic wastes and produces good quality pyrolysis liquid oil and solid char to be used in fuel applications. This paper summarizes the pyrolysis process for massively produced PP plastic wastes, type of pyrolysis used and the main pyrolysis parameters affecting the product yields. Literature studies of pyrolysis of PP plastic and several key points to optimize solid char production for PP were thoroughly elaborated in this review paper. (c) 2021 Elsevier B.V. All rights reserved.
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