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Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel
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This review examined pyrolysis as a method to convert low-density and high-density polyethylene plastic waste into fuel, summarizing process parameters, product yields, and fuel quality. Pyrolysis can transform otherwise unrecyclable plastic into diesel-like hydrocarbon fuels. The technology offers a potential solution for managing polyethylene waste while generating energy from materials that would otherwise persist in the environment.
Abstract The global demand for plastic is increasing year by year due to its indispensable uses and excellent properties. The rate of post-consumer plastic waste discarded into the environment is also increasing in parallel with the demand for plastics. The amount of plastic waste generated varies based on its uses such as household, industrial, commercial, hospital, and others. Plastic wastes persist for many years due to their slow deterioration and cause severe environmental problems. Therefore, there is a growing focus worldwide on plastic waste disposal methods to overcome adverse environmental impacts. As the plastics are petroleum-based materials, the pyrolysis of plastics to fuel oil, gases, and char, has a great concern than the other plastic waste management methods of recycling and landfilling. A yield of 70-80 wt.% of liquid fuel from a pyrolysis waste has been reported elsewhere which emerges the importance and aptness of this method in plastic waste management. This paper review the existing literature on pyrolysis processes developed for HDPE and LDPE wastes globally and their governing factors of heating rate, temperature, processing time, polymer to catalysts ratio, type of the catalysts, and type of the reactor that influenced the yields of fuel oil and gases
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Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel
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This review focuses on pyrolysis as a method to convert waste LDPE and HDPE plastics into liquid fuel, summarizing reactor types, catalysts, and the factors influencing fuel yield and quality. While not about microplastics directly, it addresses the upstream problem of plastic waste accumulation — particularly the conversion of plastics that would otherwise persist in the environment and fragment into microplastics — into usable energy resources.
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This review summarizes existing research on turning plastic waste into fuel through heating processes called pyrolysis and gasification, which can produce liquid fuel, gas and char. It discusses what affects output quality, and covers environmental, economic and engine-use aspects of these methods.
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Researchers analyzed the chemical composition and properties of fuel oils produced via pyrolysis from both high-density polyethylene (HDPE) and low-density polyethylene (LDPE), evaluating their potential as alternative fuels. The study characterized hydrocarbon distributions and fuel quality parameters to assess the viability of plastic-to-fuel conversion as a waste management strategy.
Pyrolysis of Plastic Waste into The Fuel Oil
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This engineering paper describes the pyrolysis of plastic waste into fuel oil, evaluating process conditions and product yield. It is a waste-to-energy study relevant to plastic recycling but focused on industrial conversion rather than environmental microplastic contamination.
The Present and the Future of Polyethylene Pyrolysis
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This review examines the pyrolysis of polyethylene as a waste-to-energy strategy, discussing how key process parameters — temperature, catalyst type, and agitation — influence the yield and quality of liquid oils, fuel gases, and solid chars produced from non-biodegradable petroleum-based plastic waste.
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