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This study explores the conversion of low-density polyethylene (LDPE) plastic waste into energy via catalytic pyrolysis using fly ash as a catalyst and biogas for heating. The catalytic process improves LDPE degradation by lowering temperature requirements and increasing liquid hydrocarbon yields compared to thermal methods, which fuels the pyrolysis reactor. Blending waste plastic oil (WPO) with diesel, particularly the 25W75D blend, shows superior performance in a Kirloskar TV-I diesel engine due to balanced ignition and combustion properties, achieving higher heat release rates and brake thermal efficiency. This approach presents WPO as a promising alternative fuel, aligning with sustainability by reducing plastic waste and providing cleaner energy.

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A Study on the Catalytic Pyrolysis of LDPE Using Fly Ash and Biogas in a Diesel Engine: Optimizing the Combustion Characteristics of Waste Plastic Oil Blend

  • 会议论文

  • 发表日期：

    2026年

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  • J. Nishanth Jude Roy,
  • P. Premkumar,
  • V. Elangkathir,
  • C. G. Saravanan,
  • S. Rajasomashekar,
  • V. Vinothkumar

摘要

This study explores the conversion of low-density polyethylene (LDPE) plastic waste into energy via catalytic pyrolysis using fly ash as a catalyst and biogas for heating. The catalytic process improves LDPE degradation by lowering temperature requirements and increasing liquid hydrocarbon yields compared to thermal methods, which fuels the pyrolysis reactor. Blending waste plastic oil (WPO) with diesel, particularly the 25W75D blend, shows superior performance in a Kirloskar TV-I diesel engine due to balanced ignition and combustion properties, achieving higher heat release rates and brake thermal efficiency. This approach presents WPO as a promising alternative fuel, aligning with sustainability by reducing plastic waste and providing cleaner energy.