Polypropylene is the most common type of plastic found in municipal solid waste. The production of polypropylene is expected\udto increase due to the widespread utilization in daily life, resulting in even higher amounts of polypropylene waste. Sending this\udplastic to landfill not only exacerbates environmental problems, but also results in energy loss due to the elevated energy content of\udpolypropylene. Pyrolysis is a process that can effectively convert polypropylene waste into fuel, which can then be used to generate\udpower and heat. In the present study, the ect of the pyrolysis temperature on the pyrolysis of polypropylene was investigated, and\udthe oils produced at 700oC (PP700) and 900oC (PP900) were used to fuel a four cylinder diesel engine. The engine's combustion,\udperformance and emission characteristics were analysed and compared to diesel operation. The results showed that both PP700\udand PP900 enabled stable engine operation, with PP900 performing slightly better in terms of efficiency and emissions. However,\udPP700 and PP900 were found to have longer ignition delay periods, longer combustion periods, lower brake thermal efficiencies,\udhigher NOX, UHC and CO emissions, and lower CO2 emissions in comparison to diesel operation. Nonetheless, the addition of a\udsmall quantity of diesel improved the overall performance of the oil blends, resulting in comparable results to diesel in the case of\udPP900.
展开▼
