Abstract
The depletion of fossil fuels has prompted research into alternative fuels made from regeneration of waste materials. Pyrolysis is a method of converting waste oil into valuable products, such as char, gas, and fuel. This study presents the catalytic pyrolysis of waste oil for producing fuel utilizing cerium oxide, CeO2/Al2O3 and zinc oxide, ZnO/Al2O3 catalyst. The catalyst and oil were characterized using several characterization techniques to find the physicochemical properties of the catalyst and oil. The optimum condition for catalytic pyrolysis was a reaction temperature at 500 °C, with the heating rate at 10 °C/min, utilizing CeO2/Al2O3 catalyst calcined at 700 °C. The catalytic pyrolysis successfully converted the waste oil into fuel and the oil product obtained was 93.01 wt% with a high calorific value (54.2 MJ/kg). The pyrolysis oil is comprised of aliphatic hydrocarbon (C5–C15 hydrocarbon) that is within the hydrocarbon range for gasoline and diesel. The oil product was also detected to have a low content of oxygen (3.07 wt%) and sulfur (0.60 wt%), indicating its potential to serve as a cleaner, fuel reducing the sulfur dioxide, SOX formation. The results reveal that pyrolysis reactors have the ability to convert waste oil into hydrocarbon fuel.
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Acknowledgement
The authors are grateful for the financial support by Ministry of Higher Education Malaysia for Fundamental Research Grant Scheme (FRGS) with Project Code: FRGS/1/2020/STG04/USM/03/2.
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Khalid, M.A.A., Abdullah, N., Ibrahim, M.N.M. et al. Catalytic pyrolysis of waste oil into hydrocarbon fuel utilizing cerium oxide catalyst. Korean J. Chem. Eng. 39, 1487–1495 (2022). https://doi.org/10.1007/s11814-022-1091-6
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DOI: https://doi.org/10.1007/s11814-022-1091-6