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Received July 5, 2021
Accepted February 20, 2022
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Catalytic pyrolysis of waste oil into hydrocarbon fuel utilizing cerium oxide catalyst
Mohamad Arsyad Abdul Khalid
Nurhayati Abdullah1
Mohamad Nasir Mohamad Ibrahim
Rahmad Mohd Taib2
Salmiah Jamal Mat Rosid3
Nurasmat Mohd Shukri4
NoorFatimah Yahaya5
Wan Nazwanie Binti Wan Abdullah†
School of Chemical Science, Universiti Sains Malaysia, 11800 USM Penang, Malaysia 1School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia 2Faculty of Engineering and Life Sciences, Universiti Selangor, 45600 Bestari Jaya, Selangor, Malaysia 3Unisza Science and Medicine Foundation Centre, Universiti Sultan Zainal Abidin, Gong Badak Campus, 21300, Kuala Nerus, Terengganu, Malaysia 4School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia 5Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, 13200 Bertam Kepala Batas, Penang, Malaysia
Korean Journal of Chemical Engineering, June 2022, 39(6), 1487-1495(9), 10.1007/s11814-022-1091-6
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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℃, with the heating rate at 10 oC/min, utilizing CeO2/Al2O3 catalyst calcined at 700℃. The catalytic pyrolysis successfully converted the waste oil into fuel and the oil product obtained was 93.01 wt% with a high calorific value (54.2MJ/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 (0.60wt%), 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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