Journal
FUEL
Volume 302, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2021.121152
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- Taif University, Taif Taif, Saudi Arabia [TURSP-2020/40]
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Candle nut biodiesel has poor oxidation stability, leading to insoluble gums and residues that can block fuel filters, while soap nut biodiesel has higher oxidation stability; blending the two biodiesels can improve engine performance and reduce emissions.
Candle nut oil was produced from candle nut seeds by the process of crushing and filtering. The candle nut biodiesel was prepared by a two-step co-solvent esterification process and is found to be one of the best alternate fuels for running the diesel engine. The oxidation stability of the candle nut biodiesel was found to be poor and this leads to high acid value and inception of insoluble gums and dregs or scum that can block the fuel filters. Soap nut oil was extracted from soap nut seeds by the process of crushing and filtering. The soap nut biodiesel was prepared by transesterification process and has higher oxidation stability compared to candle nut biodiesel. Similarly, the cold filter plugging point of candle nut biodiesel is good compared to soap nut biodiesel and it depends upon the amount of saturated fat. Hence the mixing of soap nut biodiesel and candle nut biodiesel will increase the properties for the smooth run of engine with fewer emissions compared to diesel. In this work, engine performances and exhaust contents were evaluated for various blends of mixed soap nut biodiesel and candle nut biodiesel.
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