January 2010
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UPB Scientific Bulletin, Series C: Electrical Engineering
We studied the transesterification of two types of waste cooking oil (WCO), with methanol and ethanol using NaOH. Also the physical characteristics of produced biodiesel were studied and compared to the European standard EN 14214. The WCO used in this study was collected from the École des Mines de Nantes university's restaurant. We used to search the optimum conversion ratio, combining four variables: temperature of reaction, catalyst amount, time of reaction and alcohol to oil molar ratio, the effect of free fatty acid content in the oil and the type of alcohol used in the reaction were also studied.