Thesis Archive
Alkali-catalyzed Transesterification of waste cooking oil (WCO) by Conventional Heating (2011)
Conception, Aliza V.
Jardin, Kimberly
Razon, Jerica Marise
Abstract:
-“Biodiesel is usually produced from three types of feedstock: edible oil, non- edible oil and waste cooking oil (WCO). WCO was chosen for this study because it is readily available, cheaper, doesn’t compete with the food industry with the consumption and land for plantation and its contribution to the waste disposal solution of WCO making the production process more beneficial and environmentally friendly. The purpose of this study was to compare the yields of the biodiesel produced from Samples A and B using methanol and ethanol as alcohol in the transesterification reaction. For the transesterification process, this was done by conventional heating using potassium hydroxide and sodium hydroxide as the catalysts and methanol and ethanol as the alcohols. The parameters considered for this process were reaction time, alcohol to oil ratio, reaction temperature and catalyst concentration. From the results obtained from the experiments performed, the effect of the main parameters, alcohol to oil ratio, catalyst concentration and reaction time on the yield of biodiesel were obtained. The alcohol to oil ratio and catalyst concentration were observed to have a negative influence on the biodiesel yield. The graphs of the reaction time parameter using methanol as alcohol did not change considerably with time. However, the graph of the reaction time parameter using ethanol decreased at a certain point due to the backward reaction that occurred in ethanolysis. In general, a higher yield was obtained when methanol was the alcohol used compared to that of ethanol. On the other hand, high yield values were obtained using potassium hydroxide catalyst than that of when sodium hydroxide was used.”
Adviser:
Susan Roces
Florinda T. Bacani
Raymond R. Tan