Transesterification Of Used Frying Oil And Optimization For Biodiesel Production

Fadrah Hanim, Ad Suhadak (2015) Transesterification Of Used Frying Oil And Optimization For Biodiesel Production. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Used Frying Oil (UFO) has significant potential as the raw material or starting substance for biodiesel production. As known to public the amount of petroleum is decreasing each day. Therefore, there are many research is being conducted to introduce a new alternative fuel to be used in diesel engine. The objective of this research is to compare the characteristics and performance of sodium hydroxide (NaOH) and potassium hydroxide (KOH) used for alkaline-catalyzed transesterification. The variables selected to be optimized are concentration of catalyst, reaction of time and temperature in transesterification. The respond variables to be determined are the performance of yields and density of biodiesel from UFO as the starting. Moreover, this research studies on the effect of variables and type of catalyst on transesterification process. The transesterification process is conducted on a mixing stirrer, to give out consistency of temperature and stir towards the mixture of UFO, catalyst and methanol. The density of biodiesel produced will be measures using a S.G bottle. Moreover, design of experiment is determine by Taguchi’s Method to optimize the yield product and density of biodiesel. On top of that, the optimum value of KOH catalyst is at 0.63 wt.% concentration of catalyst, 60 ℃ reaction temperature and at 20 min reaction time produces yield production of 97.1648 g and 0.8755 g/cm3. Meanwhile for NaOH, the optimum value is at 0.45 wt.% concentration of catalyst, 60 ℃ reaction temperature and 30 min reaction time generates yield production of 95.6810 g and density of 0.8720 g/cm3. Thus, it shows that KOH is the better catalyst compared to NaOH in biodiesel production.

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