Ultrasound Assisted Esterification of Rubber Seed Oil for Biodiesel Production

W , Widayat, and Berkah , Fajar and Tamtomo , Kiono (2012) Ultrasound Assisted Esterification of Rubber Seed Oil for Biodiesel Production. International Journal of Renewable Energy Development, 1 (1). pp. 1-5. ISSN 2252-4940

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Abstract

Production of biodiesel is currently shifting from the first to the second generation in which the raw materials are mostly from non-edible type oils and fats. Biodiesel production is commonly conducted under batch operation using mechanical agitation to accelerate mass transfers. The main drawback of oil esterification is the high content of free fatty acids (FFA) which may reduce the yield of biodiesel and prolong the production time (2-5 hours). Ultrasonification has been used in many applications such as component extraction due to its ability to produce cavitation under certain frequency. This research is aimed to facilitate ultrasound system for improving biodiesel production process particularly rubber seed oil. An ultrasound unit was used under constant temperature (40oC) and frequency of 40 Hz. The result showed that ultrasound can reduces the processing time and increases the biodiesel yield significantly. A model to describe correlation of yield and its independent variables is yield (Y) = 43,4894 – 0,6926 X1 + 1,1807 X2 – 7,1042 X3 + 2,6451 X1X2 – 1,6557 X1X3 + 5,7586 X2X3 - 10,5145 X1X2X3, where X1 is mesh sizes, X2 ratio oil: methanol and X3 type of catalyst.

Item Type:Article
Uncontrolled Keywords:Rubber seed oil, Ultrasound, Esterification, Biodiesel, Yield
Subjects:T Technology > T Technology (General)
Divisions:Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:36261
Deposited By:teknik kimia
Deposited On:09 Oct 2012 16:20
Last Modified:09 Oct 2012 16:20

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