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A Kinetic Study on the Esterification of Oleic Acid with Methanol in the Presence of Amberlyst-15  

Kim, Young-Joo (Department of New and Renewable Energy, Korea Institute of Energy Research)
Kim, Deog-Keun (Department of New and Renewable Energy, Korea Institute of Energy Research)
Rhee, Young Woo (Department of Chemical Engineering, Chungnam National University)
Park, Soon-Chul (Department of New and Renewable Energy, Korea Institute of Energy Research)
Lee, Jin-Suk (Department of New and Renewable Energy, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.43, no.5, 2005 , pp. 621-626 More about this Journal
Abstract
The esterification reaction of free fatty acid with methanol was investigated in the presence of catalyst, Amberlyst-15, producing fatty acid methyl ester, namely, biodiesel. In this paper, the effects of the reaction parameters such as reaction temperature, mole ratio of alcohol to oleic acid and mass of catalyst on the catalytic activity have been examined. The results showed that the reaction rate increased about twice as the temperature increased every $20^{\circ}C$ in the reaction temperature range from 333 K to 373 K. The equilibrium conversion rate of oleic acid increased with the feed mole ratio of alcohol to acid ranging from 6:1 to 44:1. When the feed mole ratio was higher than 44:1, all the results were similar to that of 44:1. As for the influence of the mass of catalyst, the initial reaction rate increased from 1.2 to 1.3 times as the mass of catalyst doubles in the range of the catalyst weight from 5 to 20 wt%. The experiment data obtained were well described by the second reaction rate using a pseudo-homogeneous model.
Keywords
Biodisel; Esterification; Oleic Acid; Methanol; Amberlyst;
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Times Cited By KSCI : 5  (Citation Analysis)
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