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Abstract
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Article Information:
Experimental and Modeling Studies of the Reaction Kinetics of Alkaline-Catalyzed used Frying Oil Glycerolysis using Isopropyl Alcohol as a Reaction Solvent
Andri Cahyo Kumoro
Corresponding Author: Andri Cahyo Kumoro
Submitted: October 05, 2011
Accepted: November 15, 2011
Published: April 15, 2012 |
Abstract:
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An alkaline catalyzed glycerolysis of used frying oil using sodium hydroxide and isopropyl alcohol
as solvent was investigated. A reaction kinetic model considering glycerol-triglyceride solubility and a secondorder
kinetic mechanism was also developed. The effect of variations in glycerol to used frying oil molar ratio
(RGO = 2:1 to 4:1) and temperature (60 to 80ºC) on the rate of reaction were investigated, while the isopropyl
alcohol to used frying oil ratio (2:1 v/w) and the concentration of catalyst (3 wt% based on used frying oil) were
held constant. Results showed that both RGO and temperature affected the glycerolysis reaction kinetic, with the
effect of RGO was found to be superior. The proposed model showed its good agreement with the experimental
data. Glycerolysis at RGO = 3:1 and 80ºC in 90 min was found to be a relatively good condition, where 91.03%
of tryglceride was converted into MG.
Key words: Alkaline, IPA, kinetic, model, solvent used frying oil, ,
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Abstract
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Cite this Reference:
Andri Cahyo Kumoro, . Experimental and Modeling Studies of the Reaction Kinetics of Alkaline-Catalyzed used Frying Oil Glycerolysis using Isopropyl Alcohol as a Reaction Solvent. Research Journal of Applied Sciences, Engineering and Technology, (08): 869-876.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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