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Energies 2009, 2(4), 1107-1117; doi:10.3390/en20401107

Esterification of Fatty Acids with Short-Chain Alcohols over Commercial Acid Clays in a Semi-Continuous Reactor

Laboratory of Applied Chemistry: Heterocycles, Fats and Polymers, Faculté des Sciences de Sfax, Route de Soukra Km 3.5, 3038-Sfax, Tunisia
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Received: 18 September 2009 / Accepted: 6 November 2009 / Published: 19 November 2009
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Abstract

Production of fatty acid esters from stearic, oleic, and palmitic acids and short-chain alcohols (methanol, ethanol, propanol, and butanol) for the production of biodiesel was investigated in this work. A series of montmorillonite-based clays catalysts (KSF, KSF/0, KP10, and K10) were used as acidic catalysts. The influence of the specific surface area and the acidity of the catalysts on the esterification rate were investigated. The best catalytic activities were obtained with KSF/0 catalyst. The esterification reaction has been carried out efficiently in a semi-continuous reactor at 150°C temperature higher than the boiling points of water and alcohol. The reactor used enabled the continuous removal of water and esterification with hydrated alcohol (ethanol 95%) without affecting the original activity of the clay. View Full-Text
Keywords: esterification; montmorillonite; semi-continuous reactor; fatty acid; hydrated alcohol esterification; montmorillonite; semi-continuous reactor; fatty acid; hydrated alcohol
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Bouguerra Neji, S.; Trabelsi, M.; Frikha, M.H. Esterification of Fatty Acids with Short-Chain Alcohols over Commercial Acid Clays in a Semi-Continuous Reactor. Energies 2009, 2, 1107-1117.

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