E-mail address: agrotech@nora.lzua.lt. When the alcohol component is glycerol , the fatty acid esters produced can be monoglycerides , diglycerides , or triglycerides . Egle Sendzikiene. ); mohamedhedi.frikha@gmail.com … Fatty acid esters (FAEs) are a type of ester that result from the combination of a fatty acid with an alcohol. The kinetic of fatty acids esterification with ethanol utilizing niobium oxide catalyst (79.8% of N b O 5 and 19.6% of water) for the production of biodiesel was analyzed through a reversible kinetic modeling for the determination of the kinetic and thermodynamic data of the reactions. Esterification of Fatty Acids with Short-Chain Alcohols over Commercial Acid Clays in a Semi-Continuous Reactor Soumaya Bouguerra Neji, Mahmoud Trabelsi * and Mohamed H. Frikha Laboratory of Applied Chemistry: Heterocycles, Fats and Polymers, Faculté des Sciences de Sfax, Route de Soukra Km 3.5, 3038-Sfax, Tunisia; E-Mails: soumaya5555@yahoo.fr (S.B.N.
For example, esterification of free fatty acids was completed in two minutes with 12 to 14% boron trifluoride in methanol under reflux [236].
The results showed the highest esterification yields of 93, 88, and 80% with the p-toluenesulfonic acid, lignin-based, and Amberlyst 15 catalysts, respectively, at 100 °C with a reaction time of 60 min, and the corresponding yield without catalyst was 20%. Fast Esterification of Fatty Acids with Alkyl Chloroformates Optimization and Application in Gas Chromatography Petr HuSek Research Institute of Endocrinology, Narodni 3ida 8, 1 16 94 Prague 1, Czechoslovakia Jacques A. Rijks, Piet A. Leclercq, and Carl A. Cramers Laboratory of Instrumental Analysis, Eindhoven University of Technology, PO.Box 51 3, 5600 MB Eindhoven, The Netherlands
The catalyst is removed with the water. Kinetics of free fatty acids esterification with methanol in the production of biodiesel fuel . The aim of this study was the determination of optimal conditions of free fatty acid esterification by methanol using acid catalyst, and the calculation of the kinetic parameters of this process.
It was found that the reaction rate depends on the amount of the catalyst and the acidity of the reaction mixture. It was also observed that the lignin-based catalyst could be easily recovered and reused without any notable deactivation. The alcohol that is used determines the alkyl chain length of the resulting esters (the use of methanol will result in the formation of methyl esters whereas the …
Violeta Makareviciene.
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Institute of Environment, Lithuanian University of Agriculture, Kaunas, Lithuania.
The Lewis acid, boron trifluoride, in the form of its coordination complex with methanol is a powerful acidic catalyst for the esterification of fatty acids. An alcohol then combines with the protonated acid to yield an ester with the loss of water. Corresponding Author.
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