Theoretical study of the transesterification of triglycerides to biodiesel fuel

Asakuma, Yusuke; Maeda, Kouji; Kuramochi, Hidetoshi; Fukui, Kiichi

doi:10.1016/j.fuel.2008.10.045

Cited by 97 publications

(48 citation statements)

References 19 publications

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“…Transesterification with an alkoxy group under basic conditions is shown in Fig. 3(a); the cyclic transition state is five-membered (Asakuma et al, 2009). In this study, the mechanism under acidic conditions is shown as follows.…”

Section: Resultsmentioning

confidence: 75%

Theoretical Study of the Transesterification of Triglycerides to Biodiesel Fuel under Various Conditions

Asakuma¹

2011

Int. J. Thermo

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The transesterification of triglycerides under various conditions was considered in terms of the activation energy obtained from molecular orbital calculations. The transesterification reaction proceeds via a cyclic transition state, consisting of the carboxyl carbon and the alcohol. Moreover, the reaction pathway was shown by an activation energy analysis and an electrostatic potential distribution.

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Section: Resultsmentioning

confidence: 75%

Theoretical Study of the Transesterification of Triglycerides to Biodiesel Fuel under Various Conditions

Asakuma¹

2011

Int. J. Thermo

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“…7 shows that the reactive site of oleic acid is the carboxyl moiety. According to the reaction mechanism of esterification reaction, a tetrahedral intermediate is formed when the alcohol attacks the carboxyl moiety of oleic acid [31]. Thus, when molecules of alcohol and fatty acid are close, the electrostatic forces are possibly stronger than the natural bonds of these molecules.…”

Section: Advantage Of Methanol According To Electrostatic Potential Dmentioning

confidence: 99%

Thermochemical data of the oleic acid esterification reaction: A quantum mechanics approach

Silva

Hori

Reis

2015

Fluid Phase Equilibria

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“…In 4 ], provided higher reaction rates than sulfuric acid and are still less corrosive. As expected, the reaction rates increased with higher temperatures and catalyst concentrations.…”

Section: Resultsmentioning

confidence: 99%

“…The experiments were carried out using 4 ] or H 2 SO 4 ) in alcoholic solution. Before and after stirring, the metal plate was weighed and the different masses were compared and correlated to the corrosion rate.…”

Section: Corrosion Effects By [Mimbs][hso 4 ] Compared To Sulfuric Acidmentioning

confidence: 99%

Continuous Transesterification with Acidic Ionic Liquids as Homogeneous Catalysts

et al. 2013

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Ionic liquids (ILs) are recyclable acid catalysts for transesterification reactions. In the present study, different acidic ILs were examined in this reaction, with special focus on their recyclability. Furthermore, the IL-catalyzed transesterification reaction was realized in continuous operation. A miniplant reactor with technically representative design and operating characteristics was used for this study. The applied rig has a volume of 5 L and an external thermosyphon reboiler. The miniplant reactor can be operated in batch and in continuous mode. ILs functionalized with a sulfonic acid group were found to be the most suitable IL catalysts for the transesterification reactions under investigation. Using these ILs, reaction rates as high as for H 2 SO 4 could be realized. Moreover, the IL catalyst was demonstrated to be active for at least 1000 h of operation time.

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Theoretical study of the transesterification of triglycerides to biodiesel fuel

Cited by 97 publications

References 19 publications

Theoretical Study of the Transesterification of Triglycerides to Biodiesel Fuel under Various Conditions

Theoretical Study of the Transesterification of Triglycerides to Biodiesel Fuel under Various Conditions

Thermochemical data of the oleic acid esterification reaction: A quantum mechanics approach

Continuous Transesterification with Acidic Ionic Liquids as Homogeneous Catalysts

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