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Kinetic and thermodynamic of heterogeneously K₃PO₄/AC-catalysed transesterification via pseudo-first order mechanism and eyring-polanyi equation


Citation

Ahmad Farid, Mohammed Abdillah and Hassan, Mohd Ali and Yap, Taufiq Yun Hin and Ibrahim, Mohd Lokman and Hasan, Muhamad Yusuf and Mohd Ali, Ahmad Amiruddin and Othman, Mohd Ridzuan and Shirai, Yoshihito (2018) Kinetic and thermodynamic of heterogeneously K₃PO₄/AC-catalysed transesterification via pseudo-first order mechanism and eyring-polanyi equation. Fuel, 232. 653 - 658. ISSN 0016-2361; ESSN: 1873-7153

Abstract

The use of carbon-based catalysts has drawn so much interest in biodiesel production due to improved reaction performance. However, there was lack of comprehensive studies in term of its kinetic and thermodynamic perspective. Therefore, a methodical study is essential to uncover the influence of the carbon catalyst with respect to reaction rate and yield. This study represents kinetic and thermodynamic of heterogeneously K₃PO₄/AC-catalysed transesterification. It was done correspondingly via pseudo-first order mechanism and Eyring-Polanyi equation, whereby, under the optimal reaction temperature of 333.15 K, all data have fitted satisfactorily in both models with resulted R² of 0.99, respectively. Activation energy (Ea) and Gibbs free energy (ΔG) were calculated as 34.2 kJ mol⁻¹ and −33.68 kJ mol⁻¹, indicating the reaction was exergonic and spontaneous at high temperature.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Engineering
Faculty of Science
DOI Number: https://doi.org/10.1016/j.fuel.2018.06.029
Publisher: Elsevier
Keywords: Carbon-based catalyst; Pseudo-first order; Eyring-Polanyi equation; Kinetic and thermodynamic; Heterogeneous reaction; Biodiesel
Depositing User: Mr. Sazali Mohamad
Date Deposited: 10 Dec 2020 21:13
Last Modified: 10 Dec 2020 21:13
Altmetrics: http://www.altmetric.com/details.php?domain=psair.upmedu.my&doi=10.1016/j.fuel.2018.06.029
URI: http://psasir.upm.edu.my/id/eprint/74787
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