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Transesterification of jatropha oil with methanol over Mg–Zn mixed metal oxide catalysts


Lee, Hwei Voon and Yap, Taufiq Yun Hin and Hussein, Mohd Zobir and Yunus, Robiah (2013) Transesterification of jatropha oil with methanol over Mg–Zn mixed metal oxide catalysts. Energy, 49. pp. 12-18. ISSN 0360-5442; ESSN: 1873-6785


A design was developed for the transesterification reaction of non-edible Jatropha Curcas oil using a heterogeneous catalysis system to replace the use of a homogeneous catalytic reaction. Investigations were conducted on solid MgO–ZnO mixed metal oxide catalyst bases with different atomic ratios of magnesium to zinc (Mg/Zn). These catalysts were characterized by BET (Brunauer–Emmer–Teller) surface area analysis, X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS), and the alkalinity of the catalysts was studied by Temperature Programmed Desorption of carbon dioxide (TPD-CO2). The physicochemical properties of the MgO–ZnO binary system were superior to those of the individual bulk oxides of MgO and ZnO. In addition, the formation of a binary system between MgO and ZnO established an effective method for transesterification processes. In this study, the effects of stoichiometric composition and surface characteristics on the transesterification activity of MgO–ZnO were investigated. The catalysts exhibited high catalytic activity (∼80%) with reliable reusability for biodiesel production.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
DOI Number: https://doi.org/10.1016/j.energy.2012.09.053
Publisher: Elsevier
Keywords: Biodiesel; FAME; Heterogeneous catalyst; Mixed metal oxide; MgO–ZnO
Depositing User: Umikalthom Abdullah
Date Deposited: 17 Jun 2014 07:04
Last Modified: 24 Nov 2016 07:41
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.energy.2012.09.053
URI: http://psasir.upm.edu.my/id/eprint/30017
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