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Vol. 28 No. 2 (2016): Vol 28 Issue 2

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Biodiesel Production from Canola Oil with Methanol in Presence of Nanocrystalline MgO-Supported Alkaline Catalysts

https://doi.org/10.14233/ajchem.2016.18951
Nezahat Boz
Department of Chemical Engineering, Faculty of Engineering, Gazi University, 06570 Maltepe, Ankara, Turkey
Nebahat Degirmenbasi
Department of Chemistry, Faculty of Sciences, Gazi University, 06500, Teknikokullar, Ankara, Turkey

Corresponding Author(s) : Nezahat Boz

nboz@gazi.edu.tr

Asian Journal of Chemistry, Vol. 28 No. 2 (2016): Vol 28 Issue 2

Abstract

Transesterification reaction of canola oil to biodiesel was performed using alkaline catalysts supported by nanocrystalline magnesium oxide with high surface area. Alkaline supported catalysts were prepared by loading aqueous solution of K2CO3 (5-20 wt. %) into magnesium oxide and tested for the transesterification of canola oil with methanol at the reaction conditions such as the reactant feed ratio (alcohol/oil: 6/1-15/1), the reactor temperature (298, 318, 333 and 338 K), reaction time (1-8 h) and the catalyst concentration of 5 wt. % based on oil content. The catalyst with 20 wt. % K2CO3 loaded into magnesium oxide gave the highest methyl ester yield of 96.85 % which meets the purity requirement of the European biodiesel standard of EN 14103. The reusability and stability of the K2CO3 (20 %)/MgO catalyst was tested for at least three reaction cycles. About 16 % activity lost was observed at the end of third cycles.

Keywords

Magnesium oxide Transesterification Heterogeneous catalyst Biodiesel
Boz, N., & Degirmenbasi, N. (2015). Biodiesel Production from Canola Oil with Methanol in Presence of Nanocrystalline MgO-Supported Alkaline Catalysts. Asian Journal of Chemistry, 28(2), 261–266. https://doi.org/10.14233/ajchem.2016.18951
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