The transesterification of soybean oil to fatty acid methyl esters was studied using a calcined Li–Al layered double hydroxide catalyst. The catalyst exhibited high activity, with near quantitative oil conversion being obtained under mild conditions (reflux temperature of methanol) and short reaction times (≤ 4 h). The influence of relevant parameters (catalyst calcination temperature, methanol to oil mole ratio, catalyst charge and reaction duration) was examined.
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Acknowledgments
The authors thank Gerald Thomas for performing the XRD and ICP-OES measurements and Tonya Morgan for performing the thermogravimetric analysis. The Kentucky Office of Energy Policy is thanked for providing funding for this work.
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Shumaker, J.L., Crofcheck, C., Tackett, S.A. et al. Biodiesel production from soybean oil using calcined Li–Al layered double hydroxide catalysts. Catal Lett 115, 56–61 (2007). https://doi.org/10.1007/s10562-007-9071-3
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DOI: https://doi.org/10.1007/s10562-007-9071-3