Abstract
This paper discusses the synthesis of biodiesel catalyzed by solid base of K2CO3/HT using Jatropha curcas oil as feedstock. Mg–Al hydrotalcite was prepared using co-precipitation methods, in which the molar ratio of Mg to Al was 3:1. After calcined at 600 °C for 3 h, the Mg–Al hydrotalcite and K2CO3 were grinded and mixed according to certain mass ratios, in which some water was added. The mixture was dried at 65 °C, and after that it was calcined at 600 °C for 3 h. Then, this Mg–Al hydrotalcite loaded with potassium carbonate was obtained and used as catalyst in the experiments. Analyses of XRD and SEM characterizations for catalyst showed the metal oxides formed in the process of calcination brought about excellent catalysis effect. In order to achieve the optimal technical reaction condition, five impact factors were also investigated in the experiments, which were mass ratio, molar ratio, reaction temperature, catalyst amount and reaction time. Under the best condition, the biodiesel yield could reach up to 96%.
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Acknowledgment
The authors are grateful to National High Technology Research and Development Program of China (No.2009AA03Z222 and No.2009AA05Z437) and “Six Talents Pinnacle Program” (No.2008028) of Jiangsu Province of China for financial support.
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Teng, G., Gao, L., Xiao, G. et al. Biodiesel Preparation from Jatropha curcas Oil Catalyzed by Hydrotalcite Loaded With K2CO3 . Appl Biochem Biotechnol 162, 1725–1736 (2010). https://doi.org/10.1007/s12010-010-8953-9
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DOI: https://doi.org/10.1007/s12010-010-8953-9