Continuous Production of Lipase-Catalyzed Biodiesel in a Packed-Bed Reactor: Optimization and Enzyme Reuse StudyReport as inadecuate




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Journal of Biomedicine and BiotechnologyVolume 2011 2011, Article ID 950725, 6 pages

Research Article

Department and Graduate Program of Bioindustry Technology, Dayeh University, Chang-Hua 515, Taiwan

Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan

Derlin Biotech Corporation Ltd., Yun-Lin 640, Taiwan

Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan

Received 29 June 2010; Accepted 2 September 2010

Academic Editor: Nico Boon

Copyright © 2011 Hsiao-Ching Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An optimal continuous production of biodiesel by methanolysis of soybean oil in a packed-bed reactor was developed using immobilized lipase Novozym 435 as a catalyst in a tert-butanol solvent system. Response surface methodology RSM and Box-Behnken design were employed to evaluate the effects of reaction temperature, flow rate, and substrate molar ratio on the molar conversion of biodiesel. The results showed that flow rate and temperature have significant effects on the percentage of molar conversion. On the basis of ridge max analysis, the optimum conditions were as follows: flow rate 0.1 mL-min, temperature , and substrate molar ratio 1 : 4. The predicted and experimental values of molar conversion were % and %, respectively. Furthermore, the continuous process over 30 days showed no appreciable decrease in the molar conversion. The paper demonstrates the applicability of using immobilized lipase and a packed-bed reactor for continuous biodiesel synthesis.





Author: Hsiao-Ching Chen, Hen-Yi Ju, Tsung-Ta Wu, Yung-Chuan Liu, Chih-Chen Lee, Cheng Chang, Yi-Lin Chung, and Chwen-Jen Shieh

Source: https://www.hindawi.com/



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