Abstract
Biodiesel was prepared in various supercritical alcohol treatments with methanol, ethanol, 1-propanol, 1-butanol, or 1-octanol to study transesterification of rapeseed oil and alkyl esterification of fatty acid at temperatures of 300 and 350°C. The results showed that in transes terification, the reactivity was greatly correlated to the alcohol: the longer the alkyl chain of alcohol, the longer the reaction treatment. In alkyl esterification of fatty acids, the conversion did not depend on the alcohol type because they had a similar reactivity. Therefore, the selection of alcohol in biodiesel production should be based on consideration of its performance of properties and economics.
Similar content being viewed by others
References
Fukuda, H., Kondo, A., and Noda, H. (2001), J. Biosci. Bioeng. 92, 405–416.
Ma, F. and Hanna, A. M. (1999), Bioresour. Technol. 70, 1–15.
The Institute of Energy Economics, Japan. (1994), report on Research on Feasibility of Utilization of Spent Vegetable Oils as Substitutes for Petroleum-Derived Oils, (in Japanese), pp. 114–118.
Gomez, M. E. G., Hildige, R. H., Leahy, J. J., and Rice, B. (2002), Fuel 81, 33–39.
Mittelbach, M. (1996), Bioresour. Technol. 56, 7–11.
Lang, X., Dalai, K. A., Bakhshi, N. N., Reaney, J. M., and Hertz, B. P. (2001), Bioresour. Technol. 80, 53–62.
Knothe, G., Matheaus, C. A., and Ryan, W. T. (2003), Fuel 82, 971–975.
Gauglitz, E. J. and Lehman, L. W. (1963), JAOCS 40, 197–198.
Nimcevic, D., Puntigam, R., Wörgetter, M., and Gapes, R. J. (2000), JAOCS 77, 275–279.
Saka, S. and Kusdiana, D. (2001), Fuel 80, 225–231.
Kusdiana, D. and Saka, S. (2001), Fuel 80, 693–698.
Kusdiana, D. and Saka, S. (2001), Chem. Eng. Japan 34, 383–387.
Kusdiana, D., Minami, E., Ehara, K., and Saka, S. (2002), in Proceeding of 12 th European Biomass Conference, James & James (Science Publishers), London, UK, pp. 789–792.
Tanaka Scientific (2003), Mini-Pour/Cloud Point Tester, Instruction Manual, Ver. 1.01, Tokyo, Japan.
Freedman, B., Butterfield R. O., and Pryde, E. H. (1986), JAOCS 63, 1375–1380.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Warabi, Y., Kusdiana, D. & Saka, S. Biodiesel fuel from vegetable oil by various supercritical alcohols. Appl Biochem Biotechnol 115, 793–801 (2004). https://doi.org/10.1385/ABAB:115:1-3:0793
Issue Date:
DOI: https://doi.org/10.1385/ABAB:115:1-3:0793