Biodiesel fuel from vegetable oil by various supercritical alcohols |
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Authors: | Yuichiro Warabi Dadan Kusdiana Shiro Saka |
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Institution: | 1. Graduate School of Energy Science, Kyoto University, Yoshida-honmachi, Sakyo-ku, 606-8501, Kyoto, Japan
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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. |
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