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 transesterification, 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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Warabi, Y., Kusdiana, D., & Saka, S. (2004). Biodiesel fuel from vegetable oil by various supercritical alcohols. In Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology (Vol. 115, pp. 793–801). Humana Press. https://doi.org/10.1007/978-1-59259-837-3_64
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