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http://dx.doi.org/10.12925/jkocs.2010.27.4.5

Conversion of Vegetable Oils and Mixed Fat into Biodiesel Using $Al_2O_3$-Supported CaO Catalyst  

Hyun, Young-Jin (Department of Chemical & Life Science Engineering, Jeju Nation'l University)
Publication Information
Journal of the Korean Applied Science and Technology / v.27, no.4, 2010 , pp. 421-426 More about this Journal
Abstract
The transesterification of rapeseed oil, soybean oil, and mixed fat were conducted at $65^{\circ}C$ with $Al_2O_3$-supported CaO, 0.8 wt% KOH, 1 wt% NaOH and mixed catalyst. The overall conversion(%) of rapeseed oil indicated to be 96% at the 12:1 molar ratio of methanol to oil, 8 wt% CaO and 2 wt% water. The pH ranges of biodiesel for mixed fat using four catalysts and for three fats using 8wt% CaO were 7.3-9.1, 7.3-7.5, respectively. The volumes of water needed to wash biodiesel from rapeseed oil using 0.8 wt% KOH and 8 wt% CaO were 15 mL and 3 mL.
Keywords
transesterification; $Al_2O_3$-supported CaO; 12:1 molar ratio; 8 wt% CaO and 2 wt% water; pH ranges; volumes; water; wash;
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