Biodiesel preparation, optimization, and fuel properties from non-edible feedstock, Datura stramonium L

This is a study on the feasibility of biodiesel preparation from a new and promising non-edible feedstock, Datura stramonium L. oil (DSO). First, important physical-chemical properties, such as oil content of seed (21.4 wt%), acid value (7.93 mg KOH/g) and fatty acid composition of expressed oil, were determined. Second, under the optimal two-step catalyzed reaction conditions, the maximum fatty acid methyl ester (FAME) yield (87%) and FAME content of more than 98 wt% were obtained. Furthermore, the fuel properties of DSO biodiesel were determined and evaluated. Compared with Jatrpha curcas L. (JC) and beef tallow (BT) biodiesel, DSO biodiesel possessed the best kinematic viscosity (4.33 mm(2)/s) and cold filter plug point (-5 degrees C). Based on the results, D. stramonium L. was identified as a promising species for biodiesel feedstock. (C) 2011 Elsevier Ltd. All rights reserved.

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