کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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207147 | 461208 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Roselle (Hibiscus sabdariffa L.) oil as an alternative feedstock for biodiesel production in Thailand Roselle (Hibiscus sabdariffa L.) oil as an alternative feedstock for biodiesel production in Thailand](/preview/png/207147.png)
The production of biodiesel fuel from crude roselle oil was evaluated in this study. The process of alkali-catalyzed transesterification with methanol was carried out to examine the effects of reaction variables on the formation of methyl ester: variables which included methanol-to-oil molar ratios of 4:1–10:1, catalyst concentrations of 0.25–2.0% w/w of oil, reaction temperatures of 32–60 °C, and reaction times of 5–80 min. The methyl ester content from each reaction condition was analyzed by gas chromatography (GC), the optimum condition having been achieved at a methanol-to-oil molar ratio of 8:1, a catalyst concentration of 1.5% w/w of oil, a reaction temperature of 60 °C, and a reaction time of 60 min. The resultant methyl ester content of 99.4% w/w, plus all of the other measured properties of the roselle biodiesel, met the Thai biodiesel (B100) specifications and international standards EN 14214:2008 (E) and ASTM D 6751-07b, with the exception of a higher carbon residue and lower oxidation stability.
Journal: Fuel - Volume 89, Issue 8, August 2010, Pages 1806–1811