Batch (one- and two-stage) production of biodiesel fuel from rapeseed oil |
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Authors: | Gwi-Taek Jeong and Don-Hee Park |
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Institution: | (1) School of Biological Sciences and Technology, Chonnam National University, 500-757 Gwangju, Korea;(2) Faculty of Applied Chemical Engineering, Chonnam National University, 500-757 Gwangju, Korea;(3) Research Institute for Catalysis, Chonnam National University, 500-757 Gwangju, Korea;(4) Biotechnology Research Institute, Chonnam National University, 500-757 Gwangju, Korea;(5) Institute of Bioindustrial Technology, Chonnam National University, 500-757 Gwangju, Korea |
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Abstract: | Biodiesel fuel is an alternative and renewable energy source, which may help to reduce air pollution, as well as our dependence
on petroleum for energy. Several processes have already been developed for the production of biodiesel. Alkali-catalyzed transesterification
with short-chain alcohols, for example, generates high yields of methyl esters in short reaction times. In this study, we
have evaluated the efficacy of batch (one- and two-stage) transesterification of rapeseed oil in the production of rapeseed
methyl ester. The conversion of rapeseed oil exhibited similar reaction patterns and yields in 30- and 1-L reaction systems.
Approximately 98% of the rapeseed oil was converted at 400 rpm within 20 min, under the following conditions: 1% (w/w) KOH,
1∶10 methanol molar ratio, and at 60°C. In the 30-L, two-stage transesterification process, approx 98.5% of the rapeseed oil
was converted at a 1∶4.5 molar ratio and 1% (w/w) KOH at 60°C for 30 min (first reaction condition), and at a 1∶1 molar ratio
and 0.2% (w/w) KOH at 60°C for 30 min (second reaction condition). |
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Keywords: | Biodiesel fuel transesterification rapeseed oil two stage |
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