Using factorial design to increase the efficiency on a small-scale ethanol distillation




factorial design, small-scale, process optimization, ethanol distillation


This research assessed experimentally the performance of a small-scale ethanol/water distillation column. Statistical analysis was performed using Statistica® 7.0, considering a significance level of 90% (p < 0.10), to evaluate if the independent variables (feed stream ethanol concentration and flow rate) influence on the production of ethanol in accordance with the Brazilian legislation, i.e., a Hydrous Ethanol Fuel with ethanol content between 92.5 and 93.8 wt%. The results demonstrated that the influence of the feed stream ethanol concentration and flow rate were significant for both the top product concentration and the recovery ratio. The recovery ratio of ethanol was above 80%, demonstrating that the performance of the small-scale column is satisfactory.

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Author Biographies

Flávio Dias-Mayer, Federal University of Santa Maria

Department of Chemical Engineering.

Giseane Fumagalli-Schettert, Federal University of Santa Maria

Department of Chemical Engineering.

Paulo Roberto dos Santos-Salbego, Federal University of Santa Maria

Department of Chemical Engineering.

Nicholas Islongo-Canabarro, Federal University of Santa Maria

Department of Chemical Engineering.

Vanessa Baldo, Federal University of Santa Maria

Department of Chemical Engineering.

Marcio Antonio Mazutti, Federal University of Santa Maria

Department of Chemical Engineering.

Edson Luis Foletto, Federal University of Santa Maria

Department of Chemical Engineering.

Ronaldo Hoffmann, Federal University of Santa Maria

Department of Chemical Engineering.


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How to Cite

Dias-Mayer, F. ., Fumagalli-Schettert, G. ., dos Santos-Salbego, P. R., Islongo-Canabarro, N., Baldo, V., Mazutti, M. A., Foletto, E. L., & Hoffmann, R. (2016). Using factorial design to increase the efficiency on a small-scale ethanol distillation. Revista Facultad De Ingeniería Universidad De Antioquia, (78), 48–54.

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