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Vol. 26 No. 20 (2014)

Copyright (c) 2014 Y.R. Lee, B. Tang, W. Bi, K.H. Row*

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Purification of Bioethanol by Ionic Liquid Additives in Distillation System

https://doi.org/10.14233/ajchem.2014.16799
Y.R. Lee
Department of Chemistry and Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea *Corresponding author: Tel: +82 32 860 7470; Fax: +82 32 872-0959; E-mail: rowkho@inha.ac.kr
B. Tang
Department of Chemistry and Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea *Corresponding author: Tel: +82 32 860 7470; Fax: +82 32 872-0959; E-mail: rowkho@inha.ac.kr
W. Bi
Department of Chemistry and Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea *Corresponding author: Tel: +82 32 860 7470; Fax: +82 32 872-0959; E-mail: rowkho@inha.ac.kr
K.H. Row*
Department of Chemistry and Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea *Corresponding author: Tel: +82 32 860 7470; Fax: +82 32 872-0959; E-mail: rowkho@inha.ac.kr

Corresponding Author(s) : Y.R. Lee

Asian Journal of Chemistry, Vol. 26 No. 20 (2014)

Abstract

This study examined the potential use of ionic liquid (IL) as additives for the distillation of bioethanol from bioethanol-water mixture and applied an optimized distillation system to the purification of bioethanol from plant fermentation broths. Among the 9 ionic liquids added to the distillation system, [OMIM][BF4] has the greatest effect on the purification of ethanol from aqueous solutions. In addition, the amount of [OMIM][BF4], the initial concentration of ethanol in the mixture and the distillate fractions in the distillation system were studied systematically. Under the optimization distillation system using 2 g of [OMIM][BF4], 20 mL of a 99.4 % (ethanol, v:v) aqueous solution was distilled from 100 mL of a 20 % (bioethanol, v:v) bioethanol-water mixture and the boiling point (71 °C) was lower than that of the bioethanol-water azeotrope.

Keywords

Bioethanol Distillation Ionic liquid Purification.
Lee, Y., Tang, B., Bi, W., & Row*, K. (2014). Purification of Bioethanol by Ionic Liquid Additives in Distillation System. Asian Journal of Chemistry, 26(20), 6797–6800. https://doi.org/10.14233/ajchem.2014.16799
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