Extractive Distillation Process for the Production of Highly Purified Ethanol from Aqueous Solution using Dimethyl Sulfoxide and Ethylene Glycol 


Vol. 22,  No. 4, pp. 241-249, Dec.  2016
10.7464/ksct.2016.22.4.241


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  Abstract

In this study, comparative work has been performed between two-columns and three-columns configurations for an extractive distillation process to produce highly purified ethanol with not less than 99.7 wt% using dimethyl sulfoxide (DMSO) and ethylene glycol (EG) as extracting agents. Optimal ethanol concentration at a concentrator top stream which minimized the total reboiler heat duties was determined for a three-columns configuration for two different solvents. For the thermodynamic model, NRTL liquid activity coefficient model was used and PRO/II with PROVISION 9.4 at Schneider electric company was utilized. DMSO was proved to be a better solvent than EG and three-columns configuration is better than two- columns configuration in the total utility consumptions since some of the liquid water contained in the feed stream was removed at a concentrator bottom liquid stream.

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  Cite this article

[IEEE Style]

N. SG, "Extractive Distillation Process for the Production of Highly Purified Ethanol from Aqueous Solution using Dimethyl Sulfoxide and Ethylene Glycol," Clean Technology, vol. 22, no. 4, pp. 241-249, 2016. DOI: 10.7464/ksct.2016.22.4.241.

[ACM Style]

Noh SG. 2016. Extractive Distillation Process for the Production of Highly Purified Ethanol from Aqueous Solution using Dimethyl Sulfoxide and Ethylene Glycol. Clean Technology, 22, 4, (2016), 241-249. DOI: 10.7464/ksct.2016.22.4.241.

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