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Application of Energy-Efficient Distillation System in Ethanol Process  

Lee, Moon Yong (Department of Chem. Eng., Yungnam University)
Kim, Young Han (Department of Chem. Eng., Dong-A Univ.)
Publication Information
Korean Chemical Engineering Research / v.46, no.5, 2008 , pp. 892-897 More about this Journal
Abstract
A new ethanol dehydration process utilizing a thermally coupled distillation column is proposed to reduce the energy requirement of the existing dehydration processes. An entrainer of benzene is used in the proposed system having the column profile similar to the equilibrium composition profile for the maximum distillation column efficiency, and the feed composition is arranged to close to the boundary of different distillation regions. It is found that the proposed distillation system gives some 18% of energy saving over the existing process. In addition, design guidelines are suggested for other azeotropic distillation process.
Keywords
Energy-Efficient Distillation; Thermally Coupled Distillation; Ethanol Concentration; Distillation Column Design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Font, A., Asensi, J. C., Ruiz, F. and Gomis, V., "Application of Isooctane to the Dehydration of Ethanol. Design of a Column Sequence to Obtain Absolute Ethanol by Heterogeneous Azeotropic Distillation," Ind. Eng. Chem. Res., 42(1), 140-144(2003)   DOI   ScienceOn
2 Chang, J. H., Yoo, J. K., Ahn, S. H., Lee K. H. and Ko, S. M., "Simulation of Pervaporization Process for Ethanol Dehydration by Using Pilot Test Results," Korean J. Chem. Eng., 15(1), 28-36(1998)   DOI
3 Luyben, W. L., "Control of a Multiunit Heterogeneous Azeotropic Distillation Process," AIChE J., 52(2), 623-637(2006)   DOI   ScienceOn
4 Patil, M. B., Veerapur, R. S., Patil, S. A., Madhusoodana, C. D. and Aminabhavi, T. M., "Preparation and Characterization of Filled Matrix Membranes of Sodium Alginate Incorporated with Aluminum-Containing Mesoporous Silica for Pervaporization Dehydration of Alcohols," Sep. Purif. Tech., 54(1), 34-43(2007)   DOI   ScienceOn
5 Gimenes, M. L., Liu, L. and Feng, X. S., "Sericin/poly(vinyl aclcohol) Blend Membranes for Pervaporization Separation of Ethanol/Water Mixtures," J. Membrane Sci., 295(1-2), 71-79(2007)   DOI   ScienceOn
6 Gomis, V., Pedraza, R., Frances, O., Font, A. and Asensi, J. C., "Dehydration of Ethanol Using Azeotropic Distillation with Isooctane," Ind. Eng. Chem. Res., 46(13), 4572-4576(2007)   DOI   ScienceOn
7 Cho, J., Park, J. and Jeon, J. K., "Comparison of Three- and Two-Column Configurations in Ethanol Dehydration Using Azeotropic Distillation," J. Ind. Eng. Chem., 12(2), 206-215(2006)