IJSEA Archive (Volume 7, Issue 8)
International Journal of Science and Engineering Applications (IJSEA) (Volume 7, Issue 8 August 2018)
Dehydration of Aqueous Ethanol Mixtures By Extractive Distillation
Keywords: anhydrous ethanol; ethylene glycol; calcium chloride; extractive distillation; concentration
This paper investigate the dehydration of ethanol by extractive distillation process with salt in solvent and also without salt. There are many sources to produce ethanol. It can be obtained from plants and agricultural wastes as well as olefins from cracking units of petroleum refining. Because the methods of ethanol production are the hydration method and fermentation, water molecules are present in ethanol. It has to be dehydrated to use as a fuel in automobile engines and other applications. There are many methods to separate water from ethanol to improved concentration. In this paper, the dehydration of ethanol is carried out by extractive distillation process and use ethylene glycol as a separating agent with calcium chloride as salt in order to improve the concentration of ethanol. Different ratios of ethanol-water and ethylene glycol such as (1:1:0, 1:1:0.25, 1:1:0.25 (20% of solvent)) were tested to obtain the best result of concentration percent. The maximum ethanol concentration was 92 vol% which obtained from 52 vol% ethanol in feed mixture.
 D. J. O'Brien, J. C. Craig Jr. "Ethanol Production in a Continuous Fermentation/Membrane Pervaporation System", U.S. Department of Agriculture, Eastern Research Center, Philadelphia, USA, 1996.
 Avinash K. Agarwal. Ashok Pandey Ashwani K. Gupta. Suresh K. Aggarwal Abhijit Kushari Editors, "Novel Combustion Concepts for Sustainable Energy Development", Springer India 2014.
 Walker, Graeme M., "Bioethanol: Science and Publishing Aps, (2010).
 Jones, J.C., "Atmospheric Pollution, "Ventus Publishing Aps,(2008)
 Tassios D. P., "Extractive and Azeotropic Distillation, "American Chemical Society, Washington, D.C, 1972.
 Badger W. L., Banchero Julius T.," Introduction to Chemical Engineering," International Student Edition, McGraw-Hill Book Company, Inc, 1955
 Jones, J.C., "Hydrocarbons: Physical Properties and their Relevance to Utilization, "Jones & Ventus Publishing Aps, (2010)
 Krell Erich., "Handbook of laboratory Distillation," Elsevier Scientific Publishing Company, Amsterdam, 1982.
 Wikipedia.,"Ethanol,"http://en.wikipedia.org/wiki/Ethanol Fuel.
 Wikipedia.,"Ethanol Fuel, "http://en.wikipedia.org/wiki/Ethanol Fuel
 Wikipedia.,"Gasoline,"http://en.wikipedia.org/wiki/ Gasoline.
 Wikipedia., "Number of plates, "http://en.wikipedia.org/wiki/Number of Plates.
 Wikipedia.,"McCabe Thiele Method, "http://en.wikipedia.org/wiki/ McCabeThiele Method.
 Wikipedia.,"Reflux,""http://en.wikipedia.org/wiki/ Reflux.
title = "Dehydration of Aqueous Ethanol Mixtures By Extractive Distillation ",
journal = "International Journal of Science and Engineering Applications (IJSEA)",
volume = "7",
number = "8",
pages = "162 - 165 ",
year = "2018",
author = " Thu Zar Thein , Wai Mar Htway , Win Ei Ei Tun ",