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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received October 20, 2014
Accepted November 6, 2015
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Pilot-scale study on dehydration of synthetic and lignocellulosic ethanol by NaA membrane

1Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, 1000 Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan County 325, Taiwan, ROC 2Department of Chemical and Materials Engineering, National Central University, Taoyuan 320, Taiwan, ROC 3, Taiwan 4Green Technology Research Institute, CPC Corporation, Taiwan, 2 Tsuo-Nan Rd., Kaohsiung 811, Taiwan, ROC
hwajou@iner.gov.tw
Korean Journal of Chemical Engineering, April 2016, 33(4), 1362-1368(7), 10.1007/s11814-015-0228-2
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Abstract

A pilot scale vapor permeation unit was assembled to study the dehydration of bioethanols with NaA membrane. The operational parameters, such as feed concentration, temperature, and downstream pressure in permeate, were varied. Long-term operation of an ethanol dehydration unit was demonstrated. Additionally, the lingocellulosic ethanol distillate was dehydrated to fuel grade ethanol with less than 1% water content. The changes in impurities, such as methanol, ethylacetate, 2-propanol, 1-propanol, 1-butanol, and Isoamyl alcohol, were dependent on the volatility of the compounds. The ethanol concentrations in the permeate stream were lower than 1%, indicating high separation performance of the membrane system.

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