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ZEOLITES FOR SEPARATION OF ETHANOL AND WATER

United States Patent Application

20170203233
A1
View the Complete Application at the US Patent & Trademark Office
A process for separating ethanol from a mixture including ethanol and water comprises contacting the mixture with a sorbent or membrane including one or more zeolites having a high adsorption selectivity toward ethanol over water, wherein at least a fraction of the ethanol from the mixture is adsorbed by the sorbent or membrane and an unadsorbed portion of the mixture forms a raffinate having a lower concentration of ethanol than the mixture. The process further includes releasing adsorbed ethanol from the sorbent or membrane as a retentate or a permeant to produce an ethanol extract having a higher concentration of ethanol than the mixture.
Siepmann, Joern Ilja (Hastings, MN), Bai, Peng (Minneapolis, MN), Tsapatsis, Michael (Minneapolis, MN)
15/ 327,722
July 22, 2015
GOVERNMENT FUNDING [0002] This invention was made with government support under DE-FG02-12ER16362 awarded by Department of Energy. The government has certain rights in the invention.