Process of concentrating ethanol from dilute aqueous solutions thereof [electronic resource].
- Ames, Iowa : Ames Laboratory, 1981.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: (10 unnumbered pages) : digital, PDF file
- Additional Creators:
- Ames Laboratory
United States. Department of Energy. Office of Scientific and Technical Information
- Relatively dilute aqueous solutions of ethanol are concentrated by passage through a bed of a crystalline silica polymorph, such as silicalite, to adsorb the ethanol with residual dilute feed in contact with the bed, which is displaced by passing concentrated aqueous ethanol through the bed without displacing the adsorbed ethanol. A product concentrate is then obtained by removing the adsorbed ethanol from the bed together with at least a portion of the concentrated aqueous ethanol used as the displacer liquid. This process permits ethanol to be concentrated from dilute fermentation beers, which may contain from 6 to 10% ethanol, to obtain a concentrate product at very low energy cost having an ethanol concentration in excess of 95%, such as a concentration of from 98 to 99.5%.
- Published through SciTech Connect.
"US patent application 06/162,524"
Oulman, Charles S.; Chriswell, Colin D.
- Funding Information:
View MARC record | catkey: 13820140