Dehydration of ethanol

Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound

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203 18, 203 41, 203 49, 203 81, 203 98, 203DIG11, 203DIG13, 435161, B01D 302, B01D 5304, C07C 2980

Patent

active

045564604

ABSTRACT:
A process and apparatus for dewatering an ethanol-water solution is disclosed wherein a carrier gas is used to vaporize the solution and transport the vapors to a sorbent where water is sorbed in preference to ethanol. The invention is particularly suited for small-scale production of fuel-grade ethanol for blending with gasoline.

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patent: 4407662 (1983-10-01), Ginder
L. W. Carley: How to Make Your Own Alcohol Fuels; Aug. 1980, pp. 73-83.
"New Ethanol Route Wears a Low-Energy Label," Chemical Engineering, vol. 87, p. 103 (1980).
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R. Katzen, "Low Energy Distillation Systems," Proceedings, Bio-Energy '80, World Congress and Exposition, Apr. 21-24, (1980), The Georgia World Congress Center, Atlanta, Ga., pp. 422-423.
J. H. Rodriquez-Arias et al., "Heat of Vaporization for Shelled Corn", Cereal Chemistry, vol. 40(6), pp. 676-683 (1963).
D. S. Chung et al., "Adsorption and Desorption of Water Vapor by Cereal Grains and Their Products, Part I," Transactions of the American Society of Agricultural Engineers, vol. 10, pp. 549-555 (1967).

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