04842693 is referenced by 111 patents and cites 12 patents.

A method and apparatus for removing water from a liquid mixture of water and ethanol contacts it with liquid carbon dioxide so that the ethanol is preferentially transferred into solution, dries the solution using an adsorbent, and then recovers dry ethanol by distilling off the carbon dioxide. This process is particularly energy efficient especially when it includes a fermentation process to generate the ethanol and uses the carbon dioxide generated during the fermentation as the source of liquid carbon dioxide. In this case the method and apparatus provide an additional product of dry carbon dioxide.

Title
Apparatus for removing water from ethanol
Application Number
4447
Publication Number
4842693
Application Date
August 25, 1987
Publication Date
June 27, 1989
Inventor
Alfred G Wheldon
Essex
GB
Agent
Sughrue Mion Zinn Macpeak and Seas
Assignee
The Distillers Company
GB
IPC
B01D 15/00
B01D 11/04
B01D 3/14
View Original Source