Apparatus for removing water from ethanol

Details Apparatus for removing water from ethanol Apparatus for removing water from ethanol

1987-08-25

1989-06-27

Bascomb, Wilbur

Distillation: apparatus

Apparatus

Systems

202169, 202176, 202182, 210634, 422256, 435313, 435316, B01D 314, B01D 1104, B01D 1500

Patent

active

048426938

ABSTRACT:
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.

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patent: 4349415 (1982-09-01), DeFilippi et al.
patent: 4420561 (1983-12-01), Chen
patent: 4492808 (1985-01-01), Hagen et al.
patent: 4556460 (1985-12-01), Robertson et al.
patent: 4596587 (1986-06-01), Litzenburger et al.

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