Low energy process of producing gasoline-ethanol mixtures

Details Low energy process of producing gasoline-ethanol mixtures Low energy process of producing gasoline-ethanol mixtures

1980-01-23

1981-10-27

Sever, Frank

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

44 53, 44 56, 203 44, B01D 314, C07C 2926, C07C 3108

Patent

active

042971721

ABSTRACT:
Gasoline-ethanol mixtures useable as motor fuel are produced by a relatively low energy process comprising interrelated distillation and extraction steps. In the first step, aqueous ethanol, such as an ethanol fermentation beer, is subjected to fractional distillation to produce a distillate of at least 75 weight percent ethanol, which is then subjected to extraction with gasoline under conditions producing an extract containing the desired amount of ethanol, such as 8 to 14% by weight. The aqueous phase raffinate from the extraction is returned to the fractionation column for redistillation.

REFERENCES:
patent: 2402077 (1946-06-01), Patterson
patent: 2591672 (1952-04-01), Catterall

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