Production of ethanol

Details Production of ethanol Production of ethanol

1980-02-22

1982-11-09

Bascomb, Jr., Wilbur L.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

202153, 202174, 203 19, 203 25, 203 26, 203 47, 203 74, 203 75, 203 76, 203 82, 203 83, 203 84, 203 85, 203DIG13, 426 11, 426494, B01D 316, C07C 2980, C12P 706

Patent

active

043585361

ABSTRACT:
A flow of fermenting liquor from a fermentor is separated into a yeast concentrate flow, which is recirculated to the fermentor, and a yeast-free flow which is separated in a simple evaporator unit into a first ethanol-enriched vapor flow and a first liquid bottom flow. The first vapor flow is treated to produce the desired ethanol while a major part of the first liquid bottom flow is recirculated to the fermentor. A minor, residual part of the latter flow is fed to a stripping unit where it is separated into a second ethanol-enriched vapor flow and a second liquid bottom flow exhausted of ethanol.

REFERENCES:
patent: 504074 (1893-08-01), Bradley
patent: 1912010 (1933-05-01), Ricardi et al.
patent: 2010929 (1935-08-01), Reich
patent: 2127138 (1938-08-01), Reich
patent: 2152164 (1939-03-01), Wentworth
patent: 2155134 (1939-04-01), Karsch
patent: 2358272 (1944-09-01), Willkie
patent: 2372854 (1945-04-01), Reich
patent: 2440925 (1948-05-01), Boeckeler
patent: 2698826 (1955-01-01), Peltzer
patent: 2892757 (1959-06-01), Markham
patent: 3884770 (1975-05-01), Misselhorn

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