Alcohol recovery by continuous fermentation

Details Alcohol recovery by continuous fermentation Alcohol recovery by continuous fermentation

1989-01-17

1991-07-30

Schwartz, Richard A.

Chemistry: molecular biology and microbiology

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

Preparing oxygen-containing organic compound

435155, 435157, 435160, 435813, 435162, C12P 706, C12P 714, C12P 704, C12P 716

Patent

active

050360051

ABSTRACT:
Fuel grade ethanol is produced in continuous process employing fermentation, solvent extraction of the ethanol, extractive distillation of the ethanol-solvent extract to provide water fraction and vacuum stripping for separation of the fuel-grade ethanol and regenerated solvent.
The solvent is recycled. An isoparaffin is used as a solvent and this solvent can be modified with a long chain fatty acid, alcohol or fatty alcohol or long-chain esters. Alternatively, many modifiers may be used neat.

REFERENCES:
patent: 4399000 (1983-08-01), Tedder
patent: 4455198 (1984-06-01), Zudkevitch et al.
patent: 4559109 (1985-12-01), Lee et al.
patent: 4631115 (1986-12-01), Berg et al.
Minier, M., et al., 1982, "Ethanol Production by Extractive Fermentation", Biotechnology and Bioengineering, vol. 24, pp. 1565-1579.

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