Alcohol Recovery By Continuous Fermentation
Tedder, Daniel W.
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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.
- Georgia Tech Patents