Inert-gas stripping and distillation apparatus
First Claim
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1. A distillation apparatus comprising:
- distillation means;
first condenser means connected to the distillation means for condensing a product from a carrier gas;
circulation means for circulating the carrier gas through the distillation means and the first condenser means, the carrier gas carrying the product from the distillation means to the first condenser means;
fermentation means for producing a product-containing slurry;
first conduit means for delivering the product-containing slurry from the fermentation means to the distillation means;
second condenser means connected to the fermentation means for recovering gases generated in the fermentation means;
second conduit means for delivering the gases recovered in the second condenser means to the circulation means for use as at least a part of the carrier gas;
andfirst removal means for removing the product from the first condenser means.
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Abstract
A distillation/evaporation/drying apparatus wherein alcohol is removed by a dry, warm carrier gas from an alcohol-containing slurry from a fermenter. Carbon dioxide from the fermenter is used as the carrier gas and is suitably dried, warmed and recycled into contact with the slurry to assist in removing alcohol therefrom. The apparatus includes a reflux section to upgrade the alcohol content of the carrier gas.
31 Citations
9 Claims
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1. A distillation apparatus comprising:
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distillation means; first condenser means connected to the distillation means for condensing a product from a carrier gas; circulation means for circulating the carrier gas through the distillation means and the first condenser means, the carrier gas carrying the product from the distillation means to the first condenser means; fermentation means for producing a product-containing slurry; first conduit means for delivering the product-containing slurry from the fermentation means to the distillation means; second condenser means connected to the fermentation means for recovering gases generated in the fermentation means; second conduit means for delivering the gases recovered in the second condenser means to the circulation means for use as at least a part of the carrier gas; and first removal means for removing the product from the first condenser means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for the recovery of alcohol from a fermenting material comprising:
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fermentation means for producing an alcohol-containing slurry; a distillation column having a lower, stripping section and an upper, rectifying section, said stripping section having a plurality of downwardly slanted baffles; first conduit means for delivering the alcohol-containing slurry from the fermentation means to the distillation column; a first condenser connected to the distillation column for condensing alcohol from a carrier gas; circulation means for circulating the carrier gas through the distillation column and first condenser, the carrier gas carrying the product from the distillation column to the first condenser; a second condenser connected to the fermentation means for recovering carbon dioxide generated in the fermentation means; second conduit means for delivering the carbon dioxide recovered in the second condenser to the circulation means for use as at least a part of the carrier gas; and first removal means for removing the product from the first condenser. - View Dependent Claims (9)
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Specification