Method of processing fermented liquid
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United States of America Patent
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Jul 15, 1986
Issued Date -
N/A
app pub date -
Oct 25, 1985
filing date -
Oct 29, 1982
priority date (Note) -
Expired
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Abstract
A method of processing fermented liquid comprising (a) feeding said fermented liquid into a vacuum vaporizer, (b) heating the feed in said vaporizer to separate it into a vapor and a concentrated liquid fraction, (c) recycling said vapor to said vaporizer by compression so as to achieve heat-exchange with said feed therein thereby generating a new vapor and a condensate fraction; said condensate being discharged as a distillate, (d) supplying the remaining compressed vapor to a multistage distilling column, (e) separating said compressed vapor into two fractions, one with a higher boiling point than the other, within said distilling column, (f) condensing said distillate with the lower boiling point to yield an alcohol-rich distillate, and (g) discharging said fraction with the higher boiling point as a bottom residue, and a processor therefor, thereby discharging to the outside the low COD-liquid alone and recovering useful substances such as drinkable alcohol, livestocks feed and antibiotic substances.
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