Production of concentrated alcohol and distillery slop

Distillation: apparatus – Apparatus – Systems

Patent

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Details

159 24B, 202155, 202174, 202235, 202236, B01D 126, B01D 128, B01D 302, B01D 314

Patent

active

043812201

ABSTRACT:
Concentrated alcohol and distillery slop are produced from fermented beer with a reduced amount of energy by employing a vapor recompression distillery slop evaporator in which evaporator vapors are used to strip alcohol from the fermented liquor before they are returned as the heat source for evaporation. Vents in the evaporator permit passage of uncondensed vapors used to drive the evaporator to a rectifier, in which they constitute the principal heat and alcohol source. Condensed vapors from the evaporator and the bottom stream from the rectifier are stripped of their remaining alcohol content in a condensate stripper, which is also driven by the recompressed vapors from the evaporator. This prevents dilution of the slops and the additional energy cost that would be necessary if the water content of these streams had to be removed in the slop evaporator.

REFERENCES:
patent: 1427888 (1922-09-01), Winter

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