Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound
Patent
1987-10-01
1989-05-30
Bascomb, Wilbur
Distillation: processes, separatory
Distilling to separate or remove only water
From organic compound
203 25, 203 27, 203 41, 203100, 203DIG8, 203DIG13, 55 97, 55269, 126300, 202176, 202202, 210673, 210677, 568916, B01D 314, B01D 500, B01D 1500, C07C 2980
Patent
active
048348414
ABSTRACT:
The improved method and apparatus treats the stack gases from a commercial bakery oven to remove and recover pollutants, specifically ethyl alcohol. The method includes the steps of cooling the stack gases and passing the cooled gases through a packed column to condense the water and ethyl alcohol and if the ethyl alcohol is to be recovered drying the ethyl alcohol by distillation and by absorption of the water therefrom by a molecular sieve. The apparatus includes blowers and controls to maintain the normal flow of gases from the oven so that the removal and recovery of the ethyl alcohol from the stack gases does not interfere or change the baking conditions of the oven. This may be accomplished by a system of dampers or by controlling the discharge rate of the blowers used.
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