Patent ID: 9068700
Filing Date: 2015-06-30
Classification: B01D,F17D,Y02C,Y02P,Y10T

Abstract:
1. A method of depressurizing a molecular sieve used in ethanol production comprising: providing an ethanol production system, said ethanol production system including a plurality of on-line molecular sieve columns for removing water from said ethanol production, said molecular sieve columns having a product input end and a product discharge end and including a media therewithin; taking at least one of said plurality of molecular sieve columns off-line to depressurize it when said media becomes saturated, said off-line molecular sieve column containing anhydrous ethanol located at the product discharge end and water in the remainder of the bottle; extracting at least a portion of said anhydrous ethanol from said product discharge end; routing said at least a portion of said anhydrous ethanol to a sweeten off condenser; discharging said at least a portion of said anhydrous ethanol to a flash vessel; combining said at least a portion of said anhydrous ethanol with other anhydrous ethanol produced by said ethanol production system; and routing said combination of anhydrous ethanol to a storage tank.