Patent ID: 8653308
Filing Date: 2014-02-18
Classification: B01J,C01B,C07C,Y02P

Abstract:
1. A process for producing a water stream, comprising the steps of: hydrogenating acetic acid in a reactor in the presence of a catalyst to form a crude ethanol product; separating at least a portion of the crude ethanol product in a first column into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating at least a portion of the first distillate in a second column into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating at least a portion of the second residue in a third column into a third distillate comprising ethanol and a third residue; hydrolyzing at least a portion of the second distillate with at least a portion of the third residue, wherein the third residue comprises: