Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a first residue that comprises ethanol, ethyl acetate, acetic acid, water, and the extractive agent(s). The first residue is separated in a second column to yield a second distillate comprising ethanol and ethyl acetate. The second distillate is then separated in a third column to yield a third distillate comprising ethyl acetate and a third residue comprising ethanol.
申请公布号
WO2012149148(A1)
申请公布日期
2012.11.01
申请号
WO2012US35196
申请日期
2012.04.26
申请人
CELANESE INTERNATIONAL CORPORATION;WARNER, R., JAY;JOHNSTON, VICTOR, J.;LEE, DAVID;OROSCO, ADAM
发明人
WARNER, R., JAY;JOHNSTON, VICTOR, J.;LEE, DAVID;OROSCO, ADAM