Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a residue that comprises ethanol, acetic acid, and the extractive agent. The extractive agent may be water and may be separated from the residue and returned to the extractive distillation column.
申请公布号
WO2012173647(A1)
申请公布日期
2012.12.20
申请号
WO2011US59894
申请日期
2011.11.09
申请人
CELANESE INTERNATIONAL CORPORATION;LEE, DAVID;SARAGER, LINCOLN;HORTON, TRINITY;JOHNSTON, VICTOR, J.
发明人
LEE, DAVID;SARAGER, LINCOLN;HORTON, TRINITY;JOHNSTON, VICTOR, J.