发明授权
- 专利标题： Process for producing anhydrous ethanol using extractive distillation column
- 专利标题（中）： 采用萃取蒸馏塔生产无水乙醇的方法
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申请号： US13197759申请日： 2011-08-03
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公开(公告)号： US08877987B2公开(公告)日： 2014-11-04
- 发明人: Victor J. Johnston , David Lee , Lincoln Sarager , R. Jay Warner
- 申请人： Victor J. Johnston , David Lee , Lincoln Sarager , R. Jay Warner
- 申请人地址： US TX Dallas
- 专利权人： Celanese International Corportation
- 当前专利权人： Celanese International Corportation
- 当前专利权人地址： US TX Dallas
- 主分类号： C07C31/08
- IPC分类号： C07C31/08 ; B01D3/40 ; B01D3/14 ; C07C29/149 ; C07C29/80 ; C07C29/84
摘要：
The present invention relates to the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol product are employed to allow recovery of an anhydrous ethanol composition. The process involves separating the crude ethanol product using one or more extractive distillation columns that employ one or more extractive agents. The anhydrous ethanol composition comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition.
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