Invention Grant
- Patent Title: Process for producing anhydrous ethanol using extractive distillation column
- Patent Title (中): 采用萃取蒸馏塔生产无水乙醇的方法
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Application No.: US13197759Application Date: 2011-08-03
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Publication No.: US08877987B2Publication Date: 2014-11-04
- Inventor: Victor J. Johnston , David Lee , Lincoln Sarager , R. Jay Warner
- Applicant: Victor J. Johnston , David Lee , Lincoln Sarager , R. Jay Warner
- Applicant Address: US TX Dallas
- Assignee: Celanese International Corportation
- Current Assignee: Celanese International Corportation
- Current Assignee Address: US TX Dallas
- Main IPC: C07C31/08
- IPC: C07C31/08 ; B01D3/40 ; B01D3/14 ; C07C29/149 ; C07C29/80 ; C07C29/84
Abstract:
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.
Public/Granted literature
- US20130035525A1 PROCESS FOR PRODUCING ANHYDROUS ETHANOL USING EXTRACTIVE DISTILLATION COLUMN Public/Granted day:2013-02-07
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