Invention Grant
- Patent Title: Processes for producing anhydrous ethanol compositions
- Patent Title (中): 无水乙醇组合物的制备方法
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Application No.: US12903756Application Date: 2010-10-13
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Publication No.: US08541633B2Publication Date: 2013-09-24
- Inventor: Trinity Horton , Radmila Jevtic , Victor J. Johnston , Lincoln Sarager , R. Jay Warner , Gerald Grusendorf
- Applicant: Trinity Horton , Radmila Jevtic , Victor J. Johnston , Lincoln Sarager , R. Jay Warner , Gerald Grusendorf
- Applicant Address: US TX Dallas
- Assignee: Celanese International Corporation
- Current Assignee: Celanese International Corporation
- Current Assignee Address: US TX Dallas
- Main IPC: C07C29/149
- IPC: C07C29/149

Abstract:
In one embodiment, the present invention is to a process for producing a anhydrous ethanol composition comprising hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; separating in a first column at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating in a second column at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating in a third column at least a portion of the second residue into a third distillate comprising ethanol and residual water and a third residue comprising separated water; and dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition. The anhydrous ethanol composition, as formed, comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition.
Public/Granted literature
- US20110190550A1 PROCESSES FOR PRODUCING ANHYDROUS ETHANOL COMPOSITIONS Public/Granted day:2011-08-04
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