发明名称 |
REDUCING ACETALS AND/OR ESTERS DURING ETHANOL SEPARATION PROCESS |
摘要 |
<p>To reduce acetal and/or ester concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns is operated at a higher pressure to increase the equilibrium constant that favors hydrolysis of the acetal. The crude product may comprise ethanol, acetaldehyde, water, ethyl acetate and one or more acetals, such as diethyl acetal. The acetal and/or ester concentration may be reduced thus reducing the need to separate acetal and/or ester from the crude product.</p> |
申请公布号 |
WO2013019237(A1) |
申请公布日期 |
2013.02.07 |
申请号 |
WO2011US46505 |
申请日期 |
2011.08.03 |
申请人 |
CELANESE INTERNATIONAL CORPORATION;LEE, DAVID;OROSCO, ADAM;SARAGER, LINCOLN;JOHNSTON, VICTOR J. |
发明人 |
LEE, DAVID;OROSCO, ADAM;SARAGER, LINCOLN;JOHNSTON, VICTOR J. |
分类号 |
C07C29/149;C07C29/80;C07C31/08 |
主分类号 |
C07C29/149 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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