Esterifying an ethanol and acetic acid mixture to produce an ester feed for hydrogenolysis
US8853470B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 20, 2012 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/0201
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein are processes for alcohol production by hydrogenating acetic acid to obtain a mixture of ethanol and acetic acid, esterifying the mixture to produce an esterification product and reducing the esterification product. The mixture may provide a sufficient amount of ethanol and acetic acid for esterification and reduces the need for additional acetic acid and/or ethanol. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.