Processes for increasing alcohol production
US8895786B2 · kind B2 · utility
0Cited by
244References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Oct 6, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for reducing ethyl acetate and/or diethyl acetal concentration of a crude ethanol product by hydrolysis is disclosed. A portion of the water is initially separated from the crude ethanol product in a first column residue. Ethyl acetate in the first column distillate is hydrolyzed to form additional ethanol and acetic acid. Product ethanol is recovered in a second distillation column preferably in a side stream and acetic acid is removed in the second column residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.