Pressure driven distillation for ethanol production and recovery from hydrogenation process
US8802902B2 · kind B2 · utility
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134References
18Claims
0Family size
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Key dates
| Filing date | Aug 27, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Recovery of alcohols, in particular ethanol, from a crude ethanol product obtained from the hydrogenation of acetic acid using pressure driven distillation to separate the crude ethanol product. The crude ethanol product may be fed to a distillations column in which a substantial portion of the water is removed with the acetic acid in the residue. A second column is at higher pressure than a first column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.