Separation of vapor crude alcohol product
US8809597B2 · kind B2 · utility
2Cited by
93References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jul 29, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/76
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.