Purification of isoprene from renewable resources
US9751820B2 · kind B2 · utility
0Cited by
36References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.