Purification of isoprene from renewable resources
US8569562B2 · kind B2 · utility
2Cited by
21References
33Claims
0Family size
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Key dates
| Filing date | Dec 15, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
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.