Method for producing butanol using extractive fermentation
US9469584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed by extraction into a water immiscible organic extractant composition during the fermentation. The invention also relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible extractant composition comprising a first solvent having a butanol partition coefficient of at least 3, and a second solvent having a butanol partition coefficient, wherein the butanol partition coefficient of the first solvent is higher than the butanol partition coefficient of the second solvent. Optionally, the first solvent has a higher concentration of hydrogen bonding sites than the second solvent. The invention further relates to a composition including butanol in the water immiscible organic extractant composition described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.