Process for extracting ethanol from fermentation broths for direct blending into gasoline while preserving the broth for recycling
US5110319A · kind A · utility
14Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/942
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method of producing ethanol from a fermentation source for direct blending into gasoline to form gasohol is provided by extracting ethanol from the fermentation broth with a non-toxic solvent compatible with gasoline. The invention includes extraction outside of the fermentor and the recycling of the extracted broth back to the fermentor. An extracting column is used for the extraction and recycling and the extract can be dried before blending it with the gasoline. The preferred solvent is an alkylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.