Process for alcoholic fermentation of lignocellulosic biomass
US8642303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for the production of ethanol wherein a hydrolyzed lignocellulosic biomass is fermented in the presence of a stillage residue. The fermentation of cellulosic hydrolysates is improved by adding prior to and/or during fermentation a stillage residue side stream from a corn starch-to-ethanol process as a nutrient source for the yeast organisms used in the fermentation. Stillage residues from the grain dry mill ethanol producing process, including the whole stillage, wet cake, thin stillage, and/or syrup are added to assist as a nitrogen and nutrient source for the fermentive processes. The stillage residue is produced by any grain-to-ethanol process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.