Cellulose pretreatment process
US8287651B2 · kind B2 · utility
7Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jul 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0324
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the production of ethanol from biomass is disclosed. The process relates to the pretreatment of corncob biomass and includes the steps of exposing corncob to steam in a reaction vessel at an elevated temperature and reaction pressure for a preselected exposure time. Volatile compounds are continuously vented during pretreatment. The reaction pressure is released for explosive decomposition of the corncob biomass into fibrous solids and condensate. The exposure is preferably carried out at a temperature of 190-210° C. and a pressure of 190 psig to 275 psig and an exposure time of 3 to 10 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.