Methods for pretreating biomass
US9644222B2 · kind B2 · utility
7Cited by
75References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2011 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for pretreating biomass is provided, which includes, in a reactor, allowing gaseous ammonia to condense on the biomass and react with water present in the biomass to produce pretreated biomass, wherein reactivity of polysaccharides in the biomass is increased during subsequent biological conversion as compared to the reactivity of polysaccharides in biomass which has not been pretreated. A method for pretreating biomass with a liquid ammonia and recovering the liquid ammonia is also provided. Related systems which include a biochemical or biofuel production facility are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.