Method for treating lignocellulosic biomass by impregnation and steam explosion
US11236403B2 · kind B2 · utility
0Cited by
5References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 11, 2017 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Aug 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08H8/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention concerns a continuous method for treating a lignocellulosic biomass before enzymatic hydrolysis, said method comprising a transfer of crushed then pressed biomass to a step of impregnation by an acid liquor, the impregnated biomass dripping over the area containing the impregnation liquor, then the resulting wet biomass is pressed and sent to a steam explosion step. The impregnation liquor is prepared in a dedicated area from the used liquor from the dripping operation and/or that from the pressing operation, prior to the explosion step. The invention also concerns the facility for implementing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.