Methods and systems for processing lignin during hydrothermal digestion of cellulosic biomass solids
US9562160B2 · kind B2 · utility
2Cited by
13References
37Claims
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Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Oct 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Digestion of cellulosic biomass solids may be complicated by release of lignin therefrom. Methods for digesting cellulosic biomass solids may comprise: providing cellulosic biomass solids in a digestion solvent; at least partially converting the cellulosic biomass solids into a phenolics liquid phase comprising lignin, an aqueous phase comprising an alcoholic component derived from the cellulosic biomass solids, and an optional light organics phase; and separating the phenolics liquid phase from the aqueous phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.