Process and apparatus for removing impurities from solid biomass feeds
US12422138B2 · kind B2 · utility
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Key dates
| Filing date | Aug 13, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jun 29, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Processes and apparatus are described for removing impurities from solid biomass while preserving hydrogen and carbon content. Examples are provided of processes using acidified aqueous solutions in a countercurrent extraction process that includes the pneumatic transport of slurries between process units, or a mechanical dewatering step, or both, to produce a washed biomass suitable for various upgrading and conversion processes. Compositions related to the processes are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.