Absorption and quench method for biomass pyrolysis product
US8936654B2 · kind B2 · utility
6Cited by
2References
17Claims
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Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A biomass pyrolysis product is quenched by direct cooling with a cold quench fluid and initial product separation is performed based on boiling point and solubility in the quench fluid. A properly chosen quench fluid may act as a selective solvent, thus providing dilution of unstable precursors of pyrolytic lignin or other heavy by-products, and/or separation of certain undesirable pyrolysis oil components such as water and light acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.