Dual vessel chemical modification and heating of wood with optional vapor
US9456473B2 · kind B2 · utility
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153References
24Claims
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Key dates
| Filing date | Dec 12, 2011 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Jan 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A commercial scale system and process for chemically modifying wood and then heating the chemically-modified wood. The system/process separates the chemical modification step from the heating step by utilizing two different vessels for the modification and heating steps. The system and process can, in certain situations, include a containment room for preventing escape of vapors from a chemical wood modification reactor, a wood heater, and/or a chemically-modified bundle of wood as the bundle is transported from the wood modification reactor to the wood heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.