Method for non-catalytic delignification of biomass inside an apparatus
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United States of America
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Mar 26, 2024
Grant Date -
N/A
app pub date -
Jan 13, 2020
filing date -
Jan 13, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a method for non-catalytic delignification of biomass, without externally added catalyst, with a mixed solvent of oxygenated organic solvent and water in the presence of an oxidant, at moderate temperature and pressure. Further, the separation of delignified cellulose from liquid mixture is carried out at around equivalent process conditions. Low modified kappa number delignified cellulose is obtained after separation of a liquid mixture containing a mixed solvent, hemicelluloses, lignin and traces of miscellaneous compounds. Furthermore, the method has lower chemical consumption in the downstream process, ease of operation and robustness.
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International Classification(s)
- 2020 Application Filing Year
- D21H Class
- 395 Applications Filed
- 206 Patents Issued To-Date
- 52.16 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21H Class
- 0 % this patent is cited more than
- 1 Age
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