Method and apparatus for lignocellulose pretreatment using a super-cellulose-solvent and highly volatile solvents
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United States of America Patent
Stats
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Mar 4, 2014
Grant Date -
Sep 17, 2009
app pub date -
Mar 16, 2009
filing date -
Mar 14, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and a system are provided for the efficient fractionation of lignocellulosic biomass into cellulose, hemicellulose, and lignin. The cellulose and hemicellulose thus obtained are highly amorphous and can be readily converted into highly concentrated mixtures of five and six carbon sugars using known methods. Typical yields of sugars exceed 100 grams of sugars per liter of sugar solution. Other products, such as alcohols, can easily be prepared according to methods of the invention. The modest process conditions and low solvent/solid ratios of some embodiments of the invention require relatively low capital and processing costs.
First Claim
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International Classification(s)
- 2009 Application Filing Year
- C13B Class
- 8 Applications Filed
- 5 Patents Issued To-Date
- 62.50 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- C13B Class
- 0 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 4, 2025 |
