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DOE OSTI · 1649190

Lignin extraction and upgrading using deep eutectic solvents

Chen, Zhu·Ragauskas, Arthur·Wan, Caixia
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Abstract

Deep eutectic solvents (DESs) are a class of green solvents exhibiting low vapor pressure, high thermal stability,low toxicity, and biodegradability. These features make them attractive solvents for lignocellulosic biomassprocessing, especially for lignin valorization. DESs not only solubilize lignin from lignocellulose biomass, butalso confer extracted lignin with properties favorable to its further upgrading. This review summarizes recentadvances in biomass fractionation using DESs for lignin extraction. It also covers lignin upgrading in DESs interms of depolymerization and functionalization. The challenges of tailoring lignin properties by DESs for differentvalorization routes are also discussed.

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Chen, Zhu, Ragauskas, Arthur, Wan, Caixia. 2020-02-21. Lignin extraction and upgrading using deep eutectic solvents. https://doi.org/10.1016/j.indcrop.2020.112241

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