4.4 Review

Opportunities of Ionic Liquids for Lignin Utilization from Biorefinery

Journal

CHEMISTRYSELECT
Volume 3, Issue 27, Pages 7945-7962

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201801393

Keywords

Biorefinery; Green Chemistry; Ionic liquids; Lignin; Valorization

Funding

  1. National Natural Science Foundation of China [31270637, 21002101]
  2. Science and Technology Department of Guizhou Province [[2016]1402, [2016]5652]

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The development of economically viable biorefineries for the transformation of lignocellulose into sustainable biofuels, chemicals and materials requires effective valorization of lignin. The high solubility of lignocelluloses and lignin in ionic liquids has created new probabilities, which renders the essential significance of understanding the cell structure of biomass, isolation of lignin from biomass (IL-lignin), elucidation of the chemical structure of wood and lignin, and valorization of IL-lignin. In this review, we first give an overview of lignin chemistry, and then describe the current development of structural elucidation of lignin with IL-mediations, extraction fractionation and its catalytic conversion. This review also highlight the relationship between the research challenges, lignin utilization and the properties of ILs, on which a brief conclusion and perspectives are drawn.

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