Issue 6, 2021

Recent developments in ionic liquid pretreatment of lignocellulosic biomass for enhanced bioconversion

Abstract

Lignocellulosic biomass has been used as starting materials in the process of producing biofuels and chemicals. A pretreatment step is necessary to mitigate the inherent recalcitrance of lignocellulosic biomass during biochemical conversion. Certain ionic liquids (ILs) have been proven to be effective solvents to deconstruct recalcitrant lignocellulosic biomass for high sugar yield for over a decade. Dialkylimidazolium-based, choline-based, and protic acidic ILs are frequently used in biomass pretreatment. Extensive research in this field has been done with technological hurdles revealed during the process. In this review paper, advances in the biocompatibility of ILs and process integration, optimization and scale-up of IL pretreatment processes, IL recovery and reuse, and economic and sustainability analysis were presented. ILs continue to be actively used in biomass pretreatment due to their structural variability and functional tunability.

Graphical abstract: Recent developments in ionic liquid pretreatment of lignocellulosic biomass for enhanced bioconversion

Article information

Article type
Review Article
Submitted
08 12月 2020
Accepted
08 2月 2021
First published
08 2月 2021

Sustainable Energy Fuels, 2021,5, 1655-1667

Recent developments in ionic liquid pretreatment of lignocellulosic biomass for enhanced bioconversion

J. Zhang, D. Zou, S. Singh and G. Cheng, Sustainable Energy Fuels, 2021, 5, 1655 DOI: 10.1039/D0SE01802C

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