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

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 effecti...

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Bibliographic Details
Published inSustainable energy & fuels Vol. 5; no. 6; pp. 1655 - 1667
Main Authors Zhang, Jinxu, Zou, Dongzhe, Singh, Seema, Cheng, Gang
Format Journal Article
LanguageEnglish
Published London Royal Society of Chemistry 23.03.2021
Subjects
Biocompatibility
Bioconversion
Biofuels
Biomass
Choline
Economic analysis
Ionic liquids
Ions
Lignocellulose
Optimization
Pretreatment
Structure-function relationships
Sustainability
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Summary: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. Lignocellulosic biomass has been used as starting materials in the processes of producing biofuels and chemicals.
ISSN:2398-4902
2398-4902
DOI:10.1039/d0se01802c