Ionic Liquids for Lignin Processing: Dissolution, Isolation, and Conversion

Md. Mokarrom Hossain; Leigh Aldous

doi:10.1071/CH12324

Ionic Liquids for Lignin Processing: Dissolution, Isolation, and Conversion

Md. Mokarrom Hossain, Leigh Aldous

Chemistry

Research output: Contribution to journal › Article › peer-review

100 Citations (Scopus)

Abstract

We present a review on the multifunctional use of ionic liquids with respect to lignin processing. In a biorefinery context, lignocellulosics could be used to provide sustainable sources of fuels such as bioethanol, and feedstock molecules for the chemical industry such as phenols and other aromatics. However, separation of lignin from cellulose and hemicellulose is a vital step. Ionic liquids can dissolve extensive quantities of biomass, and even be designed to be multifunctional solvents. We highlight the use of ionic liquids in selectively or non-selectively dissolving lignin, the depolymerization reactions that have been attempted on lignin in ionic liquids, and the effect ionic liquids have been observed to have on such processes. Finally, we present some of the challenges and issues that must be addressed before the informed and large-scale application of ionic liquids can be realized for lignin processing.

Original language	English
Pages (from-to)	1465-1477
Journal	AUSTRALIAN JOURNAL OF CHEMISTRY
Volume	65
Issue number	11
DOIs	https://doi.org/10.1071/CH12324
Publication status	Published - Sept 2012

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10.1071/CH12324

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title = "Ionic Liquids for Lignin Processing: Dissolution, Isolation, and Conversion",

abstract = "We present a review on the multifunctional use of ionic liquids with respect to lignin processing. In a biorefinery context, lignocellulosics could be used to provide sustainable sources of fuels such as bioethanol, and feedstock molecules for the chemical industry such as phenols and other aromatics. However, separation of lignin from cellulose and hemicellulose is a vital step. Ionic liquids can dissolve extensive quantities of biomass, and even be designed to be multifunctional solvents. We highlight the use of ionic liquids in selectively or non-selectively dissolving lignin, the depolymerization reactions that have been attempted on lignin in ionic liquids, and the effect ionic liquids have been observed to have on such processes. Finally, we present some of the challenges and issues that must be addressed before the informed and large-scale application of ionic liquids can be realized for lignin processing.",

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AB - We present a review on the multifunctional use of ionic liquids with respect to lignin processing. In a biorefinery context, lignocellulosics could be used to provide sustainable sources of fuels such as bioethanol, and feedstock molecules for the chemical industry such as phenols and other aromatics. However, separation of lignin from cellulose and hemicellulose is a vital step. Ionic liquids can dissolve extensive quantities of biomass, and even be designed to be multifunctional solvents. We highlight the use of ionic liquids in selectively or non-selectively dissolving lignin, the depolymerization reactions that have been attempted on lignin in ionic liquids, and the effect ionic liquids have been observed to have on such processes. Finally, we present some of the challenges and issues that must be addressed before the informed and large-scale application of ionic liquids can be realized for lignin processing.

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Ionic Liquids for Lignin Processing: Dissolution, Isolation, and Conversion

Abstract

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