Activation of lignocellulosic biomass by ionic liquid for biorefinery fractionation
Abstract
Fractionation of lignocellulosic biomass is an attractive solution to develop an economically viable biorefinery by providing a saccharide fraction to produce fuels and a lignin stream that can be converted into high value products such as carbon fibers. In this study, the analysis of ionic liquid-activated biomass demonstrates that in addition of decreasing crystallinity, the selected ILs (1-butyl-3-methylimidazolium acetate, 1-butyl-3-methylimidazolium chloride and 1-ethyl-3-methylimidazolium acetate) deacetylate Yellow poplar under mild conditions (dissolution at 60-80 °C), and lower the degradation temperature of each biomass polymeric component, thereby reducing the recalcitrance of biomass. Among the three tested ILs, 1-ethyl-3-methylimidazolium acetate performed the best, providing a strong linear relationship between the level of deacetylation and the rate of enzymatic saccharification for Yellow poplar.
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The main product of Organosolv beech lignin oxidation in ionic liquids was 2,6-dimethoxy-1,4-benzoquinone; vanillin, syringaldehyde and other less abundant oxidised aromatic fragments were also identified.
“The main product was 2,6-dimethoxy-1,4-benzoquinone; vanillin, syringaldehyde and other less abundant oxidised aromatic fragments were also identified.”
From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [143]
Oxidation of Organosolv beech lignin in ionic liquids in the presence of transition metals and molecular oxygen has been demonstrated.
“The oxidation of Organosolv beech lignin in ionic liquids in the presence of transition metals and molecular oxygen has been demonstrated by Stärk et al. 143”
From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [143]
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Deconstruction of lignocellulosic biomass with ionic liquids
Brandt, A., Gräsvik, J., Hallett, J. P., & Welton, T. (2013) · Green Chemistry · doi:10.1039/c2gc36364j · Cited by 1,557 · see citing works
- Authors
- Labbé, N., Kline, L. M., Moens, L., Kim, K., Kim, P. C., & Hayes, D. G.
- Affiliations
- University of Tennessee at Knoxville (US)
- National Laboratory of the Rockies (US)
- Corresponding author
- Labbé, Nicole
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2012-01
- Volume
- 104
- Pages
- 701-707
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W1965748794
- Cited by
- 74
- References
- 35
- Citations by year
- 2026: 3 · 2025: 1 · 2023: 3 · 2022: 3 · 2021: 9 · 2020: 6 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 8 · 2014: 6 · 2013: 10 · 2012: 6
- FWCI
- 4.16
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Department of Agriculture
- Cooperative State Research, Education, and Extension Service
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
- Physical Sciences › Chemical Engineering › Catalysis › Ionic liquids properties and applications
- Keywords
- lignocellulosic biomass, ionic liquids, biomass fractionation, biorefinery, lignin valorization, deacetylation, Liriodendron tulipifera, 1-ethyl-3-methylimidazolium acetate, 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium acetate, enzymatic saccharification, biomass recalcitrance, crystallinity, carbon fiber
- MeSH terms
- Chemical Fractionation, Lignin, Steam, Wood, Ionic Liquids
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