Factors Affecting Wood Dissolution and Regeneration of Ionic Liquids
Abstract
Three wood species, eucalyptus grandis (E. grandis), southern pine (S. pine), and Norway spruce thermomechanical pulp (N. spruce TMP) were pretreated by dissolution in the ionic liquid (IL) 1-allyl-3-methylimidazolium chloride ([AMIM]Cl). The wood was regenerated from the ionic liquid in high yield and the recycling of the ionic liquid was nearly quantitative. The lignin contents and the efficiencies of cellulase enzymatic hydrolyses of the regenerated wood were examined offering an understanding into the IL pretreatment efficiency. The components that remained within the recycled ILs were qualitatively characterized by 31 P NMR spectroscopy. Wood density, pulverization intensity, and the nature of the regeneration nonsolvents were investigated as factors affecting the overall process. An increase in the wood density decreased the efficiency of the pretreatment, whereas extended pulverization periods decreased the yield of the regenerated wood after the IL pretreatment,with more glucose being released during the enzymatic hydrolysis. The yield of wood after IL pretreatment using water as the regeneration nonsolvent was found to be much higher than that of using methanol. As the reuse cycles of IL increased the wood regeneration yield increased, while certain wood components enriched within the recycled IL. The efficiency of cellulase enzymatic hydrolysis on the regenerated wood decreased with increasing reuse cycles of the IL.
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Almost quantitative yield of glucose and cellobiose with very little HMF was achieved when hydrolysing pure cellulose in acidified [C4C1im]Cl with the incremental water method.
“Almost quantitative yield of glucose and cellobiose with very little HMF was achieved when hydrolysing pure cellulose in acidified [C 4 C 1 im]Cl with the incremental water method.149”
From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [149]
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- Authors
- Li, B., Asikkala, J., Filpponen, I., & Argyropoulos, D. S.
- Affiliations
- University of Helsinki (FI)
- Corresponding author
- Argyropoulos, Dimitris S.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-01-29
- Volume
- 49
- Issue
- 5
- Pages
- 2477-2484
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2045138835
- Cited by
- 172
- References
- 51
- Citations by year
- 2025: 3 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 9 · 2019: 7 · 2018: 9 · 2017: 13 · 2016: 16 · 2015: 14 · 2014: 14 · 2013: 28 · 2012: 22
- FWCI
- 14.35
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Industrial & Engineering Chemistry Research (publishedVersion)
- Civil War Book Review (submittedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Physical Sciences › Chemical Engineering › Catalysis › Ionic liquids properties and applications
- Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
- Keywords
- ionic liquid pretreatment, wood dissolution, 1-allyl-3-methylimidazolium chloride, thermomechanical pulp, Eucalyptus grandis, southern pine, Norway spruce, lignin removal, ionic liquid recycling, wood density, pulverization, glucose yield
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