Cited by 65Ionic liquids properties and applicationsLignin and Wood ChemistryBiofuel production and bioconversion

Disintegration and dissolution kinetics of wood chips in ionic liquids

Viell, Jörn, Marquardt, Wolfgang·2011·Holzforschung

Abstract

Ionic liquids are able to dissolve polysaccharides and lignin, but there is only scarce knowledge about the dissolution of native wood. In the present paper, wood was dissolved by the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIMAc). A quantitative balance of the dissolved compounds is presented and the investigations are complemented by in situ microscopy of native wood in EMIMAc. The resulting dissolution kinetics in EMIMAc reveals distinct differences between spruce and beech. While particles of 0.1–0.5 mm of spruce dissolve slowly (up to 40% after 24 h), beech is dissolved more efficiently (75% after 24 h and 90% after 72 h). Wood chips of 10 mm length show similar dissolution kinetics and lignin yields of up to 10%. Microscopic studies reveal a disintegration of wood in EMIMAc into cells with large specific surface area, and differences in dissolution between spruce and beech were observed. These findings explain the size-independent dissolution of wood in EMIMAc and may open up new opportunities for the pretreatment of wood in ionic liquids.

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Registry

Crossref · 10.1515/hf.2011.072

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  • An α,β-dehydration reaction was reported for both [C2C1im]Cl and [C2C1im][MeCO2] on a lignin model compound.

    “An α,β-dehydration reaction was reported for both ionic liquids.”

    From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [135]

  • The dehydration of the lignin model compound was significantly faster in [C2C1im][MeCO2] than in [C2C1im]Cl.

    “The dehydration was significantly faster in [C 2 C 1 im][MeCO 2 ] than in [C 2 C 1 im]Cl, possibly reflecting the acetate's greater basicity and affinity towards water.141”

    From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [135]

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Authors
Viell, J., & Marquardt, W.
Affiliations
RWTH Aachen University (DE)
Corresponding author
Marquardt, Wolfgang
Venue
Holzforschung
Published
2011-06-01
Volume
65
Issue
4
ISSN
  • 0018-3830 (ISSN-L)
  • 1437-434X
OpenAlex
W2065128504
Cited by
65
References
40
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2021: 2 · 2020: 6 · 2019: 1 · 2018: 4 · 2017: 4 · 2016: 5 · 2015: 13 · 2014: 6 · 2013: 13 · 2012: 7
FWCI
3.78
Type
journal article
Language
en
Open access
closed
Locations
  • Holzforschung (publishedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
Topics
  • Physical Sciences › Chemical Engineering › Catalysis › Ionic liquids properties and applications
  • Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
Keywords
ionic liquids, 1-ethyl-3-methylimidazolium acetate, wood dissolution, dissolution kinetics, lignin dissolution, wood chips, spruce, beech, in situ microscopy, wood pretreatment

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