Treating birch wood with a switchable 1,8-diazabicyclo-[5.4.0]-undec-7-ene-glycerol carbonate ionic liquid
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Ikenna Anugwom
,
Päivi Mäki-Arvela
Abstract
The suitability of a new switchable ionic liquid (SIL) has been investigated as a solvent for fractionation of lignocellulosic materials. SIL was prepared from inexpensive chemicals, e.g., glycerol, CO2, and 1,8-diazabicyclo-[5.4.0]-undec-7-ene (DBU). Fresh Nordic birch wood (B. pendula) was treated with the SIL for a time period of 1–5 days at 100°C and under atmospheric pressure. Upon SIL treatment, at best, 57% of the hemicelluloses were dissolved and 50% of lignins were dissolved from the native birch. The slightly fibrillated SIL treated chips contained about 55% cellulose. Up to 76% of the recovered species removed from the spent SIL liquor was originating from hemicelluloses, mainly from xylan. The spent SILs were reused for fresh wood dissolution in four consecutive cycles and each time the wood dissolution efficiency was similar. SILs could offer affordable (easy-to-synthesize) solvent systems for partial elimination of hemicelluloses and lignin from wood. SILs can also be prepared in-situ and on-site.
©2012 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- Masthead
- Review
- Comparative evaluation of different kinetic models for batch cooking: A review
- Original Papers
- Characteristics of prehydrolysis-kraft pulp fibers from Scots pine
- Treating birch wood with a switchable 1,8-diazabicyclo-[5.4.0]-undec-7-ene-glycerol carbonate ionic liquid
- Optical properties of thermomechanical pulp (TMP) obtained from sulfite-pretreated Norway spruce with focus on two-photon spectral imaging (TPSI)
- Physicochemical properties of sodium lignosulfonates (NaLS) modified by laccase
- Determination of metal ions in single wood fiber by LA-ICP-MS
- Hydrolytic enzyme activity of EN113 standard basidiomycetes in the fermentation of lignocellulosic material and wood colonization
- Influence of the viscosity of UF resins on the radial and tangential penetration into poplar wood and on the shear strength of adhesive joints
- Development of soy-based adhesives for the manufacture of wood composite products
- Exploratory study on fatigue behaviour of laterally loaded, nailed timber joints, based on a dissipated energy criterion
- Young’s and shear moduli of glued laminated timber composed of different species obtained by a flexural vibration test
- Heartwood detection for Scotch pine by fluorescence image analysis
- The antagonistic properties of Trichoderma spp. inhabiting woods for potential biological control of wood-damaging fungi
- Investigation of copper solubilization and reaction in micronized copper treated wood by electron paramagnetic resonance (EPR) spectroscopy
- A genetic marker of 4-coumarate: coenzyme A ligase gene in the cinnamaldehyde-chemotype Cinnamomum osmophloeum
- Meetings
- Meetings
Articles in the same Issue
- Masthead
- Masthead
- Review
- Comparative evaluation of different kinetic models for batch cooking: A review
- Original Papers
- Characteristics of prehydrolysis-kraft pulp fibers from Scots pine
- Treating birch wood with a switchable 1,8-diazabicyclo-[5.4.0]-undec-7-ene-glycerol carbonate ionic liquid
- Optical properties of thermomechanical pulp (TMP) obtained from sulfite-pretreated Norway spruce with focus on two-photon spectral imaging (TPSI)
- Physicochemical properties of sodium lignosulfonates (NaLS) modified by laccase
- Determination of metal ions in single wood fiber by LA-ICP-MS
- Hydrolytic enzyme activity of EN113 standard basidiomycetes in the fermentation of lignocellulosic material and wood colonization
- Influence of the viscosity of UF resins on the radial and tangential penetration into poplar wood and on the shear strength of adhesive joints
- Development of soy-based adhesives for the manufacture of wood composite products
- Exploratory study on fatigue behaviour of laterally loaded, nailed timber joints, based on a dissipated energy criterion
- Young’s and shear moduli of glued laminated timber composed of different species obtained by a flexural vibration test
- Heartwood detection for Scotch pine by fluorescence image analysis
- The antagonistic properties of Trichoderma spp. inhabiting woods for potential biological control of wood-damaging fungi
- Investigation of copper solubilization and reaction in micronized copper treated wood by electron paramagnetic resonance (EPR) spectroscopy
- A genetic marker of 4-coumarate: coenzyme A ligase gene in the cinnamaldehyde-chemotype Cinnamomum osmophloeum
- Meetings
- Meetings
