Steam explosion treatments of technical hydrolysis lignin
-
Stepan Krutov
,
Elena Ipatova
Abstract
Technical hydrolysis lignins, both freshly obtained and stored longterm under atmosphere conditions, were treated by steam explosion (SE, 235°C/3.2 MPa) for 1, 2, and 3 min. The SE treated lignins were characterized by means of solid-state 13C nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy. It was found that SE leads to significant changes in morphological and chemical properties of lignin due to oxidation, condensation and hydrolytic destruction.
Acknowledgments
The authors would like to thank Prof. A. Pranovich from Åbo Akademi University, Laboratory of Wood and Paper Chemistry and Prof. Ja. Gravitis from Latvian State Institute of Wood Chemistry, Wood Materials Department for the participation in this work. The research was supported by Latvian National Research Programme “Forest and earth renewable resources: research and sustainable utilization – new products and technologies 2014–2019”.
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Original Articles
- About structural changes of lignin during kraft cooking and the kinetics of delignification
- Utilization of lignin powder for manufacturing self-binding HDF
- Consecutive determination of softwood kraft lignin structure and molar mass from NMR measurements
- Production of hemicellulose oligomers from softwood chips using autohydrolysis followed by an enzymatic post-hydrolysis
- Morphological features of aerogels and carbogels based on lignosulfonates
- Wood based activated carbons for supercapacitor electrodes with sulfuric acid electrolyte
- New insights into the decomposition mechanism of chlorine dioxide at alkaline pH
- Upgrading of commercial pulps to high-purity dissolving pulps by an ionic liquid-based extraction method
- Hardwood kraft pulp structural features affecting refinability
- Brightness stability of eucalyptus-dissolving pulps: effect of the bleaching sequence
- Cellulose fiber based fungal and water resistant insulation materials
- Biomass conversion into blow-in heat insulation materials by steam explosion
- Effect of cationic polyelectrolytes in contact-active antibacterial layer-by-layer functionalization
- Nanocelluloses obtained by ammonium persulfate (APS) oxidation of bleached kraft pulp (BKP) and bacterial cellulose (BC) and their application in biocomposite films together with chitosan
- Volatile terpene extraction of spruce, fir and maritime pine wood: supercritical CO2 extraction compared to classical solvent extractions and steam distillation
- Protective effects of proanthocyanidins extracts from the bark of deciduous trees in lipid systems
- Short Notes
- Steam explosion treatments of technical hydrolysis lignin
- Moisture absorption properties of hardwood veneers modified by a sol-gel process
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Original Articles
- About structural changes of lignin during kraft cooking and the kinetics of delignification
- Utilization of lignin powder for manufacturing self-binding HDF
- Consecutive determination of softwood kraft lignin structure and molar mass from NMR measurements
- Production of hemicellulose oligomers from softwood chips using autohydrolysis followed by an enzymatic post-hydrolysis
- Morphological features of aerogels and carbogels based on lignosulfonates
- Wood based activated carbons for supercapacitor electrodes with sulfuric acid electrolyte
- New insights into the decomposition mechanism of chlorine dioxide at alkaline pH
- Upgrading of commercial pulps to high-purity dissolving pulps by an ionic liquid-based extraction method
- Hardwood kraft pulp structural features affecting refinability
- Brightness stability of eucalyptus-dissolving pulps: effect of the bleaching sequence
- Cellulose fiber based fungal and water resistant insulation materials
- Biomass conversion into blow-in heat insulation materials by steam explosion
- Effect of cationic polyelectrolytes in contact-active antibacterial layer-by-layer functionalization
- Nanocelluloses obtained by ammonium persulfate (APS) oxidation of bleached kraft pulp (BKP) and bacterial cellulose (BC) and their application in biocomposite films together with chitosan
- Volatile terpene extraction of spruce, fir and maritime pine wood: supercritical CO2 extraction compared to classical solvent extractions and steam distillation
- Protective effects of proanthocyanidins extracts from the bark of deciduous trees in lipid systems
- Short Notes
- Steam explosion treatments of technical hydrolysis lignin
- Moisture absorption properties of hardwood veneers modified by a sol-gel process
