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Dissolution of wood components during hot water extraction of spruce, TAPPI Journal May 2023
ABSTRACT: The purpose of this study was to investigate the autohydrolysis of softwood, which is the main chemical operation in both hot water extraction and steam explosion. Control of the process and monitoring its course were ensured by the careful choice of experimental setup and conditions: a milled spruce material was extracted in a small flow-through reactor to minimize degradation of the dissolved material and to enable analysis of the resulting liquors extracted at selected time points. The obtained liquid and solid fractions were analyzed for sugar composition and acetic acid concentration. The results showed that partially degraded hemicelluloses were extracted; hemicelluloses side chains were cleaved off and detected as monomers, while deacetylation was limited. Chain scissions of cellulose were observed as a result of autohydrolysis.
Recirculation of Bleach Plant Waste Liquors, 1993 Environmental Conference Proceedings
Recirculation of Bleach Plant Waste Liquors, 1993 Environmental Conference Proceedings
Quantitative P NMR Detection of Radical Species in Peroxide Bleaching, 2002 International Pulp Bleaching Conference Proceedings
Quantitative P NMR Detection of Radical Species in Peroxide Bleaching, 2002 International Pulp Bleaching Conference Proceedings
Strategies to Reduce the Environmental Impact of Titanium Dioxide Production Based on Life Cycle Assessment, 1995 European Polymers, Laminations and Coatings Proceedings
Strategies to Reduce the Environmental Impact of Titanium Dioxide Production Based on Life Cycle Assessment, 1995 European Polymers, Laminations and Coatings Proceedings
Water Pinch Application for a Deink Mill Case Study, 1999 Pulping Conference Proceedings
Water Pinch Application for a Deink Mill Case Study, 1999 Pulping Conference Proceedings
Influence of the Bleaching Medium on Extraction Delignification Efficiency (II): Oxidized Lignin Solubility, 1996 Pulping Conference Proceedings
Influence of the Bleaching Medium on Extraction Delignification Efficiency (II): Oxidized Lignin Solubility, 1996 Pulping Conference Proceedings
Critical Review of the Use of Fireside Additives for Deposit Control in Kraft Recovery Boilers, 1997 Engineering Conference Proceedings
Critical Review of the Use of Fireside Additives for Deposit Control in Kraft Recovery Boilers, 1997 Engineering Conference Proceedings
Clean Technology Papermaking with Less Water and Energy, 1999 Environmental Conference Proceedings
Clean Technology Papermaking with Less Water and Energy, 1999 Environmental Conference Proceedings
Process Stewardship - Beyond Mill-Wide Systems for Survival
Process Stewardship - Beyond Mill-Wide Systems for Survival in the 90s, 1992 Process Control, Electrical & Info. Conference Proceedings
Advanced Tie Line Control for Real Time Pricing (RTP) and Waste Fuel Cogeneration, 2008 Engineering, Pulping and Environmental Conference
Advanced Tie Line Control for Real Time Pricing (RTP) and Waste Fuel Cogeneration, 2008 Engineering, Pulping and Environmental Conference