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Addition of wood model components to kraft cooking to better understand the improvement in delignification rate caused by dissolved wood components
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.ORCID iD: 0000-0002-2900-4713
2005 (English)In: Appita Conference and Exhibition: 59th Appita Annual Conference and Exhibition: Incorporating the 13th ISWFPC (International Symposium on Wood, Fibre and Pulping Chemistry), Auckland, New Zealand, 16-19 May 2005: Proceedings, Appita, Inc. , 2005, 365-368 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this study different dissolved wood components (DWC) in the industrial black liquor and their effect on the delignification during the kraft cook has been investigated. The cooking were performed on softwood as well as hardwood to se different effects on the delignification rates. Different wood model components as well as treated black liquor components were added to the kraft cooking liquor. The results show that the phenolic groups in the black liquor lignin has a positive effect on the delignifiacation rate. It was also shown that surfactant had a positive effect on the delignification rate in systems with low amount of DWC. Furthermore, it was shown that a black liquor with a low amount of lignin i.e. mostly carbohydrates had a positive effect on the delignification rate. Cellulose and hemicellulos, on the other hand, did not seem to have any effect on the delignification rate.

Place, publisher, year, edition, pages
Appita, Inc. , 2005. 365-368 p.
Series
Appita Annual Conference, ISSN 1443-5454 ; 3
Keyword [en]
Carbohydrates, Cellulose, Delignification, Lignin, Hemicellulose, Wood model components, Wood, Lignins
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-156554Scopus ID: 2-s2.0-29344455926OAI: oai:DiVA.org:kth-156554DiVA: diva2:767639
Conference
59th Appita Annual Conference and Exhibition, incorporating the 13th ISWFPC: International Symposium on Wood, Fibre and Pulping Chemistry, 16 May 2005 through 19 May 2005, Auckland, New Zealand
Note

QC 20141202

Available from: 2014-12-02 Created: 2014-12-01 Last updated: 2014-12-02Bibliographically approved

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Lindström, Mikael E.

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  • apa
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