id:"swepub:oai:DiVA.org:kth-5433"
Search: id:"swepub:oai:DiVA.org:kth-5433" > The influence of in...
- 1 of 1
- Previous record
- Next record
- To hitlist
The influence of industrial black liquor on the delignification rate in the kraft cooking
-
- Sjödahl, Ragnar (author)
- KTH,Träkemi och massateknologi
-
- Ek, Monica (author)
- KTH,Träkemi och massateknologi
-
- Lindström, Mikael E. (author)
- KTH,Träkemi och massateknologi
- (creator_code:org_t)
- 2007
- 2007
- English.
- In: Journal of Pulp and Paper Science (JPPS). - 0826-6220. ; 33:4, s. 240-245
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- The effect of dissolved wood components in industrial black liquor on the rate of delignification in softwood kraft cooking has been studied The results show that, when industrial black liquor was added, the delignification rate increased significantly during the bulk phase and decreased during the residual phase. A softwood black liquor was fractionated with ceramic membranes with various cut-offs, to see the way the addition of various molecular weight fractions of the black-liquor lignin affected the delignification rate. The results show that the delignification rate is dependent more on the content of phenolic groups than on the size of the lignin fragments. However, a low molecular-weight lignin fraction has a higher content of phenolic groups than a high molecular-weight fraction does. These results may explain one reason for the positive effect of adding industrial black liquor to the bulk phase of a softwood kraft cook.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Keyword
- kraft pulping
- delignification
- black liquors
- phenol groups
- Cellulose and paper engineering
- Cellulosa- och pappersteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Pulp and Paper Science (JPPS) (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Sjödahl, Ragnar
- Ek, Monica
- Lindström, Mikae ...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Paper Pulp and F ...
- Articles in the publication
- Journal of Pulp ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
