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Irreversible long fibre collapse at high temperature TMP reject refining - initial studies
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Responsible organisation
2004 (English)In: Pulp & paper Canada, ISSN 0316-4004, Vol. 105, no 7, 47-51 p.Article in journal (Refereed) Published
Abstract [en]

Effects of preheating temperature on energy consumption,fibre collapse and pulp quality in refining of spruce TMP reject material were studied. At preheating to temperatures well above the softening temperature of lignin thick-walled fibres were collapsed to a higher degree. Shives and fibres in the BMN +10 fraction were efficiently reduced. An increase in sheet density was obtained. Energy consumption was reduced, at a certain freeness level. This study indicates that an improved surface smoothness can be achieved as result of high temperature reject refining.

Place, publisher, year, edition, pages
2004. Vol. 105, no 7, 47-51 p.
Keyword [en]
High temperature, Thermomechanical, Smoothness, Rejects refiners, Collapse, Pulping
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-2323ISI: 000223006500009Local ID: 2493OAI: oai:DiVA.org:miun-2323DiVA: diva2:27355
Available from: 2008-09-30 Created: 2008-12-16 Last updated: 2011-08-18Bibliographically approved
In thesis
1. Effects of Reject Refining at High Temperature on TMP Fibre Properties
Open this publication in new window or tab >>Effects of Reject Refining at High Temperature on TMP Fibre Properties
2008 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2008. 79 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 64
Keyword
Fibre collapse, fibre decollapse, high temperature, refining, reject, roughening, bonding, acoustic emission, mechanical pulping, softening temperature, bond strength
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:miun:diva-8397 (URN)978-91-86073-17-6 (ISBN)
Public defence
2008-11-28, M108, Sundsvall, 10:00 (Swedish)
Opponent
Supervisors
Available from: 2009-01-22 Created: 2009-01-21 Last updated: 2009-01-22

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf