Shear/compression of chips for lower energy consumption in TMP-refining
2008 (English)In: Appita journal, ISSN 1038-6807, Vol. 61, no 1, 49-55 p.Article in journal (Refereed) Published
Fundamental studies of the deformation behaviour of wood show that combining small amounts of shear along with compression within a roll press reduces the work required for cell wall deformation. This permanent deformation can be increased by: increased number of passes through the nip reduced roll speed increased process temperature. Refining trials showed that the strength properties (except for the tear index), as well as the optical properties of TMP produced from these shear/compression pretreated chips are improved, with the potential of reducing electric energy by approx. 100 kWh/tonne, when compared to untreated chips.
Place, publisher, year, edition, pages
2008. Vol. 61, no 1, 49-55 p.
wood, shear, compression, energy, Picea abies, deformation, energy consumption, mechanical properties, thermomechanical pulp
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-6801ISI: 000252686700009OAI: oai:DiVA.org:kth-6801DiVA: diva2:11613
Uppdaterad från submitted till published(20101119)
QC 201011192007-02-222007-02-222010-11-19Bibliographically approved