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Influence of chip presteaming conditions on kraft pulp composition and properties
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-8992-3623
2016 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 70, no 5, 393-399 p.Article in journal (Refereed) PublishedText
Abstract [en]

Presteaming is a well-established technique in pulp mills, which improves cooking liquor impregnation by removing air from within and between chips. The aim of the study was to investigate how conditions during steaming affect the subsequent kraft cook and properties of the obtained pulp. It was found that higher pressure and temperature during chip presteaming led to increased degradation and dissolution of hemicelluloses. Lower refinability and tensile index was obtained for pulps cooked after presteaming at high pressure and for a long time.

Place, publisher, year, edition, pages
Walter de Gruyter, 2016. Vol. 70, no 5, 393-399 p.
Keyword [en]
alkali consumption, kraft cooking, presteaming, pulp properties, softwood, yield
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-187790DOI: 10.1515/hf-2015-0104ISI: 000375131700002ScopusID: 2-s2.0-84967113433OAI: oai:DiVA.org:kth-187790DiVA: diva2:931637
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QC 20160530

Available from: 2016-05-30 Created: 2016-05-30 Last updated: 2016-05-30Bibliographically approved

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