The Initial Phase of Sodium Bisulfite Pulping of Pine, Part II
2016 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 31, no 3, 379-385 p.Article in journal (Refereed) Published
Single stage sodium bisulfite cooking of pine was carried out to investigate the influence of time and temperature in the initial phase of the cook. The cooking experiments were carried out using either a lab or a mill prepared cooking acid and the initial stage of the cook was extended up to 5 h cooking time. The impact of temperature on wood components and side reactions was analyzed between 142°C and 165°C. Arrhenius equation was used to determine the influence of temperature on wood components during the initial phase of bisulfite cooking and the activation energy was calculated for delignification rate, cellulose degradation and hemicellulose dissolution with regard to glucomannan and xylan. The extent of extractives removal at different temperature and time was also analyzed.
Place, publisher, year, edition, pages
Härnösand: Mittuniversitetet , 2016. Vol. 31, no 3, 379-385 p.
Bisulfite pulping, cellulose, extractives, glucomannan, kinetics, lignin, pine, sulfate, thiosulfate and xylan.
Research subject Chemical Engineering
IdentifiersURN: urn:nbn:se:kau:diva-37303OAI: oai:DiVA.org:kau-37303DiVA: diva2:845059
This paper was in manuscript form in Raghu Deshpande's licentiate thesis.2015-08-102015-08-062016-11-24Bibliographically approved