A1 Journal article (refereed)
Detailed modeling of the kraft pulping chemistry : carbohydrate reactions (2020)


Fearon, O., Nykänen, V., Kuitunen, S., Ruuttunen, K., Alén, R., Alopaeus, V., & Vuorinen, T. (2020). Detailed modeling of the kraft pulping chemistry : carbohydrate reactions. AIChE Journal, 66(8), Article e16252. https://doi.org/10.1002/aic.16252


JYU authors or editors


Publication details

All authors or editorsFearon, Olesya; Nykänen, Vesa; Kuitunen, Susanna; Ruuttunen, Kyösti; Alén, Raimo; Alopaeus, Ville; Vuorinen, Tapani

Journal or seriesAIChE Journal

ISSN0001-1541

eISSN1547-5905

Publication year2020

Volume66

Issue number8

Article numbere16252

PublisherJohn Wiley & Sons

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1002/aic.16252

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/68743


Abstract

The article introduces a detailed model for carbohydrate chemistry in kraft pulping. This article is continuation to the modeling work carried out for hot water extraction and chemical pulp bleaching. The model includes galactoglucomannan, xylan, and cellulose acid‐base equilibria, in addition to peeling, stopping, and alkaline hydrolysis reactions of the same carbohydrates, as well as hexenuronic acid formation and degradation reactions. The Arrhenius parameters were applied from the literature or regressed against experimental data in the present study. The model is very successful in predicting the experimental data of carbohydrate reactions during kraft pulping. Many features of the pulping‐related model can be applied to specific fractionation chemistry considerations. The detailed knowledge on carbohydrates composition at any stage of pulping gives possibility for further development of biorefinery cases based on kraft pulping, such as biofuel and chemicals production.


Keywordspulpingmodelling (representation)chemical reactionsreaction mechanismscarbohydrates

Free keywordscarbohydrates; kraft pulping; modeling; reaction kinetics; reaction mechanism


Contributing organizations


Ministry reportingYes

Reporting Year2020

JUFO rating2


Last updated on 2024-14-02 at 17:46