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 editors: Fearon, Olesya; Nykänen, Vesa; Kuitunen, Susanna; Ruuttunen, Kyösti; Alén, Raimo; Alopaeus, Ville; Vuorinen, Tapani
Journal or series: AIChE Journal
ISSN: 0001-1541
eISSN: 1547-5905
Publication year: 2020
Volume: 66
Issue number: 8
Article number: e16252
Publisher: John Wiley & Sons
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1002/aic.16252
Publication open access: Openly available
Publication channel open access: Partially 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.
Keywords: pulping; modelling (representation); chemical reactions; reaction mechanisms; carbohydrates
Free keywords: carbohydrates; kraft pulping; modeling; reaction kinetics; reaction mechanism
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 2