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The O-factor: using the H-factor concept to predict the outcome of organosolv pretreatment
NTNU Norwegian University of Science and Technology, Norway.
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0003-0140-1693
NTNU Norwegian University of Science and Technology, Norway.
2023 (English)In: Biomass Conversion and Biorefinery, ISSN 2190-6815, E-ISSN 2190-6823, Vol. 13, p. 6727-Article in journal (Refereed) Published
Abstract [en]

The H-factor, a parameter used extensively to analyze and predict the outcome of kraft pulping, is applied to organosolv pretreatment. The total solid yield after organosolv pretreatment fits well with the H-factor. The concept has been extended to apply to the individual biomass polymers using unique values for the activation energy for the depolymerization of the individual biomass polymers, giving the O-factor concept analogous to the P factor used for analyzing prehydrolysis kinetics. The results showed a linear relationship between ln(L0/L) and O-factor at an activation energy of 96 kJ/mol. The best linear fit for mannan and xylan degradation was obtained at O-factor activation energies of 104 kJ/mol and 142 kJ/mol, respectively, and the formation of furfural and 5-HMF gave a good linear fit using an O-factor activation energy of 150 kJ/mol. The O-factor is thus a useful concept for analyzing organosolv pretreatment when the temperature during pretreatment is not constant. © 2021, The Author(s).

Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH , 2023. Vol. 13, p. 6727-
Keywords [en]
H-factor, O-factor, Organosolv pretreatment, Softwood, Kraft pulp, Polymers, Factor activation, Linear fits, Linear relationships, Pre-hydrolysis, Pre-Treatment, Total solids, Xylan degradations, Activation energy
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-55695DOI: 10.1007/s13399-021-01667-8Scopus ID: 2-s2.0-85110618463OAI: oai:DiVA.org:ri-55695DiVA, id: diva2:1583601
Note

Funding details: Norges Teknisk-Naturvitenskapelige Universitet, NTNU; Funding details: Norges Forskningsråd; Funding details: Department of Chemical Engineering, Universiti Teknologi Petronas; Funding text 1: This project was funded by the Department of Chemical Engineering, NTNU, Trondheim. The authors would like to acknowledge RISE PFI for technical assistance and providing the laboratory facilities. This work is carried out as part of the Norwegian national research infrastructure project NorBioLab (“Norwegian Biorefinery Laboratory”) and Norwegian Centre for Sustainable Bio-based Fuels and Energy (Bio4Fuels). We gratefully acknowledge The Research Council of Norway for financial support.

Available from: 2021-08-09 Created: 2021-08-09 Last updated: 2024-05-27Bibliographically approved

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Opedal, Mihaela Tanase

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