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Totally chlorine-free bleaching of prehydrolysis soda pulp from plantation hardwoods consisting of various lignin structures
Open accessAbstract
The process of prehydrolysis followed by soda-anthraquinone (AQ) cooking and totally chlorine-free (TCF) bleaching with peroxymonosulfuric acid (P sa ) was investigated to develop a biorefinery process. Eucalyptus globulus , showing a high syringaldehyde (S a ) to vanillin (V a ) molar ratio after nitrobenzene oxidation, was utilized. Xylooligosaccharide yield in the prehydrolysate (PHL) obtained at 150 °C for 2.5 h reached 7.2% of wood weight, indicating 47% extraction of xylan. Furfural yields increased with acid catalytic dehydration of the PHL to 1.0–1.8% of wood weight; adding an earlier acid post-hydrolysis of the PHL to generate monomeric xylose enhanced furfural production to 4.0%. Soda-AQ cooking, a non-sulfur process affording simpler alkali lignin isolation than kraft cooking, was utilized. Active alkali dosage increment decreased both S a to V a molar ratio (S/V ratio) and S a and V a yields of dissolved lignin. Gel permeation chromatography indicated decreased or increased purified lignin weight-average molecular weight ( M w ) upon increased active alkali dosage or prehydrolysis temperature, respectively (e.g., 150 to 170 °C at 18% alkali increased M w 1653 to 2050). Chlorine dioxide (0.083% and 0.042% as active chlorine) inclusion during the 1st and 2nd P sa stages with P sa (0.2% and 0.1% as H 2 SO 5 weight, respectively) improved final bleached pulp viscosity from 6.0 to 7.2 mPa s.
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“Pentosan is a type of hemicellulose compound, which has an important function as a binder between fibres in the pulp and paper making process [41 -44].”
From Enhancing dissolving pulp quality of mixed raw materials through pre-hydrolysis kraft-cooking: A study on Acacia crassicarpa and Terminalia catappa (2024) · cites this paper as [41]
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Self-citation
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Cited by
Utami, S. P., Tanifuji, K., Putra, A. S., Nakagawa-Izumi, A., Ohi, H., & Evelyn, E. (2021) · JAPAN TAPPI JOURNAL · doi:10.2524/jtappij.75.373 · Cited by 13
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Metadata
- Authors
- Salaghi, A., Putra, A. S., Rizaluddin, A. T., Kajiyama, M., & Ohi, H.
- Affiliations
- University of Tsukuba (JP)
- Ministry of Industry of the Republic of Indonesia (ID)
- Corresponding author
- Ohi, Hiroshi
- Venue
- Journal of Wood Science
- Published
- 2019-02-25
- Volume
- 65
- Issue
- 1
- Pages
- 10
- ISSN
- 1435-0211 (ISSN-L)
- 1611-4663
- OpenAlex
- W2930207663
- Cited by
- 18
- References
- 30
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 2
- FWCI
- 0.71
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- creativecommons.org/licenses/by/4.0 (tdm)
- Locations
- Journal of Wood Science (publishedVersion, cc-by)
- Institutional Repositories DataBase (IRDB) (publishedVersion)
- Terrestrial Environment Research Center (University of Tsukuba) (submittedVersion)
- Topics
- Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Lignin and Wood Chemistry
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Physical Sciences › Engineering › Building and Construction › Wood Treatment and Properties
- Keywords
- totally chlorine-free bleaching, prehydrolysis, peroxymonosulfuric acid, Eucalyptus globulus, lignin structure, xylan extraction, xylooligosaccharides, furfural production, alkali lignin, lignin molecular weight, chlorine dioxide, pulp viscosity, biorefinery
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