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dc.contributor.authorChen, Chengcong
dc.contributor.authorAlén, Raimo
dc.contributor.authorLehto, Joni
dc.contributor.authorPakkanen, Hannu
dc.date.accessioned2017-04-05T10:03:04Z
dc.date.available2018-01-01T22:45:11Z
dc.date.issued2016
dc.identifier.citationChen, C., Alén, R., Lehto, J., & Pakkanen, H. (2016). Combustion properties of spruce black liquor droplets : Sulfur-free pulping and influence of hot-water pretreatment. <em>Nordic Pulp and Paper Research Journal</em>, 31 (4), 532-540.
dc.identifier.otherTUTKAID_72028
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/53500
dc.description.abstractHot-water pretreatment of lignocellulosics prior to sulfur-free alkaline pulping is an interesting approach for recovering value-added carbohydrate- and lignin-derived materials. This paper investigated the chemical composition variations and combustion properties of the black liquors (BLs) from three different cooking processes: two sulfur-free soda-anthraquinone (soda-AQ) and oxygen-alkali (O2-NaOH) cooks and kraft cook, before and after hot-water pretreatment of the spruce sawdust. Relatively less aliphatic acids but more lignin were present in the BLs after hot-water pretreatment as cooking time prolonged. In general, the burning time decreased as follows: soda-AQ BL > O2-NaOH BL ≅ kraft BL. With the same cooking time, the increase in the total burning time for soda-AQ BLs compared with kraft BLs was 11-17% (without pretreatment) and 25-39% (with pretreatment). Compared to kraft BLs with the same cooking time, the swelling for soda-AQ and O2-NaOH BLs decreased by 8-25% and 4-23%, respectively.
dc.language.isoeng
dc.publisherSvenska Pappers- och Cellulosaingenioersfoereningen
dc.relation.ispartofseriesNordic Pulp and Paper Research Journal
dc.subject.otherspruce
dc.subject.otherblack liquor
dc.subject.othercombustion properties
dc.subject.otherhot-water pretreatment
dc.subject.othersulfur-free pulping
dc.titleCombustion properties of spruce black liquor droplets : Sulfur-free pulping and influence of hot-water pretreatment
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201704041895
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineSoveltava kemia
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-04-04T12:15:08Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange532-540
dc.relation.issn0283-2631
dc.relation.volume31
dc.type.versionpublishedVersion
dc.rights.copyright© The Authors & Nordic Pulp and Paper Research Journal, 2016. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial License.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by-nc/4.0/
dc.relation.doi10.3183/NPPRJ-2016-31-04-p531-540


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© The Authors & Nordic Pulp and Paper Research Journal, 2016. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial License.
Except where otherwise noted, this item's license is described as © The Authors & Nordic Pulp and Paper Research Journal, 2016. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial License.