Show simple item record

dc.contributor.authorChen, Chengcong
dc.contributor.authorAlén, Raimo
dc.contributor.authorLehto, Joni
dc.contributor.authorPakkanen, Hannu
dc.date.accessioned2017-04-04T08:56:15Z
dc.date.available2017-04-04T08:56:15Z
dc.date.issued2016
dc.identifier.citationChen, C., Alén, R., Lehto, J., & Pakkanen, H. (2016). Combustion behavior of kraft black liquor droplets from hot water pretreated hardwood and softwood chips. <em>Tappi Journal</em>, 15 (11), 685-691.
dc.identifier.otherTUTKAID_72296
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/53477
dc.description.abstractThis paper describes the combustion behavior of birch and spruce kraft black liquors obtained from an integrated forest biorefinery concept in which a hot water extraction of chips was performed before pulping. This pretreatment, aiming mainly at the recovery of various hemicellulose-derived materials, increased the concentrations of lignin and hydroxy acids in black liquors, compared with those in the reference black liquors without any process modification. On the other hand, the pretreatment decreased the concentrations of volatile acids and other organics (extractives and hemicellulose residues). Because of these characteristic changes, the total burning times (pyrolysis time plus char burning time) of the reference black liquors were somewhat longer than those of black liquors from the modified cooking process. The novel biorefinery-based black liquors also swell more than the conventional ones. This phenomenon was primarily associated with the combined effect of high-molar-mass lignin fragments and hydroxy acids. All of the detected changes in combustion behavior were more intense for birch black liquors than for spruce black liquors.
dc.language.isoeng
dc.publisherTAPPI Press
dc.relation.ispartofseriesTappi Journal
dc.relation.urihttp://imisrise.tappi.org/TAPPI/Products/16/NOV/16NOV685.aspx
dc.subject.otherblack liquor
dc.subject.othercombustion
dc.subject.otherburning time
dc.subject.otherkraft process
dc.subject.otherbiorefineries
dc.titleCombustion behavior of kraft black liquor droplets from hot water pretreated hardwood and softwood chips
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201703291813
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineSoveltava kemia
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-03-29T15:15:48Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange685-691
dc.relation.issn0734-1415
dc.relation.volume15
dc.type.versionacceptedVersion
dc.rights.copyright© 2016 The Authors and TAPPI Journal. This is a final draft version of a paper whose definitive and final version is published by TAPPI Press. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record