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Hydrothermal pretreatment of wood by mild steam explosion and hot water extraction
KTH, Skolan för kemivetenskap (CHE), Centra, Wallenberg Wood Science Center. Chalmers University of Technology, Sweden.
KTH, Skolan för kemivetenskap (CHE), Centra, Wallenberg Wood Science Center. Chalmers University of Technology, Sweden.
2017 (Engelska)Ingår i: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 241, s. 120-126Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The aim of this work was to compare the two most common hydrothermal pre-treatments for wood – mild steam explosion and hot water extraction – both with the prospect of enabling extraction of hemicelluloses and facilitating further processing. Although both involve autohydrolysis of the lignocellulosic tissue, they are performed under different conditions: the most prominent difference is the rapid, disintegrating, discharge employed in the steam explosion opening up the structure. In this comparative study, the emphasis was placed on local composition of the pre-treated wood chips (of industrially relevant size). The results show that short hot water extraction treatments lead to significant variations in the local composition within the wood chips, while steam explosion accomplishes a comparably more even removal of hemicelluloses due to the advective mass transport during the explosion step.

Ort, förlag, år, upplaga, sidor
Elsevier, 2017. Vol. 241, s. 120-126
Nyckelord [en]
Autohydrolysis, Hot water extraction, Local properties, Pre-treatment, Steam explosion
Nationell ämneskategori
Trävetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-209494DOI: 10.1016/j.biortech.2017.05.061ISI: 000405502400016PubMedID: 28551432Scopus ID: 2-s2.0-85019595719OAI: oai:DiVA.org:kth-209494DiVA, id: diva2:1113020
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse
Anmärkning

QC 20170621

Tillgänglig från: 2017-06-21 Skapad: 2017-06-21 Senast uppdaterad: 2017-08-02Bibliografiskt granskad

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Hasani, MerimaTheliander, Hans
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