Steam refining as an alternative to steam explosion.
Identifieur interne : 002B19 ( Main/Corpus ); précédent : 002B18; suivant : 002B20Steam refining as an alternative to steam explosion.
Auteurs : Fokko Schütt ; Bj Rge Westereng ; Svein J. Horn ; Jürgen Puls ; Bodo SaakeSource :
- Bioresource technology [ 1873-2976 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical : Steam.
- chemistry : Populus.
- Hydrolysis, Volatilization.
Abstract
In steam pretreatment the defibration is usually achieved by an explosion at the end of the treatment, but can also be carried out in a subsequent refiner step. A steam explosion and a steam refining unit were compared by using the same raw material and pretreatment conditions, i.e. temperature and time. Smaller particle size was needed for the steam explosion unit to obtain homogenous slurries without considerable amounts of solid chips. A higher amount of volatiles could be condensed from the vapour phase after steam refining. The results from enzymatic hydrolysis showed no significant differences. It could be shown that, beside the chemical changes in the cell wall, the decrease of the particle size is the decisive factor to enhance the enzymatic accessibility while the explosion effect is not required.
DOI: 10.1016/j.biortech.2012.02.011
PubMed: 22377475
Links to Exploration step
pubmed:22377475Le document en format XML
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<author><name sortKey="Schutt, Fokko" sort="Schutt, Fokko" uniqKey="Schutt F" first="Fokko" last="Schütt">Fokko Schütt</name>
<affiliation><nlm:affiliation>Institute of Wood Technology and Wood Biology, Johann Heinrich von Thünen-Institut (vTI), Leuschner Str. 91B, 21031 Hamburg, Germany.</nlm:affiliation>
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<author><name sortKey="Westereng, Bj Rge" sort="Westereng, Bj Rge" uniqKey="Westereng B" first="Bj Rge" last="Westereng">Bj Rge Westereng</name>
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<author><name sortKey="Horn, Svein J" sort="Horn, Svein J" uniqKey="Horn S" first="Svein J" last="Horn">Svein J. Horn</name>
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<author><name sortKey="Puls, Jurgen" sort="Puls, Jurgen" uniqKey="Puls J" first="Jürgen" last="Puls">Jürgen Puls</name>
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<author><name sortKey="Saake, Bodo" sort="Saake, Bodo" uniqKey="Saake B" first="Bodo" last="Saake">Bodo Saake</name>
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<author><name sortKey="Schutt, Fokko" sort="Schutt, Fokko" uniqKey="Schutt F" first="Fokko" last="Schütt">Fokko Schütt</name>
<affiliation><nlm:affiliation>Institute of Wood Technology and Wood Biology, Johann Heinrich von Thünen-Institut (vTI), Leuschner Str. 91B, 21031 Hamburg, Germany.</nlm:affiliation>
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<author><name sortKey="Westereng, Bj Rge" sort="Westereng, Bj Rge" uniqKey="Westereng B" first="Bj Rge" last="Westereng">Bj Rge Westereng</name>
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<author><name sortKey="Horn, Svein J" sort="Horn, Svein J" uniqKey="Horn S" first="Svein J" last="Horn">Svein J. Horn</name>
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<author><name sortKey="Puls, Jurgen" sort="Puls, Jurgen" uniqKey="Puls J" first="Jürgen" last="Puls">Jürgen Puls</name>
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<author><name sortKey="Saake, Bodo" sort="Saake, Bodo" uniqKey="Saake B" first="Bodo" last="Saake">Bodo Saake</name>
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<series><title level="j">Bioresource technology</title>
<idno type="eISSN">1873-2976</idno>
<imprint><date when="2012" type="published">2012</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Hydrolysis (MeSH)</term>
<term>Populus (chemistry)</term>
<term>Steam (MeSH)</term>
<term>Volatilization (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Steam</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term>
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<keywords scheme="MESH" xml:lang="en"><term>Hydrolysis</term>
<term>Volatilization</term>
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<front><div type="abstract" xml:lang="en">In steam pretreatment the defibration is usually achieved by an explosion at the end of the treatment, but can also be carried out in a subsequent refiner step. A steam explosion and a steam refining unit were compared by using the same raw material and pretreatment conditions, i.e. temperature and time. Smaller particle size was needed for the steam explosion unit to obtain homogenous slurries without considerable amounts of solid chips. A higher amount of volatiles could be condensed from the vapour phase after steam refining. The results from enzymatic hydrolysis showed no significant differences. It could be shown that, beside the chemical changes in the cell wall, the decrease of the particle size is the decisive factor to enhance the enzymatic accessibility while the explosion effect is not required.</div>
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<Month>May</Month>
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<Title>Bioresource technology</Title>
<ISOAbbreviation>Bioresour Technol</ISOAbbreviation>
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<ArticleTitle>Steam refining as an alternative to steam explosion.</ArticleTitle>
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<Abstract><AbstractText>In steam pretreatment the defibration is usually achieved by an explosion at the end of the treatment, but can also be carried out in a subsequent refiner step. A steam explosion and a steam refining unit were compared by using the same raw material and pretreatment conditions, i.e. temperature and time. Smaller particle size was needed for the steam explosion unit to obtain homogenous slurries without considerable amounts of solid chips. A higher amount of volatiles could be condensed from the vapour phase after steam refining. The results from enzymatic hydrolysis showed no significant differences. It could be shown that, beside the chemical changes in the cell wall, the decrease of the particle size is the decisive factor to enhance the enzymatic accessibility while the explosion effect is not required.</AbstractText>
<CopyrightInformation>Copyright © 2012 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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<Author ValidYN="Y"><LastName>Puls</LastName>
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<Author ValidYN="Y"><LastName>Saake</LastName>
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<MeshHeading><DescriptorName UI="D013227" MajorTopicYN="Y">Steam</DescriptorName>
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<MeshHeading><DescriptorName UI="D014835" MajorTopicYN="N">Volatilization</DescriptorName>
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