Fast pyrolysis of potassium impregnated poplar wood and characterization of its influence on the formation as well as properties of pyrolytic products.
Identifieur interne : 002694 ( Main/Exploration ); précédent : 002693; suivant : 002695Fast pyrolysis of potassium impregnated poplar wood and characterization of its influence on the formation as well as properties of pyrolytic products.
Auteurs : Hyewon Hwang [Corée du Sud] ; Shinyoung Oh ; Tae-Su Cho ; In-Gyu Choi ; Joon Weon ChoiSource :
- Bioresource technology [ 1873-2976 ] ; 2013.
Descripteurs français
- KwdFr :
- Biocarburants (analyse), Biomasse (MeSH), Biotechnologie (méthodes), Bois (effets des médicaments et des substances chimiques), Charbon de bois (composition chimique), Lignine (analyse), Métaux (analyse), Populus (effets des médicaments et des substances chimiques), Potassium (pharmacologie), Température élevée (MeSH), Thermogravimétrie (MeSH).
- MESH :
- analyse : Biocarburants, Lignine, Métaux.
- composition chimique : Charbon de bois.
- effets des médicaments et des substances chimiques : Bois, Populus.
- méthodes : Biotechnologie.
- pharmacologie : Potassium.
- Biomasse, Température élevée, Thermogravimétrie.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Biofuels, Lignin, Metals.
- chemical , chemistry : Charcoal.
- drug effects : Populus, Wood.
- methods : Biotechnology.
- chemical , pharmacology : Potassium.
- Biomass, Hot Temperature, Thermogravimetry.
Abstract
TGA results indicated that the maximum decomposition temperature of the biomass decreased from 373.9 to 359.0°C with increasing potassium concentration. For fast pyrolysis, char yield of potassium impregnated biomass doubled regardless of pyrolysis temperature compared to demineralized one. The presence of potassium also affected bio-oil properties. Water content increased from 14.4 to 19.7 wt% and viscosity decreased from 34 to 16.2 cSt, but the pH value of the bio-oil remained stable. Gas chromatography/mass spectroscopy (GC/MS) analysis revealed that potassium promoted thermochemical reactions, thus causing a decrease of levoglucosan and an increase of small molecules and lignin-derived phenols in bio-oil. Additionally, various forms of aromatic hydrocarbons, probably derived from lignins, were detected in non-condensed pyrolytic gas fractions.
DOI: 10.1016/j.biortech.2013.09.132
PubMed: 24185037
Affiliations:
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(MeSH)</term><term>Thermogravimétrie (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Biofuels</term><term>Lignin</term><term>Metals</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Charcoal</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Biocarburants</term><term>Lignine</term><term>Métaux</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Charbon de bois</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Bois</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Biotechnology</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Biotechnologie</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Potassium</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Potassium</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Hot Temperature</term><term>Thermogravimetry</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Température élevée</term><term>Thermogravimétrie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">TGA results indicated that the maximum decomposition temperature of the biomass decreased from 373.9 to 359.0°C with increasing potassium concentration. For fast pyrolysis, char yield of potassium impregnated biomass doubled regardless of pyrolysis temperature compared to demineralized one. The presence of potassium also affected bio-oil properties. Water content increased from 14.4 to 19.7 wt% and viscosity decreased from 34 to 16.2 cSt, but the pH value of the bio-oil remained stable. Gas chromatography/mass spectroscopy (GC/MS) analysis revealed that potassium promoted thermochemical reactions, thus causing a decrease of levoglucosan and an increase of small molecules and lignin-derived phenols in bio-oil. 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For fast pyrolysis, char yield of potassium impregnated biomass doubled regardless of pyrolysis temperature compared to demineralized one. The presence of potassium also affected bio-oil properties. Water content increased from 14.4 to 19.7 wt% and viscosity decreased from 34 to 16.2 cSt, but the pH value of the bio-oil remained stable. Gas chromatography/mass spectroscopy (GC/MS) analysis revealed that potassium promoted thermochemical reactions, thus causing a decrease of levoglucosan and an increase of small molecules and lignin-derived phenols in bio-oil. Additionally, various forms of aromatic hydrocarbons, probably derived from lignins, were detected in non-condensed pyrolytic gas fractions.</AbstractText><CopyrightInformation>Copyright © 2013 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hwang</LastName><ForeName>Hyewon</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Department of Forest Sciences and Research Institute for Agriculture and Life Science, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-921, Republic of Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Oh</LastName><ForeName>Shinyoung</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Cho</LastName><ForeName>Tae-Su</ForeName><Initials>TS</Initials></Author><Author ValidYN="Y"><LastName>Choi</LastName><ForeName>In-Gyu</ForeName><Initials>IG</Initials></Author><Author ValidYN="Y"><LastName>Choi</LastName><ForeName>Joon Weon</ForeName><Initials>JW</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research 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IdType="pubmed">24185037</ArticleId><ArticleId IdType="pii">S0960-8524(13)01574-5</ArticleId><ArticleId IdType="doi">10.1016/j.biortech.2013.09.132</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement><orgName><li>Université nationale de Séoul</li></orgName></list><tree><noCountry><name sortKey="Cho, Tae Su" sort="Cho, Tae Su" uniqKey="Cho T" first="Tae-Su" last="Cho">Tae-Su Cho</name><name sortKey="Choi, In Gyu" sort="Choi, In Gyu" uniqKey="Choi I" first="In-Gyu" last="Choi">In-Gyu Choi</name><name sortKey="Choi, Joon Weon" sort="Choi, Joon Weon" uniqKey="Choi J" first="Joon Weon" last="Choi">Joon Weon Choi</name><name sortKey="Oh, Shinyoung" sort="Oh, Shinyoung" uniqKey="Oh S" first="Shinyoung" last="Oh">Shinyoung Oh</name></noCountry><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Hwang, Hyewon" 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