PoplarV1, Main, Exploration, bibRecord, 003266

Fiber length and pulping characteristics of switchgrass, alfalfa stems, hybrid poplar and willow biomasses.

Identifieur interne : 003266 ( Main/Exploration ); précédent : 003265; suivant : 003267

Fiber length and pulping characteristics of switchgrass, alfalfa stems, hybrid poplar and willow biomasses.

Auteurs : Jun Ai [États-Unis] ; Ulrike Tschirner

Source :

Bioresource technology [ 1873-2976 ] ; 2010.

RBID : pubmed:19720527

Descripteurs français

KwdFr :
- Densitométrie (méthodes), Manipulation des aliments (méthodes), Medicago sativa (composition chimique), Modèles chimiques (MeSH), Parties aériennes de plante (composition chimique), Poaceae (composition chimique), Populus (composition chimique), Résistance à la compression (MeSH), Salix (composition chimique), Simulation numérique (MeSH), Test de matériaux (méthodes).
MESH :
- composition chimique : Medicago sativa, Parties aériennes de plante, Poaceae, Populus, Salix.
- méthodes : Densitométrie, Manipulation des aliments, Test de matériaux.
- Modèles chimiques, Résistance à la compression, Simulation numérique.

English descriptors

KwdEn :
- Compressive Strength (MeSH), Computer Simulation (MeSH), Densitometry (methods), Food Handling (methods), Materials Testing (methods), Medicago sativa (chemistry), Models, Chemical (MeSH), Plant Components, Aerial (chemistry), Poaceae (chemistry), Populus (chemistry), Salix (chemistry).
MESH :
- chemistry : Medicago sativa, Plant Components, Aerial, Poaceae, Populus, Salix.
- methods : Densitometry, Food Handling, Materials Testing.
- Compressive Strength, Computer Simulation, Models, Chemical.

Abstract

Switchgrass (Panicum virgatum), alfalfa stems (Medicago sativa), second year growth hybrid poplar (Populus) and willow (Salix spp.) were examined to determine fiber characteristics, pulping behavior and paper properties. Alfalfa stems and switchgrass both showed length weighted average fiber length (LWW) of 0.78 mm, a very narrow fiber length distribution and high fines content. Willow and hybrid poplar have lower fines content but a very low average fiber length (0.42 and 0.48 mm LWW). In addition, the four biomass species showed distinctly different chemical compositions. Switchgrass was defibered successfully using Soda and Soda Anthraquinone (AQ) pulping and demonstrated good paper properties. Both fast-growing wood species pulped well using the Kraft process, and showed acceptable tensile strength, but low tear strength. Alfalfa stems reacted very poorly to Soda and Soda AQ pulping but responded well to Kraft and Kraft AQ. Pulps with tensile and tear strength considerably higher than those found for commercial aspen pulps were observed for alfalfa. All four biomass species examined demonstrated low pulp yield. The highest yields were obtained with poplar and switchgrass (around 43%). Considering the short fibers and low yields, all four biomass types will likely only be used in paper manufacturing if they offer considerable economic advantage over traditional pulp wood.

DOI: 10.1016/j.biortech.2009.07.090
PubMed: 19720527

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Compressive Strength (MeSH)</term>
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<term>Food Handling (methods)</term>
<term>Materials Testing (methods)</term>
<term>Medicago sativa (chemistry)</term>
<term>Models, Chemical (MeSH)</term>
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<term>Salix (chemistry)</term>
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<term>Manipulation des aliments (méthodes)</term>
<term>Medicago sativa (composition chimique)</term>
<term>Modèles chimiques (MeSH)</term>
<term>Parties aériennes de plante (composition chimique)</term>
<term>Poaceae (composition chimique)</term>
<term>Populus (composition chimique)</term>
<term>Résistance à la compression (MeSH)</term>
<term>Salix (composition chimique)</term>
<term>Simulation numérique (MeSH)</term>
<term>Test de matériaux (méthodes)</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Medicago sativa</term>
<term>Plant Components, Aerial</term>
<term>Poaceae</term>
<term>Populus</term>
<term>Salix</term>
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<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Medicago sativa</term>
<term>Parties aériennes de plante</term>
<term>Poaceae</term>
<term>Populus</term>
<term>Salix</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Densitometry</term>
<term>Food Handling</term>
<term>Materials Testing</term>
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<keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Densitométrie</term>
<term>Manipulation des aliments</term>
<term>Test de matériaux</term>
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<term>Computer Simulation</term>
<term>Models, Chemical</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Switchgrass (Panicum virgatum), alfalfa stems (Medicago sativa), second year growth hybrid poplar (Populus) and willow (Salix spp.) were examined to determine fiber characteristics, pulping behavior and paper properties. Alfalfa stems and switchgrass both showed length weighted average fiber length (LWW) of 0.78 mm, a very narrow fiber length distribution and high fines content. Willow and hybrid poplar have lower fines content but a very low average fiber length (0.42 and 0.48 mm LWW). In addition, the four biomass species showed distinctly different chemical compositions. Switchgrass was defibered successfully using Soda and Soda Anthraquinone (AQ) pulping and demonstrated good paper properties. Both fast-growing wood species pulped well using the Kraft process, and showed acceptable tensile strength, but low tear strength. Alfalfa stems reacted very poorly to Soda and Soda AQ pulping but responded well to Kraft and Kraft AQ. Pulps with tensile and tear strength considerably higher than those found for commercial aspen pulps were observed for alfalfa. All four biomass species examined demonstrated low pulp yield. The highest yields were obtained with poplar and switchgrass (around 43%). Considering the short fibers and low yields, all four biomass types will likely only be used in paper manufacturing if they offer considerable economic advantage over traditional pulp wood.</div>
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<Abstract><AbstractText>Switchgrass (Panicum virgatum), alfalfa stems (Medicago sativa), second year growth hybrid poplar (Populus) and willow (Salix spp.) were examined to determine fiber characteristics, pulping behavior and paper properties. Alfalfa stems and switchgrass both showed length weighted average fiber length (LWW) of 0.78 mm, a very narrow fiber length distribution and high fines content. Willow and hybrid poplar have lower fines content but a very low average fiber length (0.42 and 0.48 mm LWW). In addition, the four biomass species showed distinctly different chemical compositions. Switchgrass was defibered successfully using Soda and Soda Anthraquinone (AQ) pulping and demonstrated good paper properties. Both fast-growing wood species pulped well using the Kraft process, and showed acceptable tensile strength, but low tear strength. Alfalfa stems reacted very poorly to Soda and Soda AQ pulping but responded well to Kraft and Kraft AQ. Pulps with tensile and tear strength considerably higher than those found for commercial aspen pulps were observed for alfalfa. All four biomass species examined demonstrated low pulp yield. The highest yields were obtained with poplar and switchgrass (around 43%). Considering the short fibers and low yields, all four biomass types will likely only be used in paper manufacturing if they offer considerable economic advantage over traditional pulp wood.</AbstractText>
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Fiber length and pulping characteristics of switchgrass, alfalfa stems, hybrid poplar and willow biomasses.

Fiber length and pulping characteristics of switchgrass, alfalfa stems, hybrid poplar and willow biomasses.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki