Characterization of white poplar and eucalyptus after ionic liquid pretreatment as a function of biomass loading using X-ray diffraction and small angle neutron scattering.
Identifieur interne : 001440 ( Main/Corpus ); précédent : 001439; suivant : 001441Characterization of white poplar and eucalyptus after ionic liquid pretreatment as a function of biomass loading using X-ray diffraction and small angle neutron scattering.
Auteurs : Xueming Yuan ; Yonghao Duan ; Lilin He ; Seema Singh ; Blake Simmons ; Gang ChengSource :
- Bioresource technology [ 1873-2976 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Cellulose, Imidazoles, Ionic Liquids.
- chemistry : Eucalyptus, Populus.
- Biomass, Hydrolysis, Neutron Diffraction, Scattering, Small Angle, X-Ray Diffraction.
Abstract
A systematic study was performed to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110°C for 3h at biomass loadings of 5, 10, 15, 20 and 25wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively. SANS detected pores of radii ranging from ∼25 to 625Å, enabling assessment of contributions of pores with different sizes to increased porosity after pretreatment. Contrasting dependences of sugar conversion on white poplar and eucalyptus as a function of biomass loading were observed and cellulose crystalline structure was found to play an important role.
DOI: 10.1016/j.biortech.2017.02.014
PubMed: 28214697
Links to Exploration step
pubmed:28214697Le document en format XML
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<series><title level="j">Bioresource technology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term>
<term>Cellulose (chemistry)</term>
<term>Eucalyptus (chemistry)</term>
<term>Hydrolysis (MeSH)</term>
<term>Imidazoles (chemistry)</term>
<term>Ionic Liquids (chemistry)</term>
<term>Neutron Diffraction (MeSH)</term>
<term>Populus (chemistry)</term>
<term>Scattering, Small Angle (MeSH)</term>
<term>X-Ray Diffraction (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Cellulose</term>
<term>Imidazoles</term>
<term>Ionic Liquids</term>
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<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Eucalyptus</term>
<term>Populus</term>
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<keywords scheme="MESH" xml:lang="en"><term>Biomass</term>
<term>Hydrolysis</term>
<term>Neutron Diffraction</term>
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<front><div type="abstract" xml:lang="en">A systematic study was performed to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110°C for 3h at biomass loadings of 5, 10, 15, 20 and 25wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively. SANS detected pores of radii ranging from ∼25 to 625Å, enabling assessment of contributions of pores with different sizes to increased porosity after pretreatment. Contrasting dependences of sugar conversion on white poplar and eucalyptus as a function of biomass loading were observed and cellulose crystalline structure was found to play an important role.</div>
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<Abstract><AbstractText>A systematic study was performed to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110°C for 3h at biomass loadings of 5, 10, 15, 20 and 25wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively. SANS detected pores of radii ranging from ∼25 to 625Å, enabling assessment of contributions of pores with different sizes to increased porosity after pretreatment. Contrasting dependences of sugar conversion on white poplar and eucalyptus as a function of biomass loading were observed and cellulose crystalline structure was found to play an important role.</AbstractText>
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