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http://hdl.handle.net/10773/20569
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DC Field | Value | Language |
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dc.contributor.author | Ferreira, Luis R. | pt |
dc.contributor.author | Lima, Sergio | pt |
dc.contributor.author | Neves, Patricia | pt |
dc.contributor.author | Antunes, Margarida M. | pt |
dc.contributor.author | Rocha, Silvia M. | pt |
dc.contributor.author | Pillinger, Martyn | pt |
dc.contributor.author | Portugal, Ines | pt |
dc.contributor.author | Valente, Anabela A. | pt |
dc.date.accessioned | 2017-12-07T19:51:46Z | - |
dc.date.issued | 2013 | pt |
dc.identifier.issn | 1385-8947 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20569 | - |
dc.description.abstract | Furfural, a valuable platform chemical that has the potential to replace a variety of oil/coal/gas derived materials and chemical products, is produced by the dehydration of o-xylose, which in turn is obtained from lignocellulosic biomass. Herein, the conversion of xylose in the presence of nanocrystalline zeolite beta in the H+-form, using water as solvent, was investigated. Detailed batch kinetic studies and products identifications techniques (H-1, C-13 NMR and comprehensive two-dimensional gas chromatography (GC x GC) combined with time-of-flight mass spectrometry (ToFMS)) provided mechanistic insights into the overall reaction process. The conversion of xylose to furfural is accompanied by several side reactions, forming complex reaction mixtures. A pseudo-homogeneous kinetic model was proposed that fitted quite well the experimental data. (C) 2012 Elsevier B.V. All rights reserved. | pt |
dc.language.iso | eng | pt |
dc.publisher | ELSEVIER SCIENCE SA | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F61648%2F2009/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F73540%2F2010/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | SOLID ACID CATALYSTS | pt |
dc.subject | D-XYLOSE | pt |
dc.subject | VOLATILE COMPONENTS | pt |
dc.subject | SUPERCRITICAL WATER | pt |
dc.subject | ACTIVE COMPOUNDS | pt |
dc.subject | HIGH-TEMPERATURE | pt |
dc.subject | SALMO-SALAR | pt |
dc.subject | DEHYDRATION | pt |
dc.subject | DEGRADATION | pt |
dc.subject | H-1-NMR | pt |
dc.title | Aqueous phase reactions of pentoses in the presence of nanocrystalline zeolite beta: Identification of by-products and kinetic modelling | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 772 | pt |
degois.publication.lastPage | 783 | pt |
degois.publication.title | CHEMICAL ENGINEERING JOURNAL | pt |
degois.publication.volume | 215 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1016/j.cej.2012.11.022 | pt |
dc.identifier.doi | 10.1016/j.cej.2012.11.022 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Aqueous phase reactions of pentoses in the presence of nanocrystalline zeolite beta Identification of by-products and kinetic modelling_10.1016j.cej.2012.11.022.pdf | 821.21 kB | Adobe PDF |
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