Journal
CHEMICAL ENGINEERING JOURNAL
Volume 215, Issue -, Pages 772-783Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.11.022
Keywords
Xylose; Furfural; Acid catalysis; Zeolite beta; Kinetic modelling
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT) [POCTI/QUI/56112/2004]
- Programa Operacional Ciencia e Inovacao (POCI) [POCTI/QUI/56112/2004]
- Orcamento do Estado (OE) [POCTI/QUI/56112/2004]
- Fundo Europeu de Desenvolvimento Regional (FEDER) [POCTI/QUI/56112/2004]
- CICECO [Pest-C/CTM/LA0011/2011]
- QOPNA (Research Unit) [62/94, PEst-C/QUI/UI0062/2011]
- FCT [SFRH/BD/61648/2009, SRFH/BPD/23765/2005]
- PN [SFRH/BPD/73540/2010]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/61648/2009] Funding Source: FCT
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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.
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