authors |
Ferreira, LR; Lima, S; Neves, P; Antunes, MM; Rocha, SM; Pillinger, M; Portugal, I; Valente, AA |
nationality |
International |
journal |
CHEMICAL ENGINEERING JOURNAL |
author keywords |
Xylose; Furfural; Acid catalysis; Zeolite beta; Kinetic modelling |
keywords |
SOLID ACID CATALYSTS; D-XYLOSE; VOLATILE COMPONENTS; SUPERCRITICAL WATER; ACTIVE COMPOUNDS; HIGH-TEMPERATURE; SALMO-SALAR; DEHYDRATION; DEGRADATION; H-1-NMR |
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. |
publisher |
ELSEVIER SCIENCE SA |
issn |
1385-8947 |
year published |
2013 |
volume |
215 |
beginning page |
772 |
ending page |
783 |
digital object identifier (doi) |
10.1016/j.cej.2012.11.022 |
web of science category |
Engineering, Environmental; Engineering, Chemical |
subject category |
Engineering |
unique article identifier |
WOS:000316032100093
|