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Molecules 2016, 21(8), 1102; doi:10.3390/molecules21081102

Furfural Production from d-Xylose and Xylan by Using Stable Nafion NR50 and NaCl in a Microwave-Assisted Biphasic Reaction

1
Université de Technologie de Compiègne (UTC), CS 60319, 60203 Compiègne Cedex, France
2
Department of Chemistry, Faculty of Technology, 760 01 Zlin, Czech Republic
3
Ecole Supérieure de Chimie Organique et Minérale (ESCOM), 1 rue du Réseau Jean-Marie Buckmaster, 60200 Compiègne, France
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 9 July 2016 / Revised: 5 August 2016 / Accepted: 10 August 2016 / Published: 22 August 2016
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Abstract

Pentose dehydration and direct transformation of xylan into furfural were performed in a water-cyclopentyl methyl ether (CPME) biphasic system under microwave irradiation. Heated up between 170 and 190 °C in the presence of Nafion NR50 and NaCl, d-xylose, l-arabinose and xylan gave furfural with maximum yields of 80%, 42% and 55%, respectively. The influence of temperature and reaction time on the reaction kinetics was discussed. This study was also completed by the survey of different reactant ratios, such as organic layer-water or catalyst-inorganic salt ratios. The exchange between proton and cation induced by an excess of NaCl was monitored, and a synergetic effect between the remaining protons and the released HCl was also discovered. View Full-Text
Keywords: furfural; d-xylose; xylan; Nafion NR50; biphasic system; microwave-assisted dehydration furfural; d-xylose; xylan; Nafion NR50; biphasic system; microwave-assisted dehydration
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Le Guenic, S.; Gergela, D.; Ceballos, C.; Delbecq, F.; Len, C. Furfural Production from d-Xylose and Xylan by Using Stable Nafion NR50 and NaCl in a Microwave-Assisted Biphasic Reaction. Molecules 2016, 21, 1102.

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