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Open AccessArticle

Optimization with Response Surface Methodology of Microwave-Assisted Conversion of Xylose to Furfural

1
Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
2
Centre for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Alejandro Rodríguez, Eduardo Espinosa and Sylvain Caillol
Molecules 2020, 25(16), 3574; https://doi.org/10.3390/molecules25163574
Received: 9 June 2020 / Revised: 19 July 2020 / Accepted: 30 July 2020 / Published: 6 August 2020
(This article belongs to the Special Issue Lignocellulosic Biomass)
The production of furfural from renewable sources, such as lignocellulosic biomass, has gained great interest within the concept of biorefineries. In lignocellulosic materials, xylose is the most abundant pentose, which forms the hemicellulosic part. One of the key steps in the production of furfural from biomass is the dehydration reaction of the pentoses. The objective of this work was to assess the conditions under which the concentration of furfural is maximized from a synthetic, monophasic, and homogeneous xylose medium. The experiments were carried out in a microwave reactor. FeCl3 in different proportions and sulfuric acid were used as catalysts. A two-level, three-factor experimental design was developed for this purpose. The results were further analyzed through a second experimental design and optimization was performed by response surface methodology. The best operational conditions for the highest furfural yield (57%) turned out to be 210 °C, 0.5 min, and 0.05 M FeCl3. View Full-Text
Keywords: lignocellulosic material; xylose; furfural; iron chloride; microwave reactor; biorefinery lignocellulosic material; xylose; furfural; iron chloride; microwave reactor; biorefinery
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Padilla-Rascón, C.; Romero-García, J.M.; Ruiz, E.; Castro, E. Optimization with Response Surface Methodology of Microwave-Assisted Conversion of Xylose to Furfural. Molecules 2020, 25, 3574.

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