NDLI: Dehydration of xylose and glucose to furan derivatives using bifunctional partially hydroxylated MgF<sub>2</sub> catalysts and N<sub>2</sub>-stripping

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Catalysis Science & Technology Vol - 4 Issue - 4

Catalysis Science & Technology Vol - 4 Issue - 3

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Dehydration of xylose and glucose to furan derivatives using bifunctional partially hydroxylated MgF₂ catalysts and N₂-stripping

Content Provider	Royal Society of Chemistry (RSC)
Author	Hemmann, F. Arias, P. L. Guo, Y. Kemnitz, E. Agirrezabal-Telleria, I.
Copyright Year	2014
Abstract	The current furfural production yield is low due to the use of non-selective homogeneous catalysts and expensive separation. In this work, partially hydroxylated MgF2 catalysts, synthesized using different water contents, were screened during xylose dehydration in water–toluene at 160 °C. The different Lewis/Brønsted ratios on the MgF2 catalysts showed that under-coordinated Mg can isomerize xylose to xylulose, whilst the surface OH-groups were responsible for the dehydration reactions. The presence of glucose as a co-carbohydrate reduced the furfural selectivity from 86 to 81%, whilst it also led to high 5-hydroxymethylfurfural selectivity. The tests catalyzed by MgF2 in combination with simultaneous N2-stripping showed that a furfural selectivity of 87% could be achieved using low xylose loadings. Moreover, the catalysts regenerated by H2O2 showed high activity during the dehydration tests in water–toluene at 160 °C.
Starting Page	1357
Ending Page	1368
Page Count	12
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	4
Issue Number	5
Journal	Catalysis Science & Technology
DOI	10.1039/c4cy00129j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Xylose Furfural Hydrogen peroxide Hydroxymethylfurfural Xylulose Glucose Dehydration reaction
Content Type	Text
Resource Type	Article
Subject	Catalysis

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