10.1002/cctc.201901981
ChemCatChem
COMMUNICATION
are separated on a Varian 100-5 amino S 250 x 4.6 mm (NH2) column, using a
water/acetonitrile (2/8 vol.) as eluent, at
Quantification is performed using a refractive index detector (Waters 2410).
selective to xylitol over the 100-150°C range. Finally, our study
shows that a moderate catalyst deactivation occurs during the two
a
flow rate of 0.8 mL.min-1.
first cycles of reaction, whereas further cycles induce
a
conversion decrease (58%) but the selectivity to xylitol remains at
a high level (86%).
Acknowledgements
The authors would like to thank the Poitou-Charentes region for
the funding of the PhD grant of Maïté Audemar. ANR agency for
the funding of FurCab Project ANR-15-CE07-0016. Région
Nouvelle Aquitaine for the funding of this project through the FR
CNRS INCREASE 3707, the chaire TECHNOGREEN and
FEDER, the University of Poitiers and the CNRS for their financial
support. Chevreul Institute (FR 2638), Ministère de
l’Enseignement Supérieur et de la Recherche and Région Hauts-
de-France are also acknowledged for supporting this work.
Keywords: xylose • hydrogenation • catalysis • xylitol • cobalt
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Figure 6. Thermal analysis of Co/SiO2 catalyst after reaction.
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Experimental Section
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g of xylose is added to 10 mL of water. 0,025 g of activated catalyst is added in
a batch reactor of 75 mL total volume. The reactor is closed and pressurised
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Analytical methods: yields in xylitol and conversion of xylose are determined by
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