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Selective Catalytic Dehydration of Xylose to Furfural and Fructose and Glucose to 5‐Hydroximethylfurfural (HMF) Using Preyssler Heteropolyacid
Author(s) -
Pardo Cuervo Oscar H.,
Romanelli Gustavo P.,
Cubillos Jairo A.,
Rojas Hugo A.,
Martínez José J.
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000657
Subject(s) - furfural , yield (engineering) , xylose , catalysis , fructose , chemistry , selectivity , dehydration , solvent , organic chemistry , nuclear chemistry , fermentation , biochemistry , materials science , metallurgy
Catalytic dehydration of xylose to yield furfural was studied by testing different heteropolyacid‐type catalysts. Preyssler heteropolyacid (HPA‐Preyssler) (H 14 [NaP 5 W 30 O 110 ]) was the most efficient. Under the optimal reaction conditions, xylose was dehydrated into furfural with 73% of yield and 95% of selectivity using DMSO as solvent at 140 °C for 4 h. The HPA‐Preyssler catalyst also exhibited good catalytic activity in the dehydration of fructose and glucose to yield 5‐hydroxymethylfurfural (HMF). Thus, from fructose a yield and selectivity to HMF of 97% and 98%, respectively, was obtained in just 10 min, while from glucose, 91% of conversion and 23% of yield were obtained after 9 h. An easy and efficient methodology for the recovery and reuse of HPA‐Preyssler in at least six reaction cycles without appreciable loss of its initial catalytic activity is reported.