Reaction Kinetics of Xylose to Furfural Catalyzed by Sulfonic Acid Resin
The kinetics of furfural preparation from xylose with DNW-Ⅱ sulfonic acid resin as catalyst was studied in the range of 398.15 K to 438.15 K.The kinetic model of the reaction was established,and the reaction rate constants of xylose degradation,furfural degradation and condensation reaction were obtained by fitting the experimental data.According to Arrhenius equation fitting,the activation energies were 41.5 kJ·mol-1,32.4 kJ·mol-1 and 36.2 kJ·mol-1,respectively.The kinetics equation of xylose to furfural catalyzed by sulfonic acid resin was established,which can accurately predict the change of furfural yield with time in the process of xylose to furfural.
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