On the kinetics of the isomerization of glucose to fructose using Sn-Beta

Process design and techno-economic evaluation of glucose isomerization on Sn-Beta require reliable catalytic reaction rate expressions and kinetic constants. Here, the isomerization of sugars (glucose, fructose and mannose) in water using Sn-Beta is investigated at various temperatures ranging from...

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Bibliographic Details
Published in:Chemical engineering science 2014-09, Vol.116, p.235-242
Main Authors: Rajabbeigi, Nafiseh, Torres, Ana I., Lew, Christopher M., Elyassi, Bahman, Ren, Limin, Wang, Zhuopeng, Je Cho, Hong, Fan, Wei, Daoutidis, Prodromos, Tsapatsis, Michael
Format: Article
Language:English
Subjects:
Biomass
Constants
Deactivation
Fructose
Glucose
Isomerization
Kinetics
Mathematical models
Reaction kinetics
Sn-Beta
Tin
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Summary:Process design and techno-economic evaluation of glucose isomerization on Sn-Beta require reliable catalytic reaction rate expressions and kinetic constants. Here, the isomerization of sugars (glucose, fructose and mannose) in water using Sn-Beta is investigated at various temperatures ranging from 70 to 130°C. It is shown that the catalyst deactivates during the course of the reaction. A phenomenological model that describes the isomerization reaction in the presence of deactivation is developed and the corresponding kinetic constants are estimated from experimental data. •The kinetics of the glucose–fructose–mannose isomerization using Sn-beta were studied.•Experiments were performed in water in the 70–130°C range.•It is shown that the catalyst deactivates and by-products are formed during the reaction.•Phenomenological kinetic models accounting for these were developed and validated.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2014.04.031