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Fructose dehydration in methanol

Mol, G. (2017) Fructose dehydration in methanol. Master's Thesis / Essay, Chemical Engineering.

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Fructose dehydration is one of the ways to produce HMF, a biobased building block. In this work a kinetic model is developed for this reaction. To prevent side reactions to humins, methanol was used as a solvent. In total 85 experiments with varying temperature (100°C or 120°C), initial concentration (0.1, 0.2 or 0.4 M) and acid concentration (8, 16 or 32 mM) were done with starting compound Fructose, HMF, MMF and LA. As a basis, the model from van Putten was used, which involves only first order reactions. Several models were tested, and finally a model as shown in Figure 1 was selected as the best model. All reactions were shown to be first order in reactant and acid, and reaction 2, -3, -4, 5 and -9 are also first order in water. Finally became clear that reaction two is not occurring, and was removed from the model which did not change the goodness of fit.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Chemical Engineering
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 08:31
Last Modified: 15 Feb 2018 08:31

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