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Absence of expected side-reactions in the dehydration reaction of fructose to HMF in water over niobic acid catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
52200 46866 2011 5 PDF Available
Title
Absence of expected side-reactions in the dehydration reaction of fructose to HMF in water over niobic acid catalyst
Abstract

The catalytic dehydration of fructose (FRU) to 5-hydroxymethylfurfural (HMF) usually runs with the formation of several side products. Among these, levulinic acid (LA) is often reported as the product of a consecutive reaction of HMF re-hydration. In this work, side reactions of the dehydration of FRU performed in very green conditions (water as solvent and niobic acid as solid catalyst) are taken into account. Experimental evidences are given that, in the used conditions: i) HMF is a final stable product, ii) no formation of LA, either deriving from a consecutive reaction of HMF or directly from FRU transformation, was observed, and iii) LA does not react to give condensation products with any other chemical species present in the reaction mixture.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► 5-hydroxymethylfurfural is a final stable product. ► No formation of levulinic acid has been observed. ► Levulinic acid, if added, does not react with any other chemical species in the reaction mixture.

Keywords
Fructose; 5-hydroxymethylfurfural; Levulinic acid; Niobic acid; Heterogeneous catalysis in water.
First Page Preview
Absence of expected side-reactions in the dehydration reaction of fructose to HMF in water over niobic acid catalyst
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 12, 1 July 2011, Pages 1122–1126
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis