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International Journal of Chemical Engineering
Volume 2014, Article ID 978708, 7 pages
http://dx.doi.org/10.1155/2014/978708
Research Article

Catalytic Transformation of Fructose and Sucrose to HMF with Proline-Derived Ionic Liquids under Mild Conditions

State-Local Joint Laboratory for Comprehensive Utilization of Biomass, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering (Ministry of Education), Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China

Received 19 January 2014; Revised 9 March 2014; Accepted 10 March 2014; Published 27 March 2014

Academic Editor: Dmitry Murzin

Copyright © 2014 Hu Li and Song Yang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

L-Proline derived ionic liquids (ILs) used as both solvent and catalyst were efficient for transformation of fructose and sucrose to 5-hydroxymethylfurfural (HMF) in the presence of water. Response surface methodology (RSM) was employed to optimize fructose dehydration process, and a maximum HMF yield of 73.6% could be obtained at 90°C after 50 min. The recycling of the IL exhibited an almost constant activity during five successive trials, and a possible reaction mechanism for the dehydration of fructose to HMF was proposed.