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One‐Pot Conversion of Inulin to Furan Derivatives Catalyzed by Sulfated TiO 2 /Mordenite Solid Acid
Author(s) -
Shen X.,
Wang Y. X.,
Hu C. W.,
Qian K.,
Ji Z.,
Jin M.
Publication year - 2012
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201200190
Subject(s) - inulin , chemistry , mordenite , catalysis , hydrolysis , lewis acids and bases , fructose , organic chemistry , 5 hydroxymethylfurfural , heterogeneous catalysis , furan , selectivity , yield (engineering) , butanol , zeolite , ethanol , materials science , biochemistry , metallurgy
Abstract We prepared a sulfated TiO 2 /mordenite solid acid for the heterogeneous catalytic conversion of inulin (polysaccharide) to 5‐hydroxymethylfurfural and 2,5‐furancarboxaldehyde. The hydrolysis of inulin and the dehydration of fructose were performed by using a one‐pot method in a water/2‐butanol biphasic system. With an inulin conversion rate of 82.3 %, a high 5‐hydroxymethylfurfural yield of 61.5 % was obtained, which represents moderate catalytic reactivity and selectivity but facilitates the separation process comprehensively. The catalytic performance was attributed to the SO 4 2− groups and the Lewis acid sites on the titania surfaces. A delicate loading rate of titania over mordenite was critical to maintain sufficient active sites, whereas an appropriate porosity of the complex system was reserved for the diffusion of reactants and products.