Efficient dehydration of fructose into 5-hydroxymethylfurfural in aqueous medium over silica-included heteropolyacids. (20th January 2017)

• Record Type: Journal Article
• Authors: Lv, Guangqiang; Deng, Liangliang; Lu, Boqiong; Li, Jinlong; Hou, Xianglin; Yang, Yongxing
• Is Part Of: Journal of cleaner production. Volume 142:Part 4(2017)
• Page Start: 2244
• Page End: 2251
• Publication Date: 2017-01-20
• Subjects: Silica-included HPAs -- HMF -- Fructose dehydration -- Aqueous phase -- Heterogeneous catalysis; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2016.11.053
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: The dehydration of fructose in aqueous and biphasic system was studied using heteropolyacids, immobilized in silica, as catalyst. The catalysts were characterized by ICP-AES, nitrogen sorption, NH3 -TPD, TEM, FT-IR, XRD, and TGA. The effect of different parameters, such as reaction temperature, reaction time, catalyst loading and volume ratio of water with methyl isobutyl ketone (MIBK) was studied. Silica included tungstosilisic acid (HSiW) was found to function as an efficient catalyst for the transformation of fructose into 5-hydroxymethylfurfural in aqueous phase. Addition of MIBK into the reaction system can increase both of fructose conversion and HMF selectivity. Besides, MIBK showed a positive effect in increasing the stability of the catalyst by suppressing the formation and deposition of humins over catalyst surface. After the third catalysis cycles, a stabilization of the catalytic activity was observed.