Dehydration of fructose to 5-hydroxymethylfurfural over MeSAPOs synthesized from bauxite

被引：29
|
作者：
Sun, Xueni [1 ]
Wang, Jun [1 ]
Chen, Jingjing [1 ]
Zheng, Jingjing [1 ]
Shao, Hui [1 ]
Huang, Chunxiang [1 ]
机构：
[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Sch Petrochem Engn, Changzhou 213164, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2018年 / 259卷
关键词：
MeSAPOs molecular sieve; Bauxite; Fructose dehydration; 5-hydroxymethylfurfural; CRYSTALLIZATION MECHANISM; MOLECULAR-SIEVES; IONIC LIQUID; CONVERSION; SAPO-34; WATER; EFFICIENT; ZIRCONIA; METHANOL; BIOMASS;
D O I：
10.1016/j.micromeso.2017.10.022
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of metal-containing silicoaluminophosphate (MeSAPOs) molecular sieves was synthesized by the hydrothermal method, where bauxite was used as the source for single Si, Al and Me (Me = Fe, Ti). The products with different compositions, including MeSAPO-5, MeSAPO-11, MeSAPO-34 and MeSAPO-44, were all characterized by XRD, SEM, UV-vis and NH3-TPD. The catalytic performance of those MeSAPOs for dehydration of fructose to 5-hydroxymethylfurfural (HMF) were investigated. The results indicated that the catalytic performance decreased in the order of MeSAPO-11 > MeSAPO-5 > MeSAPO-34 > MeSAPO-44, which corresponded to the order of the total number of the acid sites. Among those MeSAPOs molecular sieves, MeSAPO-11 had the highest HMF yield of 65.1% at 170 degrees C after 2.5 h, due to more acid sites. Research results also indicated that the dehydration reaction rate and HMF yield were related to the acidity.
引用
收藏
页码：238 / 243
页数：6
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