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

页码：238 / 243

页数：6

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