Transesterification of glycerol with dimethyl carbonate over calcined Ca-Al hydrocalumite

被引：76
|
作者：
Zheng, Liping [1 ]
Xia, Shuixin [1 ]
Lu, Xiuyang [2 ]
Hou, Zhaoyin [1 ]
机构：
[1] Zhejiang Univ, Dept Chem, Key Lab Applied Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Chem & Biol Engn, Hangzhou 310027, Zhejiang, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2015年 / 36卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Glycerol; Dimethyl carbonate; Transesterification; Glycerol carbonate; Calcium-aluminum hydrocalumite; LAYERED DOUBLE HYDROXIDES; HYDROTALCITE-LIKE COMPOUNDS; GAS-PHASE DEHYDRATION; MIXED-OXIDE CATALYSTS; SUSTAINABLE PRODUCTION; SELECTIVE OXIDATION; BASE CATALYSTS; HYDROGENOLYSIS; UREA; CO2;
D O I：
10.1016/s1872-2067(15)60915-9
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of Ca-Al hydrocalumite with different Ca/AI ratios (1-6) were synthesized and used in the transesterification of glycerol with dimethyl carbonate (DMC) to glycerol carbonate (GC) under mild conditions. The calcined Ca-Al hydrocalumites were active with a selectivity toward GC that reached 97% at 93% conversion of glycerol over the sample with Ca/Al = 2 at 70 degrees C, 3 h, and DMC/glycerol = 3. The glycerol conversion depended mainly on the proportion of strong basic sites in the calcined Ca-Al catalysts. The Ca12Al14O33 phase in the calcined catalysts was stable, but CaO was lost in recycle experiments and thus brought deactivation. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1759 / 1765
页数：7
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