Design of a Highly Efficient Indium-Exchanged Heteropolytungstic Acid for Glycerol Esterification with Acetic Acid

被引：6
|
作者：
Sun, Zhong [1 ]
Duan, Xixin [1 ]
Tao, Meilin [1 ]
Wang, Xiaohong [1 ]
Zhou, Dandan [2 ]
机构：
[1] NE Normal Univ, Minist Educ, Key Lab Polyoxometalate Sci, Changchun 130024, Peoples R China
[2] NE Normal Univ, Sch Urban & Environm Sci, Changchun 130024, Peoples R China
来源：
CATALYSIS SURVEYS FROM ASIA | 2016年 / 20卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Heteropolyacids; Nanotube; Bronsted acidity; Lewis acidity; Esterification; SOLID ACID; FATTY-ACIDS; CATALYSTS; ACETYLATION; PYRIDINE; TRANSESTERIFICATION; TRANSFORMATIONS; BIOADDITIVES; RESOURCES;
D O I：
10.1007/s10563-016-9209-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of highly active, selective, and stable solid indium-exchanged tungstophosphoric acid catalysts had been prepared, characterized and evaluated for bio-derived glycerol esterification with acetic acid to produce valuable biofuel additives. It was found that the Inx/3H3-xPW with nanotube structure owns Lewis acidity and Bronsted acidity in one, which favors for the efficient esterification of glycerol into monoglycerides with higher selectivity. Among all, In0.8H0.6PW presented exceptionally high activity with 88 % conversion and 96 % selectivity to MAG within 30 min of reaction time at 120 A degrees C using 4:1 molar ratio. The better performance came from its remarkable stability, due to the unique Keggin structure, high acidity as well as nanotube structure. In addition, this In0.8H0.6PW catalyst did not suffer from deactivation of water in the six consecutive reaction tests.
引用
收藏
页码：82 / 90
页数：9
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