Effects of water content on transesterification of butyl acetate in super/near-critical region

被引：0
|
作者：
Lv X.-Y. [1 ]
Fu J. [1 ]
Sun H. [1 ]
机构：
[1] Department of Chemical and Biochemical Engineering, Zhejiang University
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2010年 / 44卷 / 06期
关键词：
Butyl acetate; Near-critical region; Super-critical region; Transesterification; Volume fraction of water;
D O I：
10.3785/j.issn.1008-973X.2010.06.023
中图分类号：
学科分类号：
摘要：
In order to elucidate the functions of water on the super/near-critical organic reactions, transesterification of butyl acetate with methanol was selected as model reaction. Effects of volume fraction of water on transesterification of butyl acetate from 240 to 320°C were studied and regular results were obtained. Taking typical results at 260°C as example, the influence of water can be divided into three areas. For volume fraction of water less than 3.2%, the conversion of butyl acetate decreases sharply as water content increases while in the region of 3.2%-11.8% volume fraction of water has litter influence on the butyl acetate conversion. For volume fraction of water more than 11.8%, the conversion of butyl acetate increases as volume fraction of water increases. It is concluded that water can act as solvent, reactant and catalyst at the same reaction system and it has different functions at near-critical and supercritical region.
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页码：1173 / 1177
页数：4
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