| 催化剂对酯化反应渗透汽化膜稳定性的影响 |
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| 引用本文： | 李雪辉,王乐夫.催化剂对酯化反应渗透汽化膜稳定性的影响[J].高校化学工程学报,2000,14(4):387-389. |
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| 作者姓名： | 李雪辉 王乐夫 |
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| 作者单位： | 华南理工大学化工学院,广东,广州,510640 |
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| 基金项目： | 广东省博士启动基金，华南理工大学校科研和教改项目，950117;994272，，， |
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| 摘 要： | 比较了酯化反应耦合渗透汽化膜反应器中不同的催化剂体系及其含量对ＰＰＶＡ／ＰＡＮ复合膜稳定性的影响。试验结果表明，固体超强酸催化剂体系对复合膜的稳定性没有影响。活性层酯化度为３．３％及６．２％的复合膜具有良好的稳定性。能够适合于酯化反应耦合渗透汽化过程研究及应用。
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| 关 键 词： | 酯化反应 渗透汽化 催化剂 复合膜 稳定性 |
| 修稿时间： | 1999-09
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Effects of Catalyst on the Stability of Membranes in Esterification - Pervaporation Process |
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| LI Xue-hui,WANG Le-fu.Effects of Catalyst on the Stability of Membranes in Esterification - Pervaporation Process[J].Journal of Chemical Engineering of Chinese Universities,2000,14(4):387-389. |
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| Authors: | LI Xue-hui WANG Le-fu |
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| Abstract: | In esterification coupled pervaporation membrane reactor, effects of catalytic systems and their content on the membrane stability were all investigated through comparing the pervaporation properties of PPVA/PAN composite membrane on the separation of ethanol/water mixture. Experimental results showed that the reaction compounds and the liquid acids (concentrated sulfuric acid and p-toluene sulfonic acid) had great effect on membrane stability, but the solid supper acid had no effect on the membrane stability. Composite membranes with the esterification degree of activity layer being 3.3% and 6.2% had well separation properties and stability, they were suit to the studying and application of coupled membrane reactor. |
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| Keywords: | esterification pervaporation catalytic system composite membrane stability |
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