Esterification of benzoic acid in microwave tubular flow reactor
Esterification of benzoic acid in microwave tubular flow reactor
复制标题
微波管式流动反应器中苯甲酸的酯化反应
DOI：
10.1016/s1385-8947(99)00171-0
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发表时间：
2000
影响因子：
15.1
通讯作者：
T. Koloini
中科院分区：
文献类型：
--
作者：
G. Pipus;I. Plazl;T. Koloini
在微波加热的连续管式流动反应器中研究了苯甲酸与乙醇的酸催化酯化反应。微波反应器在中压和高温条件下运行。用硫酸和离子交换树脂催化酯化。使用常规加热在搅拌的玻璃容器中测定酯化的动力学参数。提出了一种数学模型来描述温度分布并预测管流微波反应器中的反应转化率。根据预测的温度曲线计算出的苯甲酸转化率与实验数据一致。微波反应器的操作条件使我们能够以相对较短的停留时间实现高转化率。
Acid-catalyzed esterification of benzoic acid with ethanol was investigated in a continuous tubular flow reactor heated by microwaves. The microwave reactor operated at medium pressure and high temperature conditions. Esterification was catalyzed with sulfuric acid and with ion exchange resins. Kinetic parameters of esterification were determined in a stirred glass vessel using conventional heating. A mathematical model was proposed to describe temperature profiles and to predict the conversion of the reaction in the tubular flow microwave reactor. The calculated conversions of benzoic acid based on predicted temperature profiles agree with experimental data. The operating conditions in the microwave reactor allowed us to achieve high conversions at relatively low residence times.