Abstract: The model for applying an internal thermally coupled reactive distillation column（ITCRDC）to hydrolysis of methyl acetate was studied by using the simulation software，Aspen Plus. On the premise of ensuring the purity of products and minimum approach temperature，the effects of the various configurations of ITCRDC on the energy saving were explored. The results suggested that configuration had great influence on the performance of ITCRDC for the hydrolysis reaction of methyl acetate and the optimal one was obtained. And the characteristic of the optimal configuration is that the reaction section is in the rectifying tower and the stripping tower is thermally coupled with the rectifying tower.

Key words: internal thermally coupled, reactive distillation, methyl acetate, energy saving

摘要： 以乙酸甲酯水解为例，利用模拟软件Aspen Plus建立了内部热耦合反应精馏塔模型，研究了内部热耦合反应精馏塔各种可能塔构型的节能效果，并且在相同的产品要求和最小传热温差下对内部热耦合反应精馏塔各构型的能耗进行了对比。结果表明，塔构型对乙酸甲酯水解的内部热耦合反应精馏流程的操作性能有重要的影响，并且存在最佳构型。其最佳构型的特征为，反应段全部在内部热耦合反应精馏塔的精馏塔内且精馏塔与提馏塔中理论板均参与传热的塔构型。

关键词: 内部热耦合, 反应精馏, 乙酸甲酯, 节能