化工进展

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内部热耦合反应精馏塔塔构型的研究

李 军1,2,孙兰义1,周宪田1,王汝军1,胡仰栋2   

  1. 1中国石油大学化学工程学院,山东 青岛 266555;2中国海洋大学化学化工学院,山东 青岛 266100
  • 出版日期:2012-05-05 发布日期:2012-05-05

Study on the configuration of internal thermally coupled reactive distillation column

LI Jun1,2,SUN Lanyi1,ZHOU Xiantian1,WANG Rujun1,HU Yangdong1   

  1. 1School of Chemical Engineering,China University of Petroleum,Qingdao 266555,Shandong,China; 2School of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,Shandong,China
  • Online:2012-05-05 Published:2012-05-05

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

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

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