反应精馏隔壁塔应用于酯转换过程的研究  

Study on the Application of Reactive Dividing Wall Column to the Transesterification Process

作　　者：孙兰义[1] 王汝军[1] 张月明[1] 周宪田[1] 李军[1] 李青松[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,山东青岛266555

出　　处：《化学反应工程与工艺》2010年第5期418-423,共6页Chemical Reaction Engineering and Technology

基　　金：山东省泰山学者建设工程基金资助项目;中国石油大学(华东)自主创新科研计划项目

摘　　要：提出了一种应用反应精馏隔壁塔把乙酸甲酯废液处理成乙酸正丁酯的新工艺流程,即采用反应精馏隔壁塔替代常规流程中的反应精馏塔及甲醇回收塔。利用Aspen Plus模拟软件对反应精馏隔壁塔及常规流程进行了模拟,考察了进料位置、反应段位置及高度、耦合位置等结构参数对反应精馏隔壁塔的影响,并在保证产品纯度的前提下对反应精馏隔壁塔进行了最优化分析。分析结果显示反应精馏隔壁塔可以节能17.34%,并能有效降低设备投资费用和操作费用。A novel single-column reactive distillation process was proposed for converting the methyl acetate waste liquid to N-butyl acetate, in which the reactive dividing wall column was used instead of the conventional reactive distillation column and methanol recovery column. Both the new and conventional processes were simulated with Aspen Plus. The influence of important parameters, such as the feed stage, the reactive zone height and location, interlinking tray location, on the performance of the novel process was studied and the optimal result was obtained on the premise of ensuring the purity of product. The results showed that energy consumption of the new process could be reduced by 17.34%, and the cost of equipment and operation would also decrease effectively.

关 键 词：反应精馏 分隔壁塔 乙酸甲酯 乙酸正丁酯 最优化 节能 

分 类 号：TQ028.31[化学工程]