共沸精馏分离烯丙醇-水的工艺模拟及优化  

Simulation and optimization of azeotropic distillation process for separating allyl alcohol and water

作　　者：熊帅[1,2] 华超[2] 宁国庆[1] 白芳[2] 陆平[2] 叶佳义 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249 [2]中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190

出　　处：《计算机与应用化学》2016年第7期735-740,共6页Computers and Applied Chemistry

基　　金：国家重点基础研究发展规划(973)基金资助项目(2013CB632602);国家自然科学基金青年科学基金资助项目(201306198)

摘　　要：研究了一种以苯为共沸剂的烯丙醇-水的共沸精馏工艺,运用专业软件Aspen Plus7.2版的Rad Frac精馏模块,选择NRTL热力学模型对该体系进行了工艺模拟及计算。考察了理论板数、进料位置、回流进料比等参数对分离效果的影响,并进行了参数优化。结果表明:理论板数为20块,进料位置为10块,回流进料比为3.5,塔釜烯丙醇的纯度能达到99.88%,回收率能达到99.9%,验证了工艺的可行性,并对某企业1万吨/年烯丙醇脱水工艺进行了优化设计。The azeotropic distillation process for separating the mixture of allyl alcohol and water was simulated by the RadFrac distillation module of Aspen Plus 7.2. The NRTL activity coefficient model was adopted and benzene was selected as the entrainer according to the principle of entrainer selecting. From the simulation and analysis, the theoretical plates, feeding position, and the ratio of reflux to feed on the performance of the azeotropic distillation column were studied in detail. The results showed that under the conditions of number of theoretical plates 20, feeding position 10,the ratio of reflux to feed 3.5, allyl alcohol（--〉99.88, wt%） was obtained from the bottom of the azeotropic distillation column while the recovery of it is 99.9%. At last, a 10000 tons/year allyl alcohol dehydration process is designed. The article has a important guiding significance for the design and industrial production of the allyl alcohol dehydration process.

关 键 词：烯丙醇 共沸精馏 共沸剂 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]