醋酸提浓工艺的模拟与优化  

Simulation and optimization of acetic acid concentration process

作　　者：秦辉[1] 宫丽娜 李建隆[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042 [2]青岛市排水管理处,山东青岛266042

出　　处：《计算机与应用化学》2014年第11期1373-1376,共4页Computers and Applied Chemistry

基　　金：山东省自然科学基金(ZR2011BQ006)

摘　　要：醋酸提浓是一个重要的工业过程,醋酸、水的分离难度较大、能耗较高一直是研究热点。本文建立了数学模型,选择NRTL-HOC物性方法,利用Aspen Plus软件RadFrac模块对提浓过程进行模拟,模拟数据与实际生产相符。模拟结果表明提浓塔能耗高,能源利用不理想,因此,利用Aspen Plus的Sensitivity模块对参数进行灵敏度分析,依照分析结果对提浓工艺进行了优化设计。优化后的工艺总塔板数不变;进料位置由第26块板变为第11块板;增加了2个换热器;热公用工程消耗比原工艺减少16.99%;冷公用工程消耗比原工艺减少18.01%。Acetic acid concentration is the important process of the chemical industry. This paper established the mathematical model, selected the physical method of NRTL-HOC, and used the rectification module of RadFrac to simulation the process. Simulation results are in conformity with the actual situation. But the results show that azeotropetower＇ s energy consumption is too high. Some of energy is wasted. Therefore, this paper using sensitivity analysis module to optimized the process. The optimized process has the same total stage number with the original one, but the feed stage goes from 26 to 11. The optimized process add two heat exchangers. Hot utility consumption is 16.99 % less than the original process, cooling utility consumption is 18.01% less than the original process. This article provided a theoretical basis for process development.

关 键 词：醋酸提浓 流程模拟 优化 节能 

分 类 号：TQ211[化学工程—有机化工] TQ52