N-甲基吡咯烷酮生产分离系统的模拟计算与优化  

Simulation and optimization of separation system for production of N-methyl pyrrolidone

作　　者：李钰[1] 许朝阳[2] 王祖元[2] 崔鹏[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009 [2]安徽省化工设计院,安徽合肥230009

出　　处：《应用化工》2012年第2期369-372,共4页Applied Chemical Industry

摘　　要：应用化工流程模拟软件Aspen Plus对N-甲基吡咯烷酮生产工艺中的分离系统进行模拟,将脱轻塔和脱重塔的操作方式由间歇操作改为连续操作,并对连续操作的脱轻塔和脱重塔的塔板数、进料位置、回流比等操作参数进行了优化。结果表明,优化的脱轻塔和脱重塔的适宜塔板数、进料板位置、最佳回流比分别为10,6,0.10和18,11,0.375。在此条件下,产品纯度达到99.40%,符合分离要求。ASPEN PLUS was used to simulate the separation system for the production of N-methyl pyrrolidone.The operation mode of de-light rectifying column and de-heavy rectifying column were changed from batch operation into continuous operation.The stage number,feed stage and reflux ratio of de-light rectifying column and de-heavy rectifying column were also optimized,the results of which were 10,6,0.10 and 18,11,0.375,respectively.The product purity could reach 99.40% on the condition of optimized working conditions,and met with separation requirements.

关 键 词：N-甲基吡咯烷酮 ASPENPLUS 模拟 脱轻塔 脱重塔 

分 类 号：TQ420.6[化学工程]