甲苯二异氰酸酯装置光气化反应精馏过程模拟优化  

TDI phosgenation reaction distillation process simulation optimization

作　　者：魏素贞 李春欣 李静 毕荣山[1] 

机构地区：[1]青岛科技大学计算机与化工研究所,山东青岛266042 [2]甘肃银光化学工业集团有限公司TDI厂,甘肃白银730900 [3]甘肃银光化学工业集团有限公司含能材料分公司,甘肃白银730900

出　　处：《计算机与应用化学》2014年第12期1467-1470,共4页Computers and Applied Chemistry

摘　　要：分析了光气化法生产甲苯二异氢酸酯(TDI)的工艺流程特点,建立了胺盐反应动力学模型,结合反应精馏塔的工艺参数及操作条件,胺盐的反应精馏塔进行模拟。考察了塔釜温度、侧线采出温度、塔釜停留时间和塔板停留时间的变化对胺盐转化率及再沸器热负荷的影响,得到了优化的参数,即塔釜温度150℃,侧线采出温度为92℃,塔釜停留时间20 min。优化结果使得胺盐转化率达到99.5%,为工业实际操作提供参考。According to analyze the process parameters of Toluene diisocyanate（TDI） by the method of phosgenation production,the reaction disti）lation,dynamic model is established.The article simulated reaction rectification tower of amine salt combined with the process parameters and operating conditions of reaction rectification tower.Extraction temperature of different lateral line,reactor temperature of different tower,stay time of tower plate,and the influence of reactor residence time on amine salt conversion rate and of the reboiler heat load are simulated and optimized analysis.The results are obtained as follows：the tower kettle temperature is 150℃,the lateral line extraction temperature is92 ℃the column reactor residence time is 20 min.Optimization results amine salt conversion rate reached 99.5%,actual operation to provide the reference for industry.

关 键 词：TDI 动力学 优化分析 

分 类 号：TE01[石油与天然气工程]