异丙醇与丙酸酐酯化反应的安全控制条件

Safety-control conditions in esterification of isopropyl alcohol and propionic anhydride

针对异丙醇与丙酸酐酯化合成丙酸异丙酯工艺的反应失控危险性,利用泄放尺寸实验仪(VSP2)研究了其反应的放热特性,选择自催化模式模拟得到了反应动力学参数,并与实验数据进行了对比验证;利用得到动力学模型,模拟了该工艺在半间歇模式、反应温度为70℃时,中试规模(>100L)条件下的反应特点,分析了反应失控的危险性,并针对加料程序进行了优化设计,得到最佳控制方法。

Vent size Package 2 （VSP2） was used to analyze the thermal behavior in synthesis reaction of isopropyl propionate, The reaction kinetics were simulated with autocatalytic model, and validated by experimentations. The reaction characteristics were simulated in semi-batch mode, with the reaction temperature of 70℃, pilot-scale （100L）. The hazards of runaway reaction were discussed, and the feed program was optimized.