丙酮连氮催化水解反应精馏工艺的研究  

Process of hydrazine hydrate production by acetone azine hydrolysis via catalytic distillation

作　　者：李柏春[1] 吴晓旺[1] 许沉娜[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《化学工程》2013年第8期16-20,共5页Chemical Engineering(China)

摘　　要：对丙酮连氮催化水解反应精馏制水合肼的工艺过程进行了模拟与实验。采用NRTL方程与RadFrac模型,使用实验回归得到的动力学方程与汽液平衡参数,对丙酮连氮催化水解精馏制水合肼的工艺进行模拟计算。考察了回流比、丙酮连氮与水的摩尔比、进料位置等工艺条件对丙酮连氮水解反应的影响,并通过实验验证了模型的准确性和可靠性。在模拟和实验的基础上,确定了最优工艺条件:精馏段理论板数为5,反应精馏段理论板数为14,回流比为2,丙酮连氮与水的摩尔比为1∶7,原料进料位置为第9块板。在此条件下,丙酮连氮的水解率可达99%以上,塔釜肼质量分数为34%,并且得到了全塔的温度和质量分数分布曲线,为工业生产提供了依据。The process of hydrazine hydrate produced by acetone azine hydrolysis via catalytic distillation was simulated and experimented. By using NTRL equation and RadFrac module, as well as the data obtained from dynamics and phase equilibrium, the process of producing hydrazine hydrate by acetone azine hydrolysis via catalytic distillation was simulated. The effects of process parameter, such as reflux ratio, mole ratio of acetone azine to water and feeding location on the acetone azine hydrolysis reaction were investigated. The optimized process parameters obtained were as follows ： theoretical tray number 5 for rectifying, theoretical tray number 14 for reaction, reflux ratio 2, the mole fraction of acetone azine to water 1 ： 7, feed tray 9th tray. Under such conditions, the hydrolysis rate of acetone azine was over 99%, the mass fraction of hydrazine hydrate at bottom was 34% and the temperature and mass fraction distributions of whole column were got. It provides a reference for industry production.

关 键 词：催化精馏 丙酮连氮 水解 水合肼 模拟 

分 类 号：TQ028.13[化学工程]