反应精馏生产丁酸酐的过程模拟

丁酸酐是一种重要的有机原料,其现有的生产工艺为间歇操作,收率较低。本研究将反应精馏技术应用到生产丁酸酐的工艺中,建立了连续生产工艺的数学模型,在实验数据的基础上,用数据分析软件MATLAB对实验数据分析处理,得到相应的模型参数。采用ASPEN PLUS进行工艺方案的模拟计算,结果表明,利用反应精馏连续生产丁酸酐的工艺是可行的,以分离促反应,产品收率到达了97%以上,同时选择工艺操作参数,最佳条件为:酸酐比2:1、反应压力0.2 atm、塔板数为12块,确定反应区主要为进料板附近。

The process simulation of reactive distillation produce butyric anhydride

Butyric anhydride is an important organic raw material,but there exist law yield disadvantage in its current product tech- nique because of batch operation.In order to solve the problem mentioned above,reaction ditillation technology is applied to producing butyric anhydride in this paper,the model of continuous operation is built then,experiment operation is carried out based on the simu- lation results,and the experiment data are analyzed by MATLAB,and relate parameters in it are acquired through experiment.After that,simulation of reactive distillation is clone by ASPEN PLUS,the final computation result shows that reactive distillation can en- hance reaction and the concentration of butyric anhydride is reduced effectively.When the ratio of butyric acid and acetic anhydride is 2:1,reactive pressure is 0.2 atm,plate number is 12,the yield of the product can reach 97%,at the same time,the operating pa- rameters are chosen,and the reaction zone is near to feeding plate.