摘要
中在气偶联合成法生产乙二醇(EG)的工艺过程中,亚硝酸甲酯(MN)反应塔的设计及运行,在整个流程中起到至关重要的作用,本文以实际中试装置数据为基础;采用NRTL热力学方程与KINETIC动力学反应控制模型,通过Aspen软件模拟MN反应塔的工艺,根据实际装置的反应转化率与反应时间,验证并修正了KINETIC动力学参数;结果表明:如果反应时间在50s内完成、反应物转化率达99.95%、产品回收率达99.96%,与实际操作参数吻合。同时利用Aspen软件的灵敏度,分析模块优化塔的操作参数,(包括理论板数、进料温度、进料位置及回流量等)。模拟结果对MN反应塔的工艺设计与工业化有一定指导意义。
The design and operation of the Methyl Nitrite reactive distillation took on a important function for the process in synthesis of Ethylene Glycol through synthetic gas.In this paper,based on the present process date of a pilot plant,the NTTL thermodynamical equilibrium equation and Kinetic model of Aspen Plus were applied to simulate the MN reactive distillation process.According to the rate of conversion and reaction time of actual pilot plant,the KINETIC parameters obtained examination and modifying.The simulation result indicate that the reaction time is 50 seconds,rate of conversion is 99.95%,percent recovery of product is 99.98%,which were close to the actual operation parameters.The sensitivity model of Aspen Plus was used to optimize the operation parameters,which including the number of theoretical plate,feeding stage,feeding temperature and reflux rate.The simulation results had some reference worthiness to the technological design and industrialization of MN reactive distillation process.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2010年第11期1485-1488,共4页
Computers and Applied Chemistry
