CAJ | 학술논문

研究了采用双塔连续酯化分离法分离有机硅共沸物的生产工艺，并采用ASPEN PLUS过程模拟软件对酯化分离法的工艺过程进行模拟计算。对有机硅共沸物酯化分离这一反应体系的汽液平衡过程，采用ASPEN PLUS的DSTWU、 RadFrac分离单元模块进行模拟，热力学方法选用NRTL模型，计算结果令人满意。对酯化法分离有机硅共沸物的工艺过程进行模拟计算，得到的流程工艺条件为：精馏Ⅰ塔理论塔板数58块，进料板数26，回流比22.8，塔顶温度41℃，塔顶压力101 kPa；反应精馏Ⅱ塔理论塔板数10块，进料板数5，回流比1.9，塔顶温度51℃，塔顶压力101 kPa，塔径为900 mm，最大负荷分率0.71，最大负荷因子0.05 m/s；填料高度6 m时，塔压降2000 kPa，选用填料表面积121 m2/m3，填料孔隙率0.73。
연구료채용쌍탑련속지화분리법분리유궤규공비물적생산공예，병채용ASPEN PLUS과정모의연건대지화분리법적공예과정진행모의계산。대유궤규공비물지화분리저일반응체계적기액평형과정，채용ASPEN PLUS적DSTWU、 RadFrac분리단원모괴진행모의，열역학방법선용NRTL모형，계산결과령인만의。대지화법분리유궤규공비물적공예과정진행모의계산，득도적류정공예조건위：정류Ⅰ탑이론탑판수58괴，진료판수26，회류비22.8，탑정온도41℃，탑정압력101 kPa；반응정류Ⅱ탑이론탑판수10괴，진료판수5，회류비1.9，탑정온도51℃，탑정압력101 kPa，탑경위900 mm，최대부하분솔0.71，최대부하인자0.05 m/s；전료고도6 m시，탑압강2000 kPa，선용전료표면적121 m2/m3，전료공극솔0.73。
The production process of separating silicone azeotrope by twin towers continuous esterifica -tion, was studied, and the process of esterification separation method was simulated and calculated with the process simulation software of ASPEN PLUS .The process of vapor-liquid equilibrium of silicone azeotrope es-terification separation system was simulated with the separation unit module of DSTWU and RadFrac of ASPEN PLUS.The thermodynamic methods of NRTL model were used and the results were satisfactory .Designed con-dition of process and calculated results of equipment were given as follows:58 theoretical plates in distillation tower I, 26 feed plates, reflux ratio of 22.8, 41℃of the temperature, 101 kPa of the pressure;10 theoretical plates in distillation tower I , 5 feed plates, reflux ratio of 1.9, 51℃of the temperature, 101 kPa of the pres-sure;the tower diameter of 900 mm, the maximum load of 0.71, and the maximum load factor of 0.05 m/s;packing height of 6 m, column pressure of 2 000 kPa, the filler surface area of 121 m2/m3 and packing porosi-ty of 0.73 .