分隔壁精馏塔分离椪柑皮精油中D-柠檬烯的模拟研究  

Simulation of Dividing Wall Column for Separating Limonene from Citrus Peels Oil

作　　者：胡女丹[1] 周剑丽[1] 覃引[1] 

机构地区：[1]贵州理工学院制药工程学院,贵阳550003

出　　处：《湖北农业科学》2015年第10期2451-2454,共4页Hubei Agricultural Sciences

基　　金：贵州理工学院科学基金项目(XJZK20130804)

摘　　要：应用Aspen Plus软件分析柠檬烯与椪柑(Citrus reticulata Blanco cv.Ponkan)皮精油其他主要成分的二元系统在0.1 k Pa下相平衡关系,并建立常规双塔精馏和分隔壁塔精馏分离(DWC)模型对椪柑皮精油提纯D-柠檬烯进行工艺模拟。通过三塔模型对分隔壁精馏塔进行计算,计算结果作为初值,利用Aspen Plus软件中Multifrac-Petlyuk模块对DWC进行严格模拟计算,并利用灵敏度分析回流比、进料位置、测线采出位置、互联位置以及互联物流气液相流率对分离效果及再沸器热负荷的影响,在优化条件下,得到纯度为97.20%的D-柠檬烯,回收率为93.75%。分隔壁塔精馏比双塔精馏的再沸器热负荷节省39.65%。The vapor-liquid equilibrium of citrus peels oil was calculated by Aspen Plus software, the binary vapor-liquid e- quilibrium curves of limonene and major components were obtained respectively under the pressures of 0.1kPa. The direct se- quence of conventional distillation and dividing wall column Separation model were build to simulation studies on the distilla- tion separation of limonene from citrus peels oil. The shortcut calculation of dividing wall column was carried out using three- tower process and the calculation results were used as the initial value of rigorous simulation. The rigorous simulation of di- viding wall column was executed with Multifrac- Petlyuk model of Aspen Plus software, the effect of feed stage, side product stage, intereonneetion stage and distribution ratio of vapor and liquid on the separation efficiency and reboil duty were investi- gated especially through sensitive analysis. 97.20 % of limonene （mass fractions） were obtained. The recovery was 93.75% for limonene. Compared with the direct sequence of conventional distillation, the reboiler duty was 39.44% reduced by in the same separation task.

关 键 词：分隔壁塔 精馏 椪柑(Citrus RETICULATA Blanco cv.Ponkan)皮精油 模拟 节能 

分 类 号：TQ028.4[化学工程]