甲基氯硅烷轻组分分离流程的模拟与优化  

Simulation and Optimization of the Separation Process of Light Components in Methylchlorosilanes

作　　者：王英明 付强 伊港 周玲 周磊 杨岭 WANG Yingming;FU Qiang;YI Cang;ZHOU Ling;ZHOU Lei;YANG Ling(Shandong University of Technology,Zibo 256400,China;Shandong Dongyue Silicone Material Co.,Ltd.,Zibo 256401,China)

机构地区：[1]山东理工大学,山东淄博255000 [2]山东东岳有机硅材料股份有限公司,山东淄博256400

出　　处：《有机硅材料》2024年第3期43-49,54,共8页Silicone Material

基　　金：泰山产业领军人才工程(NO.tscx202306138)。

摘　　要：采用Aspen Plus软件对配套30万吨/年甲基氯硅烷单体生产装置的轻组分精馏过程进行建模与优化,首先通过甲基氯硅烷二元体系气液平衡实验值与不同热力学模型预测值之间的均方根差和绝对平均偏差优选出WILSON模型,并通过对比分析不同塔序优化方案的模拟结果,优选出利用原共沸塔优先分离三甲基氯硅烷,再将原含氢塔与三甲塔串联后分离甲基二氯硅烷的方案。优选方案的模拟结果显示,其甲基二氯硅烷流股纯度达99.60%、收率达99.59%,三甲基氯硅烷流股纯度达99.80%、收率达98.40%,残余的共沸物流量为68.34kg/h,总能耗2361kW。此外,水力学的分析结果验证了可行性。The simulation and optimization was conducted with Aspen Plus on the distillation process for light components in 300,000 tons peryear methylchlorosilane unit,Firstly,WILSON model was selected based on root-mean-square errors(SEs)and absolute average deviation by the experimental data of gas-liquid equilibrium for methylchlorosilanes and the predictions of dfferent thermodynamic models.By comparative analysis of simulation results in dfferent tower sequence,a preferred scheme was that using the original azeotropic tower to prioritize the separation of trimethylchlorosilane,and then the original hydrogen tower and trimethyl tower were connected in series to separate methyl dichlorosilane.The results show that the purity of the methyldichlorosilane stream reaches 99.60%with a yield of 99.59%,while the purity of the trimethylchlorosilane stream reaches 99.80%with a yield of 98.40%,with the residual azeotropic flow rate of 68.34 kg/h,and the total energy consumption of 2361 kW.Additionally,the result verifiy its feasibility by hydraulic analysis.

关 键 词：甲基氯硅烷 塔序优化 AspenPlus软件 WILSON模型 

分 类 号：TQ264.11[化学工程—有机化工]