响应面法应用于隔壁塔优化的研究  

Optimization of the dividing wall columns by response surface methodology

作　　者：曹梦习 赵培[1] 张辉[1] 张秋香[1] 

机构地区：[1]华东理工大学化工学院,上海200237

出　　处：《现代化工》2016年第11期197-200,共4页Modern Chemical Industry

摘　　要：响应面法是一种考虑多因素的优化方法,结合Design Expert中的Box-Behnken设计方法来分析隔壁塔,并预测优化因素。运用Aspen Plus模拟,简捷计算和严格计算后,通过灵敏度功能逐个分析操作参数,在达到相同分离效果时,结果与传统二塔对比。最后,以进料位置、侧线采出位置、液相流量和气相流量为4因素,再沸器热负荷和各个产品的摩尔分数为响应值,进行试验设计分析获得全局最优值。结果表明,每个因素对响应值的影响均显著,总热负荷分别降低23.6%、18.4%,塔板数减少,成本降低。相对于隔壁塔单因素的优化,产品纯度提高,能耗也进一步降低。Response Surface Methodology is a kind of optimization method considering multiple factors, which is combined with the Box-Behnken design method of Expert Design to analyze the dividing wall columns and predict the optimization factors. The operating parameters are analyzed one by one through the sensitivity function by using Aspen Plus. Under the same separation effect, the obtained results are compared with the traditional two-column distillation processes. By defining feed position, side-draw position,liquid phase flow and vapor flow as the factors, reboiler duty and mole fraction of individual products as response values, the global optimized values can be achieved. The results show that each factor has significant effect on the response value. The total duty is reduced by 23.6% and 18.4%, respectively. The number of the plate and cost are also reduced. Compared with the optimal results of the dividing wall columns via single-factor experiment, the purity of the product is improved and the energy consumption is reduced.

关 键 词：响应面法 隔壁塔 ASPEN PLUS 优化 

分 类 号：TQ223.1[化学工程—有机化工]