分离丙酮-乙醇-水物系的隔壁塔设计与优化

发布时间：2018-02-16 02:28

本文关键词： 隔壁塔 Aspen Plus软件丙酮-乙醇-水物系响应面法　出处：《石油化工》2017年02期 　论文类型：期刊论文

【摘要】：利用Aspen Plus模拟软件,建立了分离丙酮-乙醇-水物系的隔壁塔工艺流程。在保证丙酮产品纯度不低于99.2%的前提下,使用响应面法分析了隔壁塔的结构参数对能耗的影响,拟合出塔结构参数与再沸器热负荷的二次方程,对隔壁塔的结构参数进行了优化。优化结果为:预分离段、公共精馏段、公共提馏段和侧线采出段的理论塔板数分别为22,20,19,18;预分离段的进料位置为第16塔板,公共提馏段的再沸器热负荷为405.63 k W。验证结果显示,优化结果与模拟结果的相对误差为0.65%,说明流程模拟与响应面法相结合用于隔壁塔结构参数的优化可行。与传统工艺相比,隔壁塔分离工艺的设备费用降低26.86%、年度总费用降低41.10%。
[Abstract]:Using Aspen Plus simulation software, the process of separating acetone-ethanol-water system from adjoining tower was established. Under the premise of ensuring the purity of acetone product not less than 99.2%, the effect of structure parameters of adjacent tower on energy consumption was analyzed by using response surface method. The quadratic equation of the structure parameters of the column and the heat load of the reboiler is fitted, and the structural parameters of the adjacent column are optimized. The optimization results are as follows: Pre-separation stage, common distillation section, The theoretical tray number of the common stripping section and the side line extraction section are 2220 / 19 / 18, respectively, and the feed position of the pre-separation section is the 16th tray and the heat load of the reboiler of the public stripping section is 405.63 K. the verification results show that, The relative error between the optimization results and the simulation results is 0.65, which shows that the combination of flow simulation and response surface method is feasible for the optimization of the structural parameters of the adjacent tower. Compared with the traditional process, the equipment cost of the separation process for the adjacent tower is reduced by 26.86 and the annual total cost is reduced by 41.10.
【作者单位】：河北工业大学化工学院;
【基金】：河北省科技计划项目(15964505D,16214505D)
【分类号】：TQ053.5

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