Simulated annealing-based optimal design of energy efficient ternary extractive dividing wall distillation process for separating benzene-isopropanol-water mixtures  

作　　者：Min Li Yue Cui Xiaojing Shi Zhishan Zhang Xiaoxiao Zhao Xiuyu Zhu Jun Gao 

机构地区：[1]College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China

出　　处：《Chinese Journal of Chemical Engineering》2021年第5期203-210,共8页中国化学工程学报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (21878178).

摘　　要：This article investigates the performances of different extractive distillation processes intensified with dividing-wall column for separating benzene-isopropanol-water ternary mixtures.All the processes with ethylene glycol as solvent are optimized with the minimal total annual cost(TAC)as target.In order to get the global optimal solution intelligently,an improved simulated annealing algorithm is adopted,which is programmed in MATLAB and linked to Aspen Plus.The results show that the extractive dividing wall column-solvent(EDWC-S)process consisting of an extractive dividing wall column and a solvent recovery column is the best scheme.It can reduce the TAC by 28.65%and CO_(2) emissions by 32.84% compared to the conventional triple-column extractive distillation process.

关 键 词：Extractive DISTILLATION Dividing WALL column Simulated annealing Optimization Benzene/isopropanol/water 

分 类 号：TQ028.3[化学工程]