SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 33 ›› Issue (5): 203-210.DOI: 10.1016/j.cjche.2020.08.041

• Process Systems Engineering and Process Safety • 上一篇    下一篇

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

Min Li, Yue Cui, Xiaojing Shi, Zhishan Zhang, Xiaoxiao Zhao, Xiuyu Zhu, Jun Gao   

  1. College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
  • 收稿日期:2020-06-16 修回日期:2020-07-16 出版日期:2021-05-28 发布日期:2021-08-19
  • 通讯作者: Zhishan Zhang
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21878178).

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

Min Li, Yue Cui, Xiaojing Shi, Zhishan Zhang, Xiaoxiao Zhao, Xiuyu Zhu, Jun Gao   

  1. College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
  • Received:2020-06-16 Revised:2020-07-16 Online:2021-05-28 Published:2021-08-19
  • Contact: Zhishan Zhang
  • Supported by:
    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 CO2 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

Abstract: 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 CO2 emissions by 32.84% compared to the conventional triple-column extractive distillation process.

Key words: Extractive distillation, Dividing wall column, Simulated annealing, Optimization, Benzene/isopropanol/water