Control of extractive distillation process for separating heterogenerous ternary azeotropic mixture via adjusting the solvent content
作者: Yong WangXia ZhangXiaobin LiuWenting BaiZhaoyou ZhuYinglong WangJun Gao
作者单位: 1College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
2College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
刊名: Separation and Purification Technology, 2018, Vol.191 , pp.8-26
来源数据库: Elsevier Journal
DOI: 10.1016/j.seppur.2017.09.008
关键词: Ternary azeotropeExtractive distillationControllabilityProcess evaluation
英文摘要: Abstract(#br)The existence of heterogeneous azeotrope of toluene-water and homogenous azeotrope of toluene-methanol makes it difficult to separate the toluene-methanol-water mixture. Two methods of three column extractive distillation and two column extractive distillation using decanter were explored to separate the ternary azeotrope. Diethylene glycol and N-methyl-2-pyrrolidone were used as heavy solvent in the two processes, respectively. The UNIQUAC physical model was used in both simulations. Based on the minimum total annual cost, variables of the two processes were optimized and the results indicated the two column extractive distillation using decanter can save 51.4% of total annual cost than three column extractive distillation. The dynamics of two column extractive distillation...
全文获取路径: Elsevier  (合作)
影响因子:2.894 (2012)

  • azeotropic 共沸的
  • mixture 混合物
  • extractive 可抽出的
  • ternary 三元的
  • adjusting 
  • solvent 溶媒
  • distillation 蒸馏
  • separating 分隔
  • content 品位
  • process 过程