化工学报2019，Vol.70Issue(2)：440-449,10.DOI:10.11949/j.issn.0438⁃1157.20181356
外部环流反应精馏塔的分散控制方案设计
Decentralized control system designs for reactive distillation columns with external recycle
摘要
Abstract
For a quaternary reaction separation system having the most unfavorable relative volatility order (i. e., the reactant is the lightest and heaviest component, the product is the intermediate component), an external is introduced between the top and bottom of the reactive distillation column. The seperation for an hypothetic ideal reversible exothermic reaction was taken as an illustrative example to study the problem of the decentralized control system designs. The results show that the reactive distillation columns with a top-bottom external recycle has better closed-loop control performance and stronger controll ability in the face of large disturbances as compared to the conventianal reactive distillation columns due to the fact that the introducing of external recycle enhance the system reaction rate. In addition, the processes have more operating valuable (i.e., the external recycle flow rate) compared to conventianal reactive distillation columns; therefore, one can utilize the extra operating valuable to control the product purity. The unique control system can further enhance process closed-loop control performance.关键词
反应精馏/外部环流/过程控制/动态仿真/过程系统Key words
reactive distillation/ external recycle/ process control/ dynamic simulation/ process systems分类
化学化工引用本文复制引用
陈海胜,王腾飞,黄克谨,苑杨,钱行,张亮..外部环流反应精馏塔的分散控制方案设计[J].化工学报,2019,70(2):440-449,10.基金项目
国家自然科学基金项目(21576014,21676011,21878011,21808007,61573052) （21576014,21676011,21878011,21808007,61573052）
