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Dynamic matrix control of a high‐purity internal thermally coupled distillation column
Author(s) -
Cong Lin,
Liu Xinggao,
Wang Chengyu
Publication year - 2014
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21867
Subject(s) - control theory (sociology) , multivariable calculus , fractionating column , distillation , sensitivity (control systems) , servo , process (computing) , matrix (chemical analysis) , pid controller , nonlinear system , process engineering , toluene , model predictive control , benzene , temperature control , computer science , control engineering , chemistry , control (management) , engineering , chromatography , physics , artificial intelligence , organic chemistry , quantum mechanics , electronic engineering , operating system
The internal thermally coupled distillation column (ITCDIC) is a frontier in the energy‐saving distillation research. The process inside a high‐purity ITCDIC is of great nonlinear dynamics, high sensitivity to disturbances and inverse response, which prevent the process from being commercialised. To obtain a satisfactory control performance, a dynamic matrix control (DMC) is presented. The benzene/toluene system is studied as a simulation example. The results are compared with a traditional PID and an adaptive multivariable generalised predictive control (AM‐GPC) in detail. The performances in both servo and regulatory control confirm the accuracy and validity of the DMC for the high‐purity ITCDIC process.