Diagonal Controller Tuning

  • William L. Luyben


Distillation columns are inherently multi-variable. As discussed in Chapter 1, even the most simple single-feed, two-product column is a 5 × 5 system: five manipulated variables and five controlled variables. The column can normally be reduced to a 2 × 2 system because the control loops for the two liquid levels and the pressure do not interact significantly in many columns. Thus we have in the simplest of distillation columns a system with two compositions or two temperatures that can be controlled and two manipulated variables to achieve this control.


Distillation Column Manipulate Variable Reflux Ratio Load Disturbance SISO System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Van Nostrand Reinhold 1992

Authors and Affiliations

  • William L. Luyben
    • 1
  1. 1.Lehigh UniversityUSA

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