As shown in practice, distillation control design is successful when chemical engineering know-how of column behavior is included in the control concept as a priori knowledge. Incorporation of an observer model represents one such possibility. This is a mathematical process model that operates in the process computer in parallel to the actual process. Using the model, significant process variables, which are difficult or impossible to measure on-line, are estimated from easily measured variables.


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Copyright information

© Van Nostrand Reinhold 1992

Authors and Affiliations

  • F. F. Rhiel
    • 1
  1. 1.Bayer AGGermany

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