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Superfractionator Control

  • William L. Luyben

Abstract

Distillation columns that perform difficult separations are called superfractionators. By difficult separations we mean that the relative volatility between the chemical components is quite low: less than 1.2 and approaching 1.05. Such low relative volatilities mean that there is very little difference between the composition of the liquid phase and the composition of the vapor phase in equilibrium with it. Hence many equilibrium stages are required to accomplish the separation.

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References

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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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