Computer Control of a Pilot Plant Stripping Column

  • Peter Scholander
Conference paper
Part of the Lecture Notes in Economics and Mathematical Systems book series (LNE, volume 93)


Control of 1) the instantaneous value and 2) the mean value of the bottoms composition of a binary pilot stripping column subjected to step disturbances has been studied. The five tray column was modelled by a sixth order state-space model. This model was for control purposes augmented with one integral and one double integral state. The model was used to compute optimal feedback and feedforward control matrices. Experiments showed large fluctuations in the control. This was due to feedback of measurement errors. To get good control the feedback control matrices were multiplied by 0.3. Results from simulations and experiments are presented. It is shown in this paper that by including double integral action in a controller, it is possible to control the mean value of the bottoms composition, when the column is subjected to step disturbances.


Distillation Column Feedforward Control Integral Error Modern Control Theory Sieve Tray 
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  1. (1).
    Brosilow, C.B and Handley, K.R., AIChE J., Vol. 14, No. 3, 467, (1968)CrossRefGoogle Scholar
  2. (2).
    Eriksson, S., M.Sc. Thesis, Dept. of Chem. Eng., Royal Institute of Technology, Stockholm (1971)Google Scholar
  3. (3).
    Pond, M., Ph.D. Thesis, University of Grenoble (1971)Google Scholar
  4. (4).
    Hu, Y.C. and Ramirez, W.F., AIChE J., Vol. 18, No. 3, 479, (1972)CrossRefGoogle Scholar
  5. (5).
    Kalman, R.E., Bol. Soc. Mat. Mexicana, Vol. 5, 102, (i960)Google Scholar
  6. (6).
    Luyben, W.L., AIChE J., Vol. 16, No. 2, 198, (1970)CrossRefGoogle Scholar
  7. (7).
    Luyben, W.L., I & EC Fundamentals, Vol. 7, No. 3, 502, (1968)CrossRefGoogle Scholar
  8. (8).
    Newell, R.B., Fisher, D.G. and Seborg, D.E., AIChE J., Vol. 18, No. 5, 976, (1972)CrossRefGoogle Scholar
  9. (9).
    Merluzzi, P. and Brosilow, G.B., AIChE J., Vol. 18, No. 4, 739, (1972)CrossRefGoogle Scholar
  10. (10).
    Rijnsdorp, J.S., Automatica, Vol. 3, No. 1, 15, (1965)CrossRefGoogle Scholar
  11. (11).
    Rijnsdorp, J.E., Automatica, Vol. 3, No. 1, 29, (1965)CrossRefGoogle Scholar
  12. (12).
    Rosenbrock, H.H., Trans. Instn. Chem. Engrs., Vol. 40, 36, (1962)Google Scholar
  13. (13).
    Wood, R.K. and Berry, M.W., Paper 7–16 presented at the 21:st Canadien Chemical Engineering ConferenceGoogle Scholar
  14. (14).
    Wood, R.K., McGinnis, R.G. and Liesch, D.W., Paper 55 presented at the 123:rd event of the European Federation of Chemical Engineering, Paris (1973)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1974

Authors and Affiliations

  • Peter Scholander
    • 1
  1. 1.Department of Chemical EngineeringRoyal Institute of TechnologyStockholmSweden

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