Korean Journal of Chemical Engineering

, Volume 24, Issue 6, pp 921–926 | Cite as

Repetitive control of CATOFIN process

  • Seung-Taek Seo
  • Wangyun Won
  • Kwang Soon LeeEmail author
  • Chansul Jung
  • Seokho Lee
Process Systems Engineering, Process Safety, Transport Phenomena


The CATOFIN process is a propane dehydrogenation process for production of propylene. It uses multiple adiabatic fixed-bed reactors where dehydrogenation and regeneration (decoking) are performed alternatively over roughly ten minutes of period for each operation. Taking advantage of the periodic operation, the present research concerns the development of a repetitive control method to improve the operation of the CATOFIN process. The controller is designed to perform feedback action during the regeneration cycle and to perform only state estimation during the dehydrogenation cycle. To improve the performance while overcoming the nonlinearity of the process, a linearized time-varying process was derived from a first-principle model and used for the controller design.

Key words

CATOFIN Process Repetitive Control Fixed-bed Reactor 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
  2. 2.
    J. A. Pena, A. Monzon and J. Santamaria, Applied Catalysis A, 101, 185 (1993).CrossRefGoogle Scholar
  3. 3.
    D. O. Borio and N. S. Schbib, Comp. Chem. Eng., 19,Suppl., 345 (1995).CrossRefGoogle Scholar
  4. 4.
    A. Brito, R. Arvelo, F. J. Garcia and A. R. Gonzalez, Applied Catalysis A, 145, 285 (1996).CrossRefGoogle Scholar
  5. 5.
    J. Gascon, C. Tellez, J. Herguido and M. Menendez, Applied Catalysis A, 248, 105 (2003).CrossRefGoogle Scholar
  6. 6.
    C. Kern and A. Jess, Chem. Eng. Sci., 60, 4249 (2005).CrossRefGoogle Scholar
  7. 7.
    H. S. Mickley, J. W. Nestor, Jr. and L. A. Gould, The Can. J. Chem. Eng., 61 (1965).Google Scholar
  8. 8.
    Y. G. Kim, H. S. Lee and Y. S. Song, Korean J. Chem. Eng., 18, 11 (1980).Google Scholar
  9. 9.
    J. H. Lee, S. Natarajan and K. S. Lee, J. Process Control, 11, 195 (2001).CrossRefGoogle Scholar
  10. 10.
    S. Hara, Y. Yamamoto, T. Omata and N. Nakano, IEEE Trans. AC, 33, 659 (1988).Google Scholar
  11. 11.
    S. Y. Choi, H. S. Kim, K. S. Lee, K. P. Yoo and W. H. Lee, Korean J. Chem. Eng., 8, 44 (1991).CrossRefGoogle Scholar
  12. 12.
    W. H. Yun and K. S. Lee, to be published in Korean J. Chem. Eng. Google Scholar
  13. 13.
    K. J. Åström and B. Wittenmark, Computer controlled systems, 3rd ed., Prentice Hall, New York, NY (1997).Google Scholar
  14. 14.
    Private communication with process engineers in Samsung Engineering Co., Korea.Google Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • Seung-Taek Seo
    • 1
  • Wangyun Won
    • 2
    • 1
  • Kwang Soon Lee
    • 2
    • 1
    Email author
  • Chansul Jung
    • 3
    • 1
  • Seokho Lee
    • 3
    • 1
  1. 1.Honeywell Co. Ltd.SeoulKorea
  2. 2.Department of Chemical and Biomolecular EngineeringSogang UniversitySeoulKorea
  3. 3.Samsung Engineering Co. Ltd.SeoulKorea

Personalised recommendations