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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 Lee
  • Chansul Jung
  • Seokho Lee
Process Systems Engineering, Process Safety, Transport Phenomena

Abstract

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 

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Copyright information

© Springer 2007

Authors and Affiliations

  • Seung-Taek Seo
    • 1
  • Wangyun Won
    • 2
    • 1
  • Kwang Soon Lee
    • 2
    • 1
  • 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

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