DESIGN OF MODIFIED IMC-BASED PID CONTROLLERS FOR ISOTHERMAL TUBULAR REACTORS WITH AXIAL MASS DISPERSION AND FIRST-ORDER REACTION

  • A.O.F. Williams
  • V.O. Adeniyi

Abstract

This paper presents the design of modified IMC-based PID-type controllers for isothermal tubular
reactors carrying out first order-order reaction, and having axial mass dispersion. The partial
differential equation modeling the system was lumped using the modal decomposition technique and the
lumped model was then used for the controller design based on a modified Internal Model Control
(IMC)-PID method earlier developed by the authors. The results of closed-loop simulations demonstrate
the superior performance of the PID-type controllers so designed when compared with the
Ziegler-Nichols PID tuning parameters. The PID-type controllers also show excellent robustness to
plant/model mismatch.

Author Biographies

A.O.F. Williams

Department of Chemical & Petroleum Engineering, University of Lagos, Akoka, Lagos.

V.O. Adeniyi

Department of Chemical & Petroleum Engineering, University of Lagos, Akoka, Lagos.

Published
2019-07-16