This paper presents a case-study where model predictive control is app
lied to control a nonlinear, open-loop unstable process called the Ten
nessee Eastman Challenge Process. Both the base case and transitions b
etween different operating points are considered. The control scheme i
s based on an input-output model identified from plant data. The Model
Predictive Controller (MPC) controller acts as a supervisory controll
er that dictates the setpoints for a lower level PID loop structure. S
imulations are presented to illustrate its effectiveness or disturbanc
e rejection and setpoint tracking. (C) 1997 Elsevier Science Ltd.