In this paper, we address the constrained infinite horizon linear quadratic
optimal control (CIHLQOC) of chemical processes. Employing the exponential
bound of the closed loop system trajectory that can be computed off-line f
rom the exponential stability properties, it was shown that a finite dimens
ional quadratic program equivalent to the CIHLQOC problem without any on-li
ne optimization. This technique is illustrated with a chemical reactor exam
ple. (C) 2000 Elsevier Science Ltd. All rights reserved.