September 2000

Special Report: Process Control and Information Systems

Modern advanced control pays back rapidly

Applying proven multivariable predictive control (MPC) techniques coupled with robust online product quality predictions is an effective way to maximize unit profitability. This approach has been used..

la Grange, T. G., Honeywell Hi-Spec Solutions; Taylor, A. J., ProSys Engineering Pty Ltd.; Gous, G. Z., Sasol Technology

Applying proven multivariable predictive control (MPC) techniques coupled with robust online product quality predictions is an effective way to maximize unit profitability. This approach has been used throughout during a joint project on a refinery in South Africa. The results for the hydrotreater unit are astounding, with an estimated payback period of less than two months. Use of MPC is not new in the HPI sector; early generation approaches date back to the 1980s. Modern MPC engines incorporate leading-edge solution techniques to provide maximum robustness and performance, to the advantage of the process operator. This technology has been used extensively to squeeze hidden profits out of

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