Model-predictive control (MPC) improves the capability of process units by stabilizing operation, increasing throughput, improving fractionator performance, decreasing product quality giveaway, and reducing utility consumption. MPC provides real-time information to higher-level applications, such as planning models and process optimizers. MPC input comes from the distributed control system (DCS), advanced regulatory controllers (ARCs), and laboratory data. A well-implemented MPC controller responds once per minute – or in some cases more frequently – to changes in feedstock, ambient temperature, and so on, by moving several variables simultaneously. For major process units, returns on investment for MPC can exceed $0.50 per barrel, not including collateral benefits, such as improving the efficiency of operators and engineers, and improving process safety.
CITATION STYLE
Robinson, P. R., & Cima, D. (2017). Model-predictive control fundamentals. In Springer Handbooks (Vol. PartF1, pp. 833–839). Springer. https://doi.org/10.1007/978-3-319-49347-3_26
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