Model predictive control of a wet limestone flue gas desulfurization pilot plant

Journal Article · Mon Jun 15 00:00:00 EDT 2009 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie801530x· OSTI ID:21212653

Perales, A L.V.; Ollero, P; Ortiz, F J.G.; Gomez-Barea, A ^[1]

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1. University of Seville, Seville (Spain). Dept. of Chemical & Environmental Engineering

A model predictive control (MPC) strategy based on a dynamic matrix (DMC) is designed and applied to a wet limestone flue gas desulfurization (WLFGD) pilot plant to evaluate what enhancement in control performance can be achieved with respect to a conventional decentralized feedback control strategy. The results reveal that MPC can significantly improve both reference tracking and disturbance rejection. For disturbance rejection, the main control objective in WLFGD plants, selection of tuning parameters and sample time, is of paramount importance due to the fast effect of the main disturbance (inlet SO{sub 2} load to the absorber) on the most important controlled variable (outlet flue gas SO{sub 2} concentration). The proposed MPC strategy can be easily applied to full-scale WLFGD plants.

• OSTI ID: 21212653
• Journal Information: Industrial and Engineering Chemistry Research, Vol. 48, Issue 11; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
LIME-LIMESTONE WET SCRUBBING PROCESSES
PILOT PLANTS
ON-LINE CONTROL SYSTEMS
POLLUTION CONTROL EQUIPMENT