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Application of Soft Sensors, Dynamic Simulation and Model Based Control to Digestion Charge Control

On-line measurement of Liquor Conductivity has been successfully used in numerous Alumina Refineries to provide improved control of the molar ratio (MR) of liquors leaving digestion (DIS). Further improvements in Charge Control have been made at the Gove Refinery using techniques such as soft sensors and model based control. This paper describes the successful development and implementation of a model based control strategy and an Operator Decision Support scheme for Digestion Charge Control.

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Details:
Technical Paper (110 KB , PDF)
Author: John Gorst, Terry Snow

Description:
Matrikon™ Control Performance Optimizer Technical Paper.