Adaptive Control of Simulated Moving Bed Plants Using Comsol’s Simulink Interface
Preparative chromatography is an important separation method where the simulated moving bed (SMB) technology is an increasingly used separation process for binary mixtures. Several chromatographic columns are arranged in a ring where the feedings and drains are changed cyclically to maintain a continuous separation. For this reason, an adaptive controller is proposed to adjust the flow rates automatically.
The process is described by several coupled partial differential equations modeled with the aid of COMSOL. The proposed control concept is a simple and effective way to control SMB plants. The only requirements to initiate the control loop are the volumetric flow rates and switching time for complete separation, which are always known by the operators.
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