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Batch process monitoring methods, such as multiway PCA and multiblock multiway PLS, make use of time profiles to define expected process variable trajectories for statistical process control. Nevertheless, continuous process counterpart methods of desired process variable profiles have not been developed, nor addressed in the literature. This work presents a novel methodology to define multiple operating...
This paper describes the experimental application of Nonlinear Model-Predictive Control (NMPC) in conjunction with on-line state and parameter estimation to control a packed distillation column. Due to mass transfer effects, the process gain changes sign within the region of operation, which precludes the use of a linear controller for closed-loop control.
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