10 time

10 time

Fig. 10.30

process in

Performance of linear control compared to nonlinear control for the industrial RD Fig. 10.29

structures. Further, it is often useful to have a look at the column profiles for proper sensor location. Non-uniqueness arising in inferential control can be avoided by including direct or indirect measures for conversion into the control scheme.

The optimal control structure always depends on the specific type ofprocess considered. Further research is required to develop more general guidelines for control structure selection of RD processes depending on the dominating process characteristics.

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