Nonlinear inferential control of pulp digesters

Model predictive control technique combined with iterative learning for batch processes

“…and Sullivan, 1988;Cott and Macchietto, 1989 , successive-Ž . linearization-based control Lee and Datta, 1994 , feedback Ž . linearization Soroush andKravaris, 1992 , adaptive control ŽCabassud et al, 1989;Fileti and Pereira, 1997;Wang et al, .…”

Two‐step procedure for data‐based modeling for inferential control applications

“…Similar approaches have been reported in various ap-Ž plications' context Banerjee et al, 1997;Cambell and Rawl-. ings, 1998;Yu et al, 1994 . There also have been numerous articles reporting the success of the model-based approach in Ž batch processes Quintero-Marmol and Luyben, 1992;Lee and Datta, 1994;Russell et al, 1998;Tatiraju and Souroush, . 1997;Tatiraju et al, 1999 .…”

Recursive data‐based prediction and control of batch product quality

“…In this article, we define product quality as those engineering variables of interest that are most closely related to the end-use characteristics and economic success of the product. For example, product quality may be composed of number average molecular weight and polydispersity for a polymerization reactor (Schork et al, 1993;Russell et al, 1998b) or kappa number for a pulp digester (Lee and Datta, 1994). Over the last two decades, increased global competition has resulted in higher demand for the production of uniform quality products from batch and semibatch Correspondence concerning this article should be addreased to J. H. Lee…”