PLANT-WIDE CONTROL OF AN INDUSTRIAL-PROCESS

This paper focuses on the development of a decentralized plantwide con trol concept for a real existing chemical plant via dynamic simulation and controllability analysis. The first step includes modelling the p lant with the dynamic simulation package SPEEDUP(TM). The model is val idated using data from the existing process. A systematic approach is applied including heuristic methods in combination with controllabilit y analysis. The results are compared with the existing control structu re. Finally, a procedure is recommended for prediction of the dynamic behaviour of the material recycle.