COMPARISON BETWEEN DIFFERENT MATHEMATICAL-MODELS FOR THE SIMULATION OF INDUSTRIAL FLUID CATALYTIC CRACKING (FCC) UNITS

Most of the work dealing with the modelling of industrial fluid cataly tic cracking units is based upon a highly empirical approach that help s in building units and operating them, but does not help to elucidate the main features and characteristics of these units for better desig n, control, and optimization. It is shown in this paper that a better insight into the behaviour of these units can be achieved through the use of less empirical mathematical models coupled with industrial veri fications. The present paper emphasizes the bifurcation behaviour of t hese industrial units.