Calibrating the Aspen HYSYS Petroleum Refining FCC Model

Calibrating the Aspen HYSYS Petroleum Refining FCC Model 

Given the variety of feedstock that the FCC unit processes, it is unlikely that a single set of kinetic parameters will provide accurate and industrially useful yield and property predictions. In addition, changes in catalyst may significantly alter the yield distribution. Therefore, it is necessary to calibrate the model to a base scenario. Table 4.6 lists the key calibration parameters for the FCC model. We group them by their effects on the model predictions. 

Overall reaction selectivity Selectivity to C (Coke lump) Selectivity to G (Gasoline lump) Selectivity to L (VGO lump) 

Distribution of light gas components (C1-C4) Selectivities to C1-C4 light gases 

Deactivation Factors accounting for the metals content and activity of the equilibrium catalyst (ECAT) 

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