The purpose of this study is to develop a detailed dynamic model of a typical fluidized catalytic cracking (FCC) unit that
consists of the reactor, regenerator, catalyst transport lines, and several auxiliary units (pre-heater, catalyst cooler, and blowers).
Hydrodynamic descriptions for the crucial parts of the unit are incorporated into the model. Special attention has been paid to
the reactor riser to predict the velocity distributions of the catalyst and gas phases, the molar concentrations of IO-lump species,
and the temperature profile by utilizing momentum, mass, and energy balances.
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