초록 |
A process optimization system has been developed for both full and partial combustion modes of a modern-type FCC process on the basis of the following components: a detailed steady-state process model, model parameter estimator, and economic process optimizer. The developed process optimization system is able to find an optimal operating condition of a typical FCC process which is usually comprised of the reactor, regenerator, main-fractionator, and most of auxiliary units (the feed pre-heater, catalyst cooler, air blower, wet gas compressor, stack gas expander, boilers, and valves). Then, several supervisory multivariable control systems are designed to effectively move the process condition to an optimal point. The performance of the optimization and control systems is investigated when applied to both the full and partial combustion modes of FCC processes. |