Plant-wide hierarchical optimization and control of an industrial hydrocracking process

- A model for an industrial hydrocracking plant is presented for plant-wide control studies.
- The model includes both the reactor and the fractionator.
- A hierarchical plant-wide control structure is systematically constructed for real-time optimization purposes.
- A supervisory MPC coordinates the actions of the decentralized reactor and fractionator MPC controllers.
- The proposed control system is able to make the necessary transition in product distributions as determined by economic optimization.