Economic Benefit from Progressive Integration of Scheduling and Control for Continuous Chemical Processes

Performance of integrated production scheduling and advanced process control with disturbances is summarized and reviewed with four progressive stages of scheduling and control integration and responsiveness to disturbances: open-loop segregated scheduling and control, closed-loop segregated schedul...

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Bibliographic Details
Published in:Processes 2017-12, Vol.5 (4), p.84
Main Authors: Beal, Logan, Petersen, Damon, Pila, Guilherme, Davis, Brady, Warnick, Sean, Hedengren, John
Format: Article
Language:English
Subjects:
Computer simulation
Continuously stirred tank reactors
Disturbances
Integration
Nonlinear control
Predictive control
Process controls
Production scheduling
Rescheduling
Variations
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Summary:Performance of integrated production scheduling and advanced process control with disturbances is summarized and reviewed with four progressive stages of scheduling and control integration and responsiveness to disturbances: open-loop segregated scheduling and control, closed-loop segregated scheduling and control, open-loop scheduling with consideration of process dynamics, and closed-loop integrated scheduling and control responsive to process disturbances and market fluctuations. Progressive economic benefit from dynamic rescheduling and integrating scheduling and control is shown on a continuously stirred tank reactor (CSTR) benchmark application in closed-loop simulations over 24 h. A fixed horizon integrated scheduling and control formulation for multi-product, continuous chemical processes is utilized, in which nonlinear model predictive control (NMPC) and continuous-time scheduling are combined.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr5040084