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Processes 2017, 5(4), 84; https://doi.org/10.3390/pr5040084

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

1
Department of Chemical Engineering, Brigham Young University, Provo, UT 84602, USA
2
Department of Computer Science, Brigham Young University, Provo, UT 84602, USA
*
Author to whom correspondence should be addressed.
Received: 14 November 2017 / Revised: 3 December 2017 / Accepted: 7 December 2017 / Published: 13 December 2017
(This article belongs to the Special Issue Combined Scheduling and Control)
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Abstract

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. View Full-Text
Keywords: scheduling; model predictive control; dynamic market; market fluctuations; process disturbances; nonlinear; integration scheduling; model predictive control; dynamic market; market fluctuations; process disturbances; nonlinear; integration
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Beal, L.D.R.; Petersen, D.; Pila, G.; Davis, B.; Warnick, S.; Hedengren, J.D. Economic Benefit from Progressive Integration of Scheduling and Control for Continuous Chemical Processes. Processes 2017, 5, 84.

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