A pulp mill benchmark problem for control: application of plantwide control design |
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| Authors: | J J Castro F J Doyle III |
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| Affiliation: | a Chemical Engineering Department, University of Delaware, Newark, DE 19711, USA;b Chemical Engineering Department, University of California, Santa Barbara, CA 93106, USA |
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| Abstract: | A heuristic for design of plantwide control strategies is introduced and applied to the millwide control of a previously presented pulp mill benchmark. Two control strategies (decentralized control and unit-based model predictive control) are compared according to their capacity to reduce the total error and maximize the operating profits. The control strategies are studied through closed-loop simulations of the process including several disturbances and setpoint changes in the digester, oxygen reactor, bleach plant, recausticizing plant and lime kiln. |
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| Keywords: | Plantwide control Decentralized control Model predictive control Pulp mill |
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