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Robust Inferential Control for a Packed-Bed Reactor

Budman, Hector M. and Webb, Chris and Holcomb, Tyler R. and Morari, Manfred (1992) Robust Inferential Control for a Packed-Bed Reactor. Industrial & Engineering Chemistry Research, 31 (7). pp. 1665-1679. ISSN 0888-5885. https://resolver.caltech.edu/CaltechAUTHORS:20180524-162132927

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Abstract

Two different inferential control schemes are applied to an experimental fixed bed methanation reactor. The first scheme, proposed initially by Brosilow, is designed based on Kalman filter estimation. The second less traditional design uses an estimator computed from the partial least squares regression method (PLS). The second approach was found to give superior performance when the nonlinear system under study is operated in a wide range of operating points. Due to the nonlinearity of the system it is essential to address the issue of robustness of the proposed schemes. This is formally done in this work using structured singular value theory. For the robustness analysis it is crucial to develop a realistic but not overly conservative uncertainty description. Since the PLS estimator uses a large number of measurements, a robust design based on the uncertainty associated with each one of the measurements would be very conservative. To overcome this problem, a lumped uncertainty description is proposed which is identified directly from experiments.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://dx.doi.org/10.1021/ie00007a013DOIArticle
Additional Information:© 1992 American Chemical Society. Received for review March 24, 1992. Accepted April 13, 1992. H.M.B. acknowledges the financial support of the Rothschild and Bantrell Foundations. T.R.H. is a recipient of a National Science Foundation Graduate Fellowship. Acknowledgment is made to the donors of the Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research. This research was supported in part by the Caltech Consortium in Chemistry and Chemical Engineering. Founding members of the Consortium are E. I. du Pont de Nemours and Company, Inc., Eastman Kodak Company, Minnesota Mining and Manufacturing Company, and Shell Oil Company Foundation.
Funders:
Funding AgencyGrant Number
Rothschild FoundationUNSPECIFIED
Bantrell FoundationUNSPECIFIED
NSF Graduate Research FellowshipUNSPECIFIED
American Chemical Society Petroleum Research FundUNSPECIFIED
Caltech Consortium in Chemistry and Chemical EngineeringUNSPECIFIED
Issue or Number:7
Record Number:CaltechAUTHORS:20180524-162132927
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180524-162132927
Official Citation:Robust inferential control for a packed-bed reactor Hector M. Budman, Chris Webb, Tyler R. Holcomb, and Manfred Morari Industrial & Engineering Chemistry Research 1992 31 (7), 1665-1679 DOI: 10.1021/ie00007a013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86608
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:25 May 2018 14:03
Last Modified:03 Oct 2019 19:45

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