Abstract
The paper discusses the development of a soft sensor (SS) for an MTBE plant in the cases when the training sample either is small or does not comprise the whole of quality range because of process plant non-stationarity as well as the difficulty and high cost of retrieving more information. In order to build a soft sensor that provides higher accuracy in estimating the quality of the output product, an algorithm for extending the initial training sample using a rigorous model of the distillation column of the methyl-tert-butyl ether production under condition of exactly unknown values of the Murphree trays efficiency has been proposed. The resulting SS enables 40% improvement of product quality prediction.






Similar content being viewed by others
References
Dozortsev, V. M., Itskovich, E. L. & Kneller, D. V. Advanced Process Control: 10 Years in Russia. Automat. Promyshl. no. 1, 12–19 (2013).
Bakhtadze, N. N. Virtual Analyzers: Identification Approach. Autom. Remote Control 65(no. 11), 1691–1709 (2004).
Kadlec, P., Gabrys, B. & Strandt, S. Data-Driven Soft Sensors in the Process Industry. Computers Chem. Eng. 33(no. 4), 795–814 (2009).
Andrijić, Z. ¸U., Cvetnić, M. & Bolf, N. Soft Sensor Models for a Fractionation Reformate Plant Using Small and Bootstrapped Data Sets. Brazilian J. Chem. Eng. 35(no. 2), 745–756 (2018).
Fortuna, L., Graziani, S. & Xibilia, M. G. Comparison of Soft-Sensor Design Methods for Industrial Plants Using Small Data Sets. IEEE Trans. Instr. Measurem 58(no. 8), 2444–2451 (2009).
Napolia, G. & Xibiliab, M. G. Soft Sensor Design for a Topping Process in the Case of Small Datasets. Computers Chem. Eng. 35, 2447–2456 (2011).
Chen, Z.-S., Zhu, B., He, Y.-L. & Yu, L.-A. A PSO Based Virtual Sample Generation Method for Small Sample Sets: Applications to Regression Datasets. Eng. Appl. Artific. Intell. 59, 236–243 (2017).
Shang, C., Yang, F., Huang, D. & Lyu, W. Data-Driven Soft Sensor Development Based on Deep Learning Technique. J. Process Control no. 24, 223–233 (2014).
Abrams, D. S. & Prausnitz, J. M. Statistical Thermodynamics of Liquid Mixtures: A New Expression for the Excess Gibbs Energy of Partly or Completely Miscible Systems. AIChE J. 21(no. 1), 116–128 (1975).
Korn, G. & Korn, T. Mathematical Handbook for Scientists and Engineers: Definitions, Theorems, and Formulas for Reference and Review. (McGraw-Hill, New York, 1968).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Samotylova, S., Torgashov, A. Developing a Soft Sensor for MTBE Process Based on a Small Sample. Autom Remote Control 81, 2132–2142 (2020). https://doi.org/10.1134/S0005117920110120
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0005117920110120