Simultaneous validation of online analyzers and process simulators by process data reconciliation

Barbara Farsang, Zoltan Gomori, Gyula Horvath, Gabor Nagy, Sandor Nemeth, J. Abonyi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present a model based algorithm for simultaneous validation of online analysers and process simulators. Reconciled on-line and historical process data satisfying balance and model equations provides the opportunity to validate and improve process models and soft sensors. Accurate simulation results and laboratory measurements can be used for the validation of online analysers. Validated and reconciled data can be used to the iterative and interactive identification of the unknown parameters of the simulator, e.g. for the determination of kinetic parameters. This method can also be used for monitoring and diagnostics of complex processes because situations when the operating conditions have been significantly changed can be discovered. The approach is illustrated by the analysis of an industrial hydrogenation system. We present the proposed iterative and interactive procedure of model development and analyser validation, the applied data reconciliation method, and the details of the case study. The results show the applicability of the proposed scheme in industrial environment and the benefits of the extracted information in the maintenance and monitoring of advanced model based process engineering tools. The developed tool can increase operating efficiency that is the key of reducing energy consumption and environmental impact. This is especially true in hydrocarbon industry where the operation of the technology is supported by process simulator and on-line analyser based advanced process control systems.

Original languageEnglish
Pages (from-to)1303-1308
Number of pages6
JournalChemical Engineering Transactions
Volume32
DOIs
Publication statusPublished - 2013

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Simulators
Monitoring
Process engineering
Hydrocarbons
Kinetic parameters
Hydrogenation
Process control
Environmental impact
Identification (control systems)
Energy utilization
Control systems
Sensors
Industry

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Simultaneous validation of online analyzers and process simulators by process data reconciliation. / Farsang, Barbara; Gomori, Zoltan; Horvath, Gyula; Nagy, Gabor; Nemeth, Sandor; Abonyi, J.

In: Chemical Engineering Transactions, Vol. 32, 2013, p. 1303-1308.

Research output: Contribution to journalArticle

Farsang, Barbara ; Gomori, Zoltan ; Horvath, Gyula ; Nagy, Gabor ; Nemeth, Sandor ; Abonyi, J. / Simultaneous validation of online analyzers and process simulators by process data reconciliation. In: Chemical Engineering Transactions. 2013 ; Vol. 32. pp. 1303-1308.
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