Greek refinery uses data reconciliation to calibrate instruments

Nikolaos G. Voros, Chris T. Kiranoudis, Dimitrios Marinos-Kouris National Technical University of Athens Athens, Greece An on-line data reconciliation system (DRS) has been developed for the diesel production process of the Hellenic Aspropyrgos Refinery SA's refinery in Aspropyrgos, Greece. The new system successfully recognizes and prompts the operator of malfunctions in specific instrumentation. Many process control and optimization systems collect large amounts of process data to make small improvements in process performance. Errors in process data or unreliable methods of dealing with these errors can mask actual changes in process performance. Data reconciliation is a...

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