Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2005-08-26
2008-09-09
Barlow, Jr., John E (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C702S183000
Reexamination Certificate
active
07424395
ABSTRACT:
The present invention is a method for detecting an abnormal event for process units of an ethylene processing system. The method compares the operation of the process units to a model developed by principal components analysis of normal operation for these units. If the difference between the operation of a process unit and the normal operation indicates an abnormal condition, then the cause of the abnormal condition is determined and corrected.
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Emigholz Kenneth F.
McLain Richard B.
Wang Robert K.
Woo Stephen S.
Barlow Jr. John E
ExxonMobil Research and Engineering Company
Purwin Paul E.
Washburn Douglas N
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