Application of abnormal event detection technology to...

Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation

Reexamination Certificate

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Reexamination Certificate

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08005645

ABSTRACT:
The present invention is a method for detecting an abnormal event for process units of a hydrocracking unit. The method compares the operation of the process units to a model developed by principle 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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Mylaraswamy, Dinkar, Bullemer, Peter, Honeywell Laboratories; Emigholz, Ken, EMRE, ExxonMobil, “Fielding a Multiple State Estimator Platform”, NPRA Computer Conference, Chicago, IL, Nov. 2000.

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