APPLICATION OF ABNORMAL EVENT DETECTION TECHNOLOGY TO FLUIDIZED CATALYTIC CRACKING UNIT

摘要

The method for detecting an abnormal event for process units of a fluidized catalytic cracking unit, which uses modeling steps to compare the operation of the process units to a statistical model and to an engineering model. The statistical models are developed by principle components analysis of the normal operation of the units. The engineering models are based on partial least squares analysis and correlation analysis between variables. When the difference indicated between the operation of a process unit and the normal model result indicates an abnormal condition, then the cause of the abnormal condition is determined and corrected (1).