Olefin plant operation targets should be aligned directly with economics to maximize profit rate. The 1996 performance measure method for process control and IT that associates a profit tradeoff with each CV/KPI distribution allows olefin plant operators who know the financial consequences of violating limits to rigorously align operating conditions to economics, generating profit >0.005 $/lb ethylene. The risk optimization method, candidate applications, requirements and eleven important results are given.

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