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ExxonMobil Chemical Plant (286), Baton Rouge

Releases of Highly Reactive Volatile Organic Compounds (HRVOCs)

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
113980

2009-04-06		RTO unit

Cause: RTO unit atmospheric safety and associated flaring caused by loss of an electronic card and computer failure. Failure of a computer control card resulted in several control valves to fail in the closed position and the atmospheric safety valve then lifted to the flare.

Followup: No

Notes: The card was replaced with a spare and the unit operations were reduced to minimize released.