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|State Police #||12-07915|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Propylene||18h||heat exchanger in the GO-1 Process Unit||NO||NO||YES||153.7 pounds|
|Propane||18h||heat exchanger in the GO-1 Process Unit||NO||NO||YES||11.6 pounds|
Accident Classified As: Reportable Quantity
Operations discovered a leak on a heat exchanger in the GO-1 Process Unit. The release began at 2100 hours on December 17, 2012 and ended at 1500 hours on December 18, 2012 for a duration of 18 hours.
This incident was not preventable by Shell Chemical. Inspection program did not predict the failure.
Maintenance tightened bolts on the head of the exchanger and the leak stopped. Insulation on the exchanger head was removed and repairs were made to the exchanger. Follow-up letter reported that the reportable quantity for High Reactive Volatile Organic Compounds (propylene) was exceeded.