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|State Police #||09-01101|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||28 minutes||308F-D-1 (Low Pressure Flare)||NO||YES||NO||1,480.5 pounds|
Accident Classified As:
The refinery experienced an unexpected trip in the Coker Compressor which resulted in an unexpected release of SO2. Approximately 1,480.5 lbs of S02 was released. The 891-K-1 Compressor tripped off-line due to a low seal oil liquid level inside Tank (891-V-23). This was due to a lack of pressure controller (PCV-152) causing sea oil to spill back into the main Seal Oil Tank (T-2B-X) and not holding enough pressure to keep the overhead seal oil tank properly filled. The compressor's suction sctream is automatically diverted to the Low Pressure Flair (308F-D-1) in an emergency shutdown.
"Unexpected trip of the Coker Compressor due to low seal oil liquid level in the Overhead Seal Oil Tank."
The compressor was started and brought online as soon as proper Seal Oil level could be established in the Overhead Seal Oil Tank. "No offsite impact detected."