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|State Police #||09-01734|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||20 minutes||308F-D-1 (Low Pressure Flare)||NO||YES||NO||1,254.0 pounds|
|Nitrogen Oxide||20 minutes||308F-D-1 (Low Pressure Flare)||NO||YES||YES||5.0 pounds|
|Hydrogen Sulfide||20 minutes||308F-D-1 (Low Pressure Flare); 191-PSV-009||NO||NO||NO||13.0 pounds|
|Hydrocarbon||20 minutes||308F-D-1 (Low Pressure Flare)||NO||NO||YES||49.0 pounds|
Accident Classified As:
The 891-K-1 Compressor tripped off-line due to a high liquid level inside the first stage suction drum (891-V-15). This was caused by high liquid levels in the fractionator tower's reflux drum (891-V-12) due to coke fines plugging the filters of the L-11 reflux pumps and L-13 Sour Water pumps at an unexpectedly rapid rate. The compressor's suction steam is automatically diverted to the Low Pressure Flare (308F-D-1) during an emergency shutdown of the compressor. Monitoring at the refinery permitter was performed and "there was no offsite impact."
Unexpected trip of the Coker Compressor due to high level in the first stage suction drum of the compressor.
The compressor was started and brought online as soon as proper levels could be established in the first stage suction drum. An investigation is in process to determine the cause of the high levels in the first stage suction drum (which caused the compressor to trip).