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|Accident #||No LDEQ Number Available|
|State Police #||09-05600|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||29 minutes||308F-D-1 (Low Pressure Flare)||NO||YES||NO||407.3 pounds|
Accident Classified As:
"During the planned and controlled shut down of the Saturated Gas Unit's Compressor for an emergency maintenance repair, the Diesel Hydrotreater Overhead gases were re-routed to the FCC Unit's compressor. While routing the gases to the FCC compressor, increased pressure drop caused the Diesel Hyrdrotreater overhead pressure controller to open the Low Pressure Flair (308F-D-1). The overhead pressure was adjusted which subsequently stabilized operations resulting in the closing of the flare valve..."
After a root cause investigation, it was determined that the a corrective action should be implemented. The Diesel Hydrotreater's Overhead pressure "shall be increased prior to routing that streat to the FCC compressor. This step should minimize the chance of opening the flare valve in the overhead system and also overcome the pressure drop phenonenon experienced while routing the gases to the FCC compressor. Fence-line monitoring reported "no offsite impact."