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Accident # | 137652 |
State Police # | 12-01298 |
Accident Date | 2012-03-05 |
Report Date | 2012-03-09 |
Follow-up Date | 2013-02-22 |
Follow-up: | Yes |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Sulfur Dioxide | 26m | Unit 59 North Flare | NO | YES | NO | 1,257.0 pounds |
Highly Reactive Volatile Organic Compounds (HRVOCs) | 26m | Unit 59 North Flare | NO | NO | NO | 355.0 pounds |
Accident Classified As: Reportable Quantity
The incident that occurred was a unit shutdown and associated flaring event. The wet gas compressor in the Fluidized Catalytic Cracking Unit tripped offline followed by an entire unit shutdown. The shutdown caused hydrocarbons to be routed to the north flare.
States that an initial report was submitted on March 9, 2012, and claims to include details on this event and the pollutants released, though we do not have this document at this time.
RQs exceeded for SO2 and HRVOCs. Also, the opacity standard was exceeded for 8 minutes. Incident only lasted 26 minutes, but the depressuring of the unit continued and flaring lasted approximately 425 minutes. Remediations included cleaning the wet gas compressor motor aux contact and retest to verify appropriate resistance, and also revised compressor control system programming to include motor current to improve reliability of failed-to-start interlock logic.
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