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Accident # | 126163 |
State Police # | 10-05131 |
Accident Date | 2010-09-06 |
Report Date | 2010-09-13 |
Follow-up Date | 2011-01-07 |
Follow-up: | Yes |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Spent Catalyst | 30mins | FCC regenerator flue gas scrubber vent | NO | NO | NO | 38,000.0 pounds |
Sulfur Dioxide | 8hrs | FLARE: Thox stack, Flare # 1 and 2 | NO | YES | NO | 106,646.0 pounds |
Hydrogen Sulfide | 4h 11m | FLARE: Flare #1 | NO | NO | NO | 283.0 pounds |
Accident Classified As:
Bus bar short to ground due to unsealed air gaps created a voltage dip which resulted in power loss to multiple units which then had to flare. Pressure imbalance in the FCC regenerator resulted in loss of catalyst through the regenerator flue gas scrubber vent. FLARE.
"The loss of power and voltage dip was unexpected and not reasonably foreseeable."
"To reduce the likelihood of recurrence, sealant was installed between the bus bars and supports in PS 7711 and acoustic inspection is being performed at another power station that was designed and installed by the same contractor." Refinery letter states that "there was no emergency condition related to this release and the resulting community exposures would not be expected to have acute or chronic health impacts."
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