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Accident # | 88939 |
State Police # | 06-04081 |
Accident Date | 2006-06-28 |
Report Date | 2005-07-05 |
Follow-up Date | 0000-00-00 |
Follow-up: | No |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Sulfur Dioxide | 4 h 30 m | South Flare EPN #3-77 | NO | YES | NO | 29,813.0 pounds |
Accident Classified As:
#3 SRU (Sulfur Recovery Unit) Bypass- Unintentional trip of the unit from a satellite monitoring location that was thought to have no active control. When SRU returned to service Sulfur Dioxide leaked from #3 TGT (Tail Gas Treater) until sufficient acid gas could sustain #3 TGT.
Was an inadvertant human error
Plant followed operating procedures to mitigate the damage routing acid gas to the S. flare. Also, implimented sulfur shedding plan to reduce Sulfur Dioxide emissions. Brought the SRU online as soon as possible. Afterward, reconfigured DCS (Distributive Control System) to ensure that satellite monitoring screens had no active control capability.
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