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Phillips 66 (2418), Belle Chasse
LDEQ Accident Report
| Accident # | 133170 |
| State Police # | 11-04988 |
| Accident Date | 2011-08-17 |
| Report Date | 2011-08-23 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | No |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 1h 28m | Tail Gas Treater/Sulfur Incinerator Stack (591-D-21X) | NO | YES | NO | 355.0 pounds |
| Sulfur Dioxide | 25m | FLARE: Low Pressure Flare (308F-D-1) | NO | YES | NO | 375.0 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Equipment Failure
During operational adjustments to the air flow to SRU-592 Claus unit, the air blower discharge pressure decreased below the set point and diverted gas from the tail gas treater (TRT) to the SRU incinerator (591-D-21X) to the Low Pressure Flare (308F-D-1).
Discharge Preventable - No
The discharge was unpreventable due to an unexpected decrease in discharge pressure in the SRU-592 Claus unit air blower.
Notes/Remedial Actions
SRU operations were stabilized allowing the flare valve to be closed and the tail gas to be routed back into the Tail Gas Treater.
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