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ExxonMobil Refinery (2638), Baton Rouge
LDEQ Accident Report
| Accident # | 123218 |
| State Police # | 10-02331 |
| Accident Date | 2010-05-03 |
| Report Date | 2010-09-30 |
| 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 |
| Benzene | no information given | Powerformer tower | NO | NO | YES | 8.0 pounds |
| Flammable Vapor | no information given | Powerformer tower | NO | NO | YES | 4,350.0 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Process Upset
Atmospheric safety valve lifted on the Powerformer tower due to operational issues with gas compressor that supply material to different refining units.
Discharge Preventable - No
Not preventable as compressor tripped unexpectedly.
Notes/Remedial Actions
Relieving the pressure on the tower did not reseat the valve. Operators suited up and isolated the valve when it reseated stopping the release. Procedures for removing the compressors from service will be altered to prevent a similar occurrence. This release exceeded the RQ for flammable vapors.
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