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Motiva Enterprises (2719), Convent
LDEQ Accident Report
| Accident # | 139974 |
| State Police # | 12-03266 |
| Accident Date | 2012-05-24 |
| Report Date | 2012-05-31 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 52m | Flare #3 | NO | YES | NO | 14,841.0 pounds |
| Hydrogen Sulfide | 52m | Flare #3 | NO | NO | NO | BRQ |
Accident Classified As: Reportable Quantity
Cause of Problem: Equipment Failure
During normal operation, two redundant level control valves on the bottom of 70F-107 failed, and liquid filled the vessel. This caused the pressure of the vessel to increase, resulting in the vessel's pressure relief device to open to the flare. Sent to Flare #3
Discharge Preventable - Under Investigation
Notes/Remedial Actions
Gases were contained in the Flare Gas Recovery system until maximum operating pressures of the system required the refinery to flare. The operating unit immediately reduced charge to minimize the generation of gas routed to the flare. Reactor temperatures and charge rates were reduced while maintenance repaired the two valves. Stable operations were established and the flaring ended. Manager bypassed the unit to stabilize the vessel. Fugitive emissions sent to Flare #3. Another follow-up report will be submitted at the conclusion of the investigation of the root cause and any appropriate modifications or adjustments.
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