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Motiva Enterprises (2719), Convent
LDEQ Accident Report
| Accident # | 117144 |
| State Police # | 09-2544 |
| Accident Date | 2009-08-07 |
| Report Date | 2009-08-14 |
| Follow-up Date | 2009-09-03 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 7h 21m | flare no. 2 and wet gas scrubber | NO | YES | NO | 76,337.0 pounds |
| Nitrogen Oxide | 7h 21m | flare no. 2 and wet gas scrubber | NO | YES | YES | 333.0 pounds |
| Hydrogen Sulfide | 7h 21m | flare no. 2 and wet gas scrubber | NO | NO | NO | 191.0 pounds |
| Carbon Monoxide | 7h 21m | flare no. 2 and wet gas scrubber | NO | YES | NO | 11,369.0 pounds |
| Volatile Organic Compounds (VOCs) | 7h 21m | flare no. 2 and wet gas scrubber | NO | NO | YES | 688.0 pounds |
| Particulate Matter 10 | 7h 21m | flare no. 2 and wet gas scrubber | NO | YES | NO | 37.0 pounds |
Accident Classified As:
Cause of Problem: Equipment Failure
Regenerated Catalyst Slide Valve (RCSV) of the Fluid Catalytic Cracking Unit (FCCU) changed position without a corresponding command from the control system causing trip of the gas turbine driving the Wet Gas Compressor because of high exhaust temperature--overpressure control valve opened to flare. Exceeded RQ's.
Discharge Preventable - No
"there were no indications of any issues with the circuit board or the servo prior to this incident."
Notes/Remedial Actions
"Took immediate action to begin the process of stabilizing, slowing down, and diverting feed from the FCCU riser." Circuit board replaced, cleaned the servo and will replace it when spare arrives.
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