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Accident # | 127976 |
State Police # | 10-06914 |
Accident Date | 2010-12-03 |
Report Date | 2010-12-09 |
Follow-up Date | 2010-12-21 |
Follow-up: | Yes |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Sulfur Dioxide | 4h 37m | FLARE: S-2 & S-3 Sulfur units; Coker flare (FE-401), Shell Go-1 & OL-5 Flares | NO | YES | NO | 28,215.0 pounds |
Carbon Monoxide | 4h 37m | FLARE: S-2 & S-3 Sulfur units; Coker flare (FE-401), Shell Go-1 & OL-5 Flares | NO | YES | NO | 3,972.0 pounds |
Nitrogen Oxide | 4h 37m | FLARE: S-2 & S-3 Sulfur units; Coker flare (FE-401), Shell Go-1 & OL-5 Flares | NO | YES | YES | 659.5 pounds |
Volatile Organic Compounds (VOCs) | 4h 37m | FLARE: S-2 & S-3 Sulfur units; Coker flare (FE-401), Shell Go-1 & OL-5 Flares | NO | NO | YES | 989.5 pounds |
Hexane | 4h 37m | FLARE:Shell Go-1 & OL-5 Flares | NO | NO | NO | 85.0 pounds |
Benzene | 4h 37m | FLARE:Shell Go-1 & OL-5 Flares | NO | NO | YES | 0.1 pounds |
Accident Classified As: Reportable Quantity
Motiva's S-2 and S-3 sulfur plants tripped offline while analyzer FI-3677 was being calibrated. During analyzer calibration, air flow was reduced, initiating shutdown of S-2. Acid gas was diverted through to S-3 and pushed into gas knock out drum resulting in shut down of S-3. Acid gas was routed to Coker Flare and Shell's Go-1 flare. Shared incident with SHELL CHEMICAL LP. Emissions included flaring from both facilities.
Letter states that incident was preventable by Motiva.
RQ. Sulfur plants were restarted, operating procedures for safely calibrating instruments will be developed and included in operations training program, training conducted for personnel. Calculations provided confirm that the reportable quantity for sulfur dioxide, carbon monoxide, nitrogen oxide and particulate matter was exceeded.
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