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Accident # | 139226 |
State Police # | 12-02590 |
Accident Date | 2012-04-30 |
Report Date | 2012-05-04 |
Follow-up Date | 0000-00-00 |
Follow-up: |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Carbon Monoxide | 23m | Wet gas compressor | NO | YES | NO | 56.0 pounds |
NOx | 23m | Wet gas compressor | NO | NO | YES | 10.0 pounds |
Volatile Organic Compounds (VOCs) | 23m | Wet gas compressor | NO | NO | YES | 21.0 pounds |
Sulfur Dioxide | 23m | Wet gas compressor | NO | YES | NO | 768.0 pounds |
Hydrogen Sulfide | 23m | Wet gas compressor | NO | NO | NO | 2.0 pounds |
Accident Classified As: Reportable Quantity
The Wet Gas Compressor in the delayed coking unit at Valero St. Charles Refinery malfunctioned resulting in excess SO2 emissions at flares 1 and 2.
Not enough information at this time to determine the ability to prevent this incident.
Refinery fuel gas was combusted in Flare 1 and Flare 2 and the resulting combustion byproducts rapidly dispersed. Emissions were minimized by restarting the wet gas compressor. This incident is still under investigation. No procedures or preventative measures have been identified at this time.
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