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Valero (1238), Meraux

LDEQ Accident Report

Accident #80323
PDF AvailablePDF
State Police #05-04471
Accident Date2005-07-06
Report Date 2005-07-12
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
Sulfur Dioxide4hNorth FlareNOYESNO11,804.0 pounds
Sulfur Dioxide6hSouth FlareNOYESNO12,816.0 pounds
Sulfur Dioxide1h#2 Sulfur Recovery Unit Incinerator #1-93NOYESNO53.0 pounds
Sulfur Dioxide4h 15m#3 Sulfur Recovery Unit Incinerator #5-00NOYESNO226.0 pounds
Particulate MatterNo information givenNo information givenNOYESNOBRQ

Accident Classified As: No Information Given

Cause of Problem: Weather

On 7/6/05 Murphy Oil experienced a refinery-wide power interruption. During the shutdown and ensuing startup, the refinery experienced elevated sulfur dioxide and intermittent particulate emissions at the flares and the Sulfur Recovery Unit incinerator stacks. The power outage was apparently the result of high winds generated by Tropical Storm Cindy.

Discharge Preventable - No

Notes/Remedial Actions

Immediate action was to safely get the units stabilized and try to avoid damage to equipment during the emergency shutdown. To ensure a safe restart, the refinery purged rich amine from #1 and #2 Amine units and the #2 Sour Water Stripper to the flares. The refinery minimized SO2 emissions during startup by having the #2 and #3 SRUs pre-heated prior to introduction of acid gas. Received two citizen complaints. Took steps to minimize emissions for the re start.