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Valero (1238), Meraux

LDEQ Accident Report

Accident #97825
State Police #06-03900
Accident Date2007-07-12
Report Date 2007-07-20
Follow-up Date 0000-00-00
Follow-up: No Information Provided

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Sulfur Dioxide1hThermal ReactorNOYESNO113.0 pounds

Accident Classified As:

Cause of Problem: Corrosion

MOUSA shut down the #2 SRU in order to inspect a visible leak in the Thermal Reactor. MOUSA found localized corrosion damage to the shell resulting from acid gas infiltrating a small defect in the refractory.

Discharge Preventable - No

Notes/Remedial Actions

This incident was not preventable because the leak in the Thermal Reactor was not a predictable event. Remedial Measures - MOUSA shut down the unit, conducted a thorough inspection, and patched the leak in accordance with API 510. MOUSA will repair the internal refractory during the next scheduled turnaround. MOUSA conducts routine on-stream ultrasonic inspections on this unit to monitor equipment fitness