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ExxonMobil Chemical Plant (286), Baton Rouge
LDEQ Accident Report
| Accident # | 148828 |
| State Police # | 13-02229 |
| Accident Date | 2013-05-21 |
| Report Date | 2013-05-29 |
| 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 |
| Methyl Chloride | 12h 20m | T-7 Tower | NO | NO | NO | 810.0 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Corrosion
On May 21, the Baton Rouge Chemical Plant RLA-1 unit experienced a leak on T-7 Tower due to corrosion under insulation. After further investigation a leaking thermowell was found on the bottom section of T-7.
Discharge Preventable - No
Since normal inspection program does not require 100% stripping of insulation, the corrosion under insulation was not identified.
Notes/Remedial Actions
Immediate remedial action was to isolate tower feed and hydrocarbon was removed from the vessel. ExxonMobil has inspected other similar plugs on the tower for potential corrosion and all findings indicate no corrosion. A Thermal Spray Aluminum coating has been applied to the thermowell to prevent further corrosion under insulation. There were no injuries, complaints, or offsite impact as a result of incident.
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