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ExxonMobil Refinery (2638), Baton Rouge

Releases of 4-Methylheptane

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release

alkylation unit

Followup: No

Notes: water was sprayed on the vapor cloud to mitigate hazards from the release. Upstream and downstream block valves had to be closed to stop the leak; this was not preventable because the gasket failed- it was an appropriate gasket for the service
28.0 pounds

Leak/feed line leak
Cause: Corrosion/corrosion leak occurred through a 3/8 hole on the #2 feed inlet pip

Followup: No

Notes: The tower that the corroded pipe led to was shut down and filled with water to stop residual hydrocarbon vapors from leaking out of the hole. The hole was plugged.An engineered leak box was installed on the line.
2.0 pounds