LA Bucket Brigade : Refinery Accident Database

About the Database

ExxonMobil Refinery (2638), Baton Rouge

LDEQ Accident Report

Accident #	105542-105544
State Police #	08-02720, 08-02721
Accident Date	2008-05-11
Report Date	2008-05-16
Follow-up Date	0000-00-00
Follow-up:	Yes

Pollutants Released

Pollutant	Duration	Point Source	Greenhouse Gas	Criteria Pollutant	Ozone forming chemical	Amount of Release
Hydrocarbon	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	YES	2,814.0 pounds
Hydrogen Sulfide	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	NO	2,000.0 pounds
Sulfur Dioxide	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	YES	NO	241.0 pounds
Nitric Oxide	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	YES	NO	11.0 pounds
Nitrogen Dioxide	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	YES	YES	2.0 pounds
Benzene	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	YES
Butene	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	YES	2.0 pounds
Propylene	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	YES	1.0 pounds
Hydrogen	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	NO	3,408.0 pounds
Ammonia	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	NO	134.0 pounds
Methane	2h 31m	safety valve release/ FLARE-Flare 17,23	YES	NO	YES	3,871.0 pounds
Ethane	2h 31m	safety valve release/ FLARE-Flare 17,23	NO	NO	YES	1,261.0 pounds

Accident Classified As:

Cause of Problem: Process Upset

process upset/under investigation

Discharge Preventable - No

Notes/Remedial Actions

In response to the suspected exchanger tube leak, the unit was shut down per appropriate procedures. Safety valve inlet line was cleaned and replaced.