| Home | Search | Emissions | Pollutants | About the Database |
ExxonMobil Chemical Plant (286), Baton Rouge
LDEQ Accident Report
| Accident # | 146061 |
| State Police # | 13-00221 |
| Accident Date | 2013-01-15 |
| Report Date | 2013-01-22 |
| Follow-up Date | 0000-00-00 |
| Follow-up: |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Propylene | 26m | NO | NO | YES | 35,590.0 pounds | |
| Flammable Vapor | 26m | NO | NO | YES | 37,820.0 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Seal or Gasket
The Ethylene Purification Unit experienced an unanticipated atmospheric safety valve lifting prior to reaching its set point for approximately 26 minutes. Unanticipated safety valve was due to a broken O-ring causing material to be released into atmosphere.
Discharge Preventable - No
This event was due to an unanticipated safety valve lifting. The safety valve lifted before reaching the set point.
Notes/Remedial Actions
The safety valve was immediately blocked upon discovery. To return the unit to normal operating conditions, the DeEthanizer overhead and splitter bottoms were flared. To prevent recurrence, the preventative maintenance frequency of the atmospheric safety valve will be increased, and ExxonMobil engineers are evaluating potential upgraded material type for the O-ring.
Connect With Us: