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ExxonMobil Chemical Plant (286), Baton Rouge

LDEQ Accident Report

Accident #146614
State Police #13-00617
Accident Date2013-02-10
Report Date 2013-02-14
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
Ethylene45Mconvention tube on C furnaceNONOYES6.7 pounds
Propylene45Mconvention tube on C furnaceNONOYES0.2 pounds
Butadiene45Mconvention tube on C furnaceNONOYES0.2 pounds
Benzene45Mconvention tube on C furnaceNONOYES0.2 pounds
Hydrogen45Mconvention tube on C furnaceNONONOBRQ
Methane45Mconvention tube on C furnaceYESNOYESBRQ
Ethane45Mconvention tube on C furnaceNONOYESBRQ

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Piping or Tubing

On February 10, 2013, a release of uncombusted ethylene (6.7 pounds), propylene (0.2 pounds), butadiene (0.2 pounds), butadiene (0.2 pounds), benzene (0.2 pounds), and other gases in smaller amounts (hydrogen, methane, and ethane). The incident began at 1000 hours and ended at 1045 hours. The release was caused due to a leaking tube in a steam cracking furnace (furnace C), which caused feed to enter the furnace. It was stated that most of the gases combusted inside the furnace. Some did not combust inside. The feed was stopped and the leaking tube later filled with water to prevent feed from entering that tube.

Discharge Preventable - No Information Given

Notes/Remedial Actions

The leaking tube was filled with water to prevent feed from entering tube. The tube was reported to stay in this condiction until a more feasible time to replace or repair the tube and would not affect the operation of the furnace.