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ExxonMobil Refinery (2638), Baton Rouge
LDEQ Accident Report
| Accident # | 91379 |
| State Police # | 06-06432 |
| Accident Date | 2006-10-16 |
| Report Date | 2006-10-19 |
| 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 |
| Nitrogen Oxide | 26m | FLARE - #17 and #19 Flares | NO | YES | YES | 10.0 pounds |
| Hydrocarbon | 26m | FLARE - #17 and #19 Flares | NO | NO | YES | 61.0 pounds |
| Hydrogen Sulfide | 26m | FLARE - #17 and #19 Flares | NO | NO | NO | 1.0 pounds |
| Sulfur Dioxide | 26m | FLARE - #17 and #19 Flares | NO | YES | NO | 228.0 pounds |
| Nitrogen Dioxide | 26m | FLARE - #17 and #19 Flares | NO | YES | YES | 2.0 pounds |
| Benzene | 26m | FLARE - #17 and #19 Flares | NO | NO | YES | |
| Butene | 26m | FLARE - #17 and #19 Flares | NO | NO | YES | 2.0 pounds |
| Propylene | 26m | FLARE - #17 and #19 Flares | NO | NO | YES | 1.0 pounds |
Accident Classified As:
Cause of Problem: Under Investigation
the cause of the flaring was high pressure in the refinery gas collection system due to a high volume of vent gas from the other refinery units. The source of the high vent gas rate was unable to be determined.
Discharge Preventable - No
Notes/Remedial Actions
This incident was not preventable because the remedial actions were initiated before the flaring incident. These actions should have been sufficient to reduce vent gas rates. Two primary actions were initiated to reduce refinery vent gas rates. First, the compressor at the Hydrocracker was lined with the Refinery Gas Compression Unit Compressors to assist with processing refinery vent gas. Secondly, the crude feed rate to Pipestill #10 was decreased. Remedial Actions -an invgation is ongoing and the appropriate follow-up actions will be completed. The reportable quantity for nitrogen oxide has been exceeded.
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