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Calumet Lubricants 8 (1214), Shreveport

LDEQ Accident Report

Accident #139058
PDF AvailablePDF
State Police #12-02425
Accident Date2012-04-22
Report Date 2012-04-24
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
Sulfur Dioxide11 hSRU UnitNOYESNO1,696.0 pounds
Hydrogen Sulfide11 hSRU UnitNONONOBRQ

Accident Classified As: Reportable Quantity

Cause of Problem: Power Failure

On 4/22/12 both Sulfur Recovery Units (SRUs) tripped and sent acid gas to flare gas recovery system. This increased the hydrogen sulfide concentration of the fuel gas and caused an exceedance of the 500 lb RQ limit for sulfur dioxide. Emission point v-f .

Discharge Preventable - No

Unknown equipment malfunction that caused units to trip. Cause being investigated.

Notes/Remedial Actions

Attempt to restart SRUs and reduce DHT/LOHT charge rate. Specific remedial actions and plans to prevent recurrence are to be determined. 2 copies of written report were included in this document. Written report says that the release started on 4/23/12 at 12 pm and ended on 4/23/12 at 11 pm. The duration says 11 hours. Then it says that the event occurred on 4/22/12. They reported the release on 4/23/12. A memorandum is included in this document dated 4/25/12. It states that the permit levels for hydrogen sulfide gas released through a flare with exceeded several times during this incident. There were no complaints and no follow ups related to this incident.