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Alon Refining (3116), Krotz Springs

LDEQ Accident Report

Accident #151752
State Police #13-04698
Accident Date2013-10-21
Report Date 2013-10-28
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 Dioxide5 h at above RQ limitFCCU FlareNOYESNO1,012.0 pounds

Accident Classified As: Reportable Quantity

Cause of Problem: Process Upset

Hydrocarbon carryover from the Amine Unit to the Ammonium Thiosulfate Unit (ATS) cause the ATS incinerators to reach an unsafe operational temperature. Therefore, to stabilize the ATS incinerators and downstream equipment, the Amine Reflux drum was drained to the flare causing an increase in Sulfur Dioxide emissions from the flare.

Discharge Preventable - No Information Given

Notes/Remedial Actions

Once the ATS unit was stable, the Amine Reflux drum drain was closed to the flare.