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Phillips 66 (2418), Belle Chasse

LDEQ Accident Report

Accident #97401
State Police #07-2169
Accident Date2007-06-26
Report Date 2007-07-02
Follow-up Date 2007-07-13
Follow-up: Yes

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Sulfur Dioxide15 m308F-D-1 Low Pressure FlareNOYESNO1,136.0 pounds
Hydrogen Sulfide15 m308F-D-1 Low Pressure FlareNONONO11.0 pounds

Accident Classified As:

Cause of Problem: Equipment Failure

The Delyaed Coking Unit compressor 891 K-1 tripped offline due to high level in the suction drum, 891-V-15. Liquid from the DCU combination tower overhead drum, 891-V-12, carried over to V-15 due to plugged strainers on the V-12 on the water boot pumps and hydrocarbon pumps or some other flow restriction. The compressors suction stream is automatically diverted to the Low Pressure Flare during and emergency shutdown of the compressor.

Discharge Preventable - No

Flow restriction that caused the accident was unanticipated.

Notes/Remedial Actions

Operators tried to mitigate the accident by cleaning the strainers and tried to draw liquid from V-15 to the flare drums. Attempts were unsuccessful and the K-1 compressor still tripped. Compressor was purged of liquid and restarted. ConocoPhillips claims "no offsite impact" from fenceline monitoring.