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Phillips 66 (2418), Belle Chasse

Releases of Butane

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release
No LDEQ Reported

Saturate Gas Unit (7991-PSV-18)
Cause: Pressure control valve BPC-244 malfunctioned gave a false signal of being open when actually in the closed position. This caused the pressure relief valve 7991-PSV-18 to lift for 5 minutes.

Followup: Yes

Notes: Assured they would operate this at a Òlow pressureÓ pending findings of the investigation.
91.0 pounds

Saturated Gas Plant 7991-V-2
Cause: Failure of the Process Safety Valve

Followup: No

Notes: Could not have been predicted, preventative safety measures were in place already.
3,902.0 pounds
No LDEQ Reported

Cause: The 293-KN-1 compressor tripped due to a false high level alarm from the suction drum 293-V-5. The suction drum had had been drained by the unit operator but the local level alarm continued to show a high level signal to the compressor. Thie high level alarm indicator caused the compressor to trip unexpectedly. The compressor's turbine could not be reset immediately resulting in 293-PSV-4A lifting to the atmosphere for a short duration.

Followup: yes

Notes: None
340.0 pounds
No LDEQ Reported

Pressure Safety Valve (PSV)-850 on sphere 100-T-500
Cause: Cracked pipe leading to Pressure Safety valve

Followup: No

Notes: Cracked pipe replaced. Exceeded hourly permit for VOC emissions. Air monitoring performed by refinery personnel near leak and the nearest fenceline. No impact found by refinery personel. Emissions below reportable quanitity.
205.0 pounds

1391-FF (1391-PSV-009)
Cause: There was an unexpected increase in the Depantanizer tower's overhead pressure causing PSV-009 to relieve. This was the result of the shutdown of the reboiler due to high burner pressure.

Followup: No

Notes: The reboiler (1391-H-4) temperature was lowered which lowered the pressure in the Depantanizer Tower allowing 1391-PSV-009 to reseat. There is no LDEQ report and no SPOC report attached to this file. 19,570 pounds released
2,395.8 pounds