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Phillips 66 (2418), Belle Chasse

Releases of Isobutane

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release
101672

2007-12-13

412-A-FF
Cause: The Pressure Safety Valve relieved to the atmosphere for approximately 15 minutes after being installed. THe PSV is designed to open enough as requeired to relieve in an overpressure situation. It has a set pressure for Tank 503 set to approx. 83 psig. During this event it was noted that pressure in Tank 503 remained at approx. 30 psig and the set pressure for the PSV was never reached. There is no explanation given for why this might have occurred.

Followup: Yes

Notes: The adjacent PSV 100 PSV 15B was placed into service as PSV 15A was blocked in and isolated to minimize the release.
15,042.0 pounds
101672

2007-12-13

412-A-FF
Cause: The Pressure Safety Valve relieved to the atmosphere for approximately 15 minutes after being installed. THe PSV is designed to open enough as requeired to relieve in an overpressure situation. It has a set pressure for Tank 503 set to approx. 83 psig. During this event it was noted that pressure in Tank 503 remained at approx. 30 psig and the set pressure for the PSV was never reached. There is no explanation given for why this might have occurred.

Followup: Yes

Notes: The adjacent PSV 100 PSV 15B was placed into service as PSV 15A was blocked in and isolated to minimize the release.
No LDEQ Reported

2008-05-17
FLARE-PSV-84 relief valve on Reactor (491-V-49)
Cause: Valve failure cause by a power surge from lightening.

Followup: Yes

Notes: Incident due to a valve failure caused by a power surge from lightning. Motor control and trim on valve fixed.
8.0 pounds