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Shell Chemical East (26336), Norco

Releases of Butane

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


Cause: On May 23, 2014, Motiva's DU-5 unit unexpectedly had the relief valve on their Debutanizer Accumulator, part of the Debutanizer Overhead System, relieve to Shell Chemical's Utilities East Elevated Flare (FE-501). The relief valve lifted as a result of an accumulation of hydrocarbons in the Debutanizer Overhead System.

Followup: Yes

Notes: Unit pressure and feed levels were safely diminished to conform to standards. 6/6/14 report states that no reportable quantities were exceeded.