"The fire occurred four months after the explosion in the refinery's isomerization (ISOM) unit that killed 15 workers and injured 180. The July 28 fire caused $30 million in property damage. Weeks later, this accident was also cited in the CSB's urgent recommendation for BP to examine its safety culture at all its North American refineries.
The fire occurred at about 6 p.m. on the evening of July 28 when a piping elbow failed catastrophically and without warning, releasing highly flammable hydrogen gas at high temperature and pressure which immediately ignited. A huge fireball erupted and a fire burned for approximately two hours."
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