PES estimated that 5,239 pounds of hydrofluoric acid released from piping and equipment during the incident. It estimated that 1,968 pounds of the released hydrofluoric acid [38%] was contained by water spray within the unit and was processed in the refinery wastewater treatment plant, and that 3,271 pounds of hydrofluoric acid [63%] released to the atmosphere and was not contained by water spray.
Factual Update — October 16, 2019 — Incident Summary
On June 21, 2019, a major process loss of containment caused a fire and explosions at the Philadelphia Energy Solutions Refining and Marketing LLC (PES) Refinery in Philadelphia, Pennsylvania.
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Fire and Explosions at Philadelphia Energy Solutions Refinery Hydrofluoric Acid Alkylation Unit
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