Investigation Report
Motiva Enterprises Sulfuric Acid Tank Explosion — Final Investigation Report
Motiva Enterprises Sulfuric Acid Tank Explosion — Final Investigation Report
- CSB
- Investigation Report
- CorrosionExplosionLoss of containmentProcess safetyStructural and asset integrity
- Hot workInspection and maintenance
- HoseStorage tanks
- Atmospheric gas testingManagement of changeNon-destructive testingPermit to work
- Downstream and process industries
- Onshore facility
Summary
Investigation of a fatal sulphuric acid tank explosion at Delaware City refinery during catwalk repairs. The report examines corrosion, deferred inspections, inadequate carbon dioxide inerting, hot-work authorisation and changes to cutting methods. It analyses tank failure and containment limitations, compares earlier incidents, and recommends improvements to integrity management and change review.
Classifications: Corrosion; corrosion damage.
Classifications: Explosion; explosive atmospheres.
Classifications: Loss of containment; containment loss.
Classifications: Process safety; major accident hazards.
Classifications: Structural and asset integrity; asset integrity; structural integrity.
Classifications: Hot work; welding and cutting.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Hose; flexible hose.
Classifications: Storage tanks; atmospheric tanks.
Classifications: Atmospheric gas testing; gas testing; atmosphere testing.
Classifications: Management of change; MOC; change management.
Classifications: Non-destructive testing; NDT; non-destructive examination; NDE.
Classifications: Permit to work; PTW; work permit.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Onshore facility; onshore plant.