Event
- Event ID
- 89
- Quality
- Description
A leak occurred on a valve of a high pressure hydrogen storage tank, ina refinery. No explosion or fire occurred. The storage cylinder had to be depressurised from 140 bars to 0.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- leak no ignition
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- valve (generic)
- Failure mode
- leak, no ignition
- Initiating cause
- unknown
- Root causes
- Unknown
- Date entry in HIAD
- 28/02/2009
Facility
- Application
- Petrochemical industry
- Sub-application
- Unspecified refinery process
- Hydrogen supply chain stage
- All components affected
tank
- Location type
- Open
- Location
- industrial area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Post-event summary
No damage to property as the relief pipe was installed in accordance with internal standards. Also, hydrogen combustion occurred outisde the vent stack, no naffecting any component.
- Emergency action
The police stopped circulation on the roads around the site, till the intervention of the site crews assisted by the fire brigades depressurised the tank. An evacuation was not necessary .
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- ARIA
- Reference & weblink
Event no. 32936 of the French database ARIA
https://www.aria.developpement-durable.gouv.fr/accident/31936/
(accessed December 2020)
