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 (No additional details provided)
- Macro-region
- North America
- Country
- United States
- Date
- Main component involved?
- Valve (Generic)
- How was it involved?
- Leak
- Initiating cause
- Unknown
- Root causes
- Unknown (No additional details provided)
Facility
- Application
- Petrochemical Industry
- Sub-application
- Generic refinery process
- Hydrogen supply chain stage
- Hydrogen Storage (No additional details provided)
- All components affected
- tank
- Location type
- Open
- Location description
- Industrial Area
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 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
- It was decided to perform a manual vent of the hydrogen, to bring back the pressure to 1 psig (11 bara), before allowing the cranes to upright the trailer.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Actual pressure (MPa)
- 14
- Presumed ignition source
- No ignition
References
- Reference & weblink
Event no. 32936 of the French database ARIA <br />
https://www.aria.developpement-durable.gouv.fr/accident/31936/<br />
(accessed December 2020)
JRC assessment
- Sources categories
- ARIA
