Event
- Event ID
- 245
- Quality
- Description
A tank of liquefied hydrogen felt down in a chemical plant. The tank, containing 100 m³ of liquid hydrogen, was installed on a concrete plate, which failed. The hydrogen started leaking from the valve at the bottom of the tank. The operator declared the state of emergency and installed a safety perimeter. The emergency responders used a resin to close the leak, after which they defrosted and closed the valve.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- release, no ignition
- Macro-region
- Europe
- Country
- France
- Date
- Component involved
- LH2 components
- Failure mode
- leak
- Initiating cause
- impact, rollover, crash
- Root causes
- Date entry in HIAD
- 01/01/2022
Facility
- Application
- Chemical industry
- Sub-application
- unspecified chemical process
- Hydrogen supply chain stage
- All components affected
LH2 storage tank
- Process temperature range [C]
- cryogenic temperature (below -50°C)
- Process pressure range [MPa]
- low to medium pressure (below 2 MPa)
- Location type
- Confined
- Location
- populated area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Emergency action
The Internal Operation Plan was launched. A resin was used to stop the leak and the valve was de-frozen and closed. The Internal Operation Plan was cancelled after 6h30.
In-depth data
- Release type
- Liquid
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- ARIA
- Reference & weblink
Event description in the French database ARIA https://www.aria.developpement-durable.gouv.fr/accident/10969/ (accessed October 2020)
