Event
- Event ID
- 825
- Quality
- Description
Hydrogen leakage occurred on a pipe flange in an ammonia synthesis unit. A fire started immediately, which was taken under a control before the arrival of firefighters.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Europe
- Country
- France
- Date
- Component involved
- flange (generic)
- Failure mode
- rupture & ignition
- Initiating cause
- material degradation (generic)
- Root causes
- Unknown
- Date entry in HIAD
- 01/01/2020
Facility
- Application
- Chemical industry
- Sub-application
- Ammonia production
- Hydrogen supply chain stage
- All components affected
pipe flange in an ammonia synthesis reactor
- Process temperature range [C]
- High temperature (100°C to 500°C)
- Location type
- Open
- Location
- industrial area
- Operational condition
- UNKNOWN
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Emergency action
the fire was taken under a control before the arrival of firefighters.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- ARIA
- Reference & weblink
ARIA data base event no. 1903
https://www.aria.developpement-durable.gouv.fr/accident/1903/
(accessed November 2025)Rigas F., Amyotte P., Hydrogen safety, Green chemistry and chemical engineering, CRC Press, Taylor & Frances Group; 2012. ISBN-13: 978-1439862315
