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 (No additional details provided)
- Macro-region
- Europe
- Country
- France
- Date
- Main component involved?
- Flange
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Initiating cause
- Material Degradation (Generic)
- Root causes
- Unknown (No additional details provided)
Facility
- Application
- Chemical Industry
- Sub-application
- Ammonia production
- Hydrogen supply chain stage
- All components affected
- pipe flange in an ammonia synthesis reactor
- Location type
- Open
- Location description
- Industrial Area
- Operational condition
- Unknown (No additional details provided)
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- Not reported
References
- Reference & weblink
ARIA data base event no. 1903<br />
https://www.aria.developpement-durable.gouv.fr/accident/1903/<br />
(accessed November 2025)Rigas F., Amyotte P., Hydrogen safety, Green chemistry and chemical engineering, CRC Press, Taylor & Frances Group; 2012. ISBN-13: 978-1439862315
JRC assessment
- Sources categories
- ARIA
