Event
- Event ID
- 201
- Quality
- Description
- Due to unsealing of flange connection in a heat exchanger, hydrogen leaked and ignited. At 20 m height, under pressure of 0,25 MPa.
- 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
- Poland
- Date
- Main component involved?
- Flange
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Root causes
- Unknown (No additional details provided)
- Root CAUSE analysis
- The INITIATING CAUSE was the loss of confinement capacity of a flange connection.
ROOT CAUSE unknown.
Facility
- Application
- Petrochemical Industry
- Sub-application
- Generic refinery process
- Hydrogen supply chain stage
- All components affected
- flange connection at heat exchanger.
- Location type
- Semiconfined
- Location description
- Industrial Area
- Operational condition
- Unknown (No additional details provided)
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Emergency action
- The plant and local firebrigades intervened, with a total of 28 men. They monitored air concentration of after-combustion gases
During the mergency, the operator ensured the closing of all gas valves nad monitored reactor activities to prevent temperature changes of catalisator.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Actual pressure (MPa)
- 0.25
- Design pressure (MPa)
- 0.25
- Presumed ignition source
- Not reported
References
- Reference & weblink
source lost
JRC assessment
- Sources categories
- Unknown
