Event
- Event ID
- 583
- Quality
- Description
The bonnet of a 2-inch valve on a hydrogen quench line of a lube oil hydrotreater began to leak.
12 minutes later ignition occurred with fire engulfing the upper portion of the unit.
The operative conditions were 3000 psi and 730 degrees F (ca. 200 bar and ca. 390 C).
The gas could not be blocked in and the fire burned for over 2 days.- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- North America
- Country
- Canada
- Date
- Component involved
- valve (generic)
- Failure mode
- leak & ignition
- Initiating cause
- unknown
- Root causes
- Unknown
- Date entry in HIAD
- 01/01/2020
Facility
- Application
- Petrochemical industry
- Sub-application
- Hydrodesulphurisation process
- Hydrogen supply chain stage
- All components affected
Valve of a hydrogen quench line, lube oil hydrotreater
- Process temperature range [C]
- High temperature (100°C to 500°C)
- Process pressure range [MPa]
- medium to high pressure (10 to 50 MPa)
- Location type
- Unknown
- Location
- industrial area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Emergency action
The gas could not be blocked in and the fire burned for over 2 days.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 390
- Release pressure [MPa]
- 20
- Probable IGNITION SOURCE
References
- Sources categories
- Unknown
- Reference & weblink
Original source lost
