Event
- Event ID
- 1140
- Quality
- Description
At a gas manufacturing plant, one pallet consisting of nine (9) cylinders fell to the ground. The discharge valve of one cylinder (261 cubic feet of hydrogen) was damaged and the entire hydrogen content was released to the atmosphere. The Incident occurred in open air, in a well ventilated area. Hydrogen was dispersed into the air without ignition , and no injuries or exposures were reported. The Local fire department was contacted to assess the site, and cleared incident without action.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- leak no ignition
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- valve (generic)
- Failure mode
- rupture, no ignition
- Initiating cause
- impact, rollover, crash
- Root causes
- Unknown
- Date entry in HIAD
- 25/10/2024
Facility
- Application
- Chemical industry
- Sub-application
- industrial gases production
- Hydrogen supply chain stage
- All components affected
Cylinder Valve
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Location type
- Open
- Location
- industrial area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Currency
- US$
- Property loss (onsite)
- 0
- Post-event summary
no consequence
- Emergency action
The Local fire department was contacted to assess the site, and cleared incident without action.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Released amount (kg)
- 24
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- PHMSA
- Reference & weblink
Incident E2011120137 of the US Pipeline and Hazardous Materials Safety Administration PHMSA:
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%…
(accessed September 2024)
