Skip to main content
Clean Hydrogen Partnership

Event

Event ID
487
Quality
Description
A compressed hydrogen trailer released accidentally hydrogen which ignited producing a hissing 60 jet flame.
It triggered the evacuation of a one-mile stretch. It was estimated that the tanker burned off about 32,000 cubic feet of hydrogen (ca. 75 kg) over a 2.5-hour period before the flame was extinguished.
The tanker contained about 100,000 cubic feet (ca. 230 kg) in 10 separate tubes. Firefighters climbed on the tanker truck during the incident to shut off the other nine tubes so their contents would not burn off as well.
Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Fire (No additional details provided)
Macro-region
North America
Country
United States
Date
Main component involved?
Valve (Generic)
How was it involved?
Rupture & Formation Of A Flammable H2-Air Mixture
Initiating cause
Unknown
Root causes
Unknown (No additional details provided)

Facility

Application
Hydrogen Transport And Distribution
Sub-application
CGH2 tube trailer
Hydrogen supply chain stage
Hydrogen Transport (No additional details provided)
All components affected
Tanker containing 100,000 cubic feet (ca. 230 kg) in 10 separate tube
Location type
Unknown
Operational condition
Pre-event occurrences
Unknown

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Post-event summary
1-mile radius evacuation
32,000 cubic feet (75 kg) hydrogen lost

Event Nature

Release type
gas
Involved substances (% vol)
H2 100%
Release duration
9000
Released amount
75
Presumed ignition source
Not reported
Flame type
Jet flame
Flame length (m)
20

References

Reference & weblink

JRC assessment