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Clean Hydrogen Partnership

Gas cylinders pellet fall in from truck in a plastics production plant

Event

Event ID
794
Quality
Description
In a plastics production plant, a pallet containing 7 cylinders of nitrogen and 1 cylinder of hydrogen fell from a truck traveling in a logistics zone.
The driver stopped the vehicle, cut off the engine and noticed a leak on the hydrogen cylinder; he warned his superintendent who alerted the firefighters, established a safety perimeter and interrupted any work with hot sources.

The firefighters stopped the leak by closing the cylinder valve and put the basket back on the truck which was then unloaded at the place originally planned.
Event Initiating system
Classification of the physical effects
Unignited Hydrogen Release
Nature of the consequences
Leak No Ignition (No additional details provided)
Macro-region
Europe
Country
France
Date
Main component involved?
Cgh2 Cylinder(S)
How was it involved?
Leak & Formation Of A Flammable H2-Air Mixture
Initiating cause
Impact, Rollover, Crash
Root causes
Root CAUSE analysis
The INITIATING cause was the fall of the load from the truck.

The analysis of he incident by the plant operator brought to these conclusions:
-the gas delivery rate was unusual high, and the gas cylinder pallets suitable for trolley transport were not available;
-the truck used as a replacement was not designed for the purpose and the load was not well secured;
-the acceleration of the driver at start-up would have resulted in the fall of the basket.
Therefore, the ROOT CAUSE was the decision to use inappropriate system to address increased frequency of the transport operations.

Facility

Application
Chemical Industry
Sub-application
Plastic production
Hydrogen supply chain stage
Hydrogen Transport (No additional details provided)
All components affected
Trolley, gas cylinders pallet
Location type
Open
Location description
Industrial Area
Operational condition

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0

Lesson Learnt

Lesson Learnt

This is a typical case of lack of safety culture, revealed by the wrong decision under delivery time pressure.
Corrective Measures

The operator prohibited the transport of baskets of gas cylinders other than by the dedicated trolleys and investigated a better way to secure the load (installation of side panels, anti-slip devices).

Event Nature

Release type
gas
Involved substances (% vol)
H2 100%
Presumed ignition source
No ignition

References

Reference & weblink

ARIA data base <br />
event no. 45096

JRC assessment