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Clean Hydrogen Partnership

Fire from a hydrogen pipe in a chemical plant

Event

Event ID
854
Quality
Description
Two employees were performing works on hydrogen piping (H2) in the chlorate production unit of a chemical plant when an ignited leak of H2 occurred.
The operator initiated the emergency plan and stopped the workshop activity while the operational team managed the leak in a short time (a couple of minutes).
There was no victim, no damage to the environment.
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
France
Date
Root causes
Unknown (No additional details provided)
Root CAUSE analysis
It is logic to assume that the INITIATING CAUSE was works performed on the hydrogen piping.
Nothing can be said on the ROOT CAUSE.

Facility

Application
Chemical Industry
Sub-application
Chlorate production
Hydrogen supply chain stage
All components affected
hydrogen piping
Location type
Open
Location description
Industrial Area
Operational condition
Pre-event occurrences
Works were ongoing on the hydrogen pipeline

Description of the facility/unit/process/substances
DESCRIPTION OF THE PROCESS
Sodium chlorate is an inorganic compound with the chemical formula NaClO3.
Sodium chlorate is produced industrially by electrolysis of concentrated sodium chloride solutions:
NaCl + 3 H2O → NaClO3 + 3 H2
Sodium chlorate is used as a non-selective herbicide.

Emergency & Consequences

Number of injured persons
0
Number of fatalities
0
Post-event summary
There was no victim, no damage to the environment.
Official legal action
A press release was distributed.

Event Nature

Release type
gas
Involved substances (% vol)
H2 100%
Presumed ignition source
Not reported

References

Reference & weblink

ARIA data base <br />
event no. 40267

JRC assessment