Event
- Event ID
- 849
- Quality
- Description
- In the collective treatment plant of a chemical platform, the truck tank of 25 m³ containing hydrochloric acid (HCl) rose in pressure at 11 am; leakage of acid solution and gas evolution occurred in the upper part of the tank.
The emergency plan of the site was triggered. The rescue confined 5 employees and switched off the electrical power on the site. The police interrupted the traffic. Reliefs opened the manhole of the tank to reduce the internal pressure. At 6pm, they measure 124, 923 and 230 ppm of HCl around the 3 manholes and a hydrogen (H2) level below the LEL. Staff containment was lifted. A specialized company emptied the tank until 9:30pm.
According to the IC inspection, the incident was due to an incompatibility between HCl and the material constituting the tank (INOX), the acid attack leading to the formation of H2. - 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
- Root causes
- Root CAUSE analysis
- an incompatibility between HCl and the material constituting the tank (INOX), the acid attack leading to the formation of H2.
Facility
- Application
- Chemical Industry
- Sub-application
- Storage of hydrochloric acid (HCl)
- Hydrogen supply chain stage
- All components affected
- truck tank of 25 m³ with HCl
- Location type
- Open
- Location description
- Industrial Area
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
Event Nature
- Release type
- gas mixture
- Involved substances (% vol)
- H2,
HCl - Presumed ignition source
- No ignition
References
- Reference & weblink
ARIA data base <br />
event no. 36762
JRC assessment
- Sources categories
- ARIA
