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Clean Hydrogen Partnership

Fire in a basic chemicals production site

Event

Event ID
1007
Quality
Description

This incident occurred in a unit processing vegetable oils and fats.
an explosion occurred in a hydrogenation facility, specifically where hydrogen is processed with a very high-pressure (400 bar). Accidental mixing with oxygen caused an explosion which further ignited oil, fat, and alcohol. The volatile mixture produced the acrid black smoke seen and felt in the surroundings.
A fire-brigade from the involved town was at the scene in a few minutes and was assisted by the Fire Department of a bigger city. Approximately one hour later the fire was extinguished.
An employee of a contractor was injured when he fell from a scaffold, and two truck drivers were examined as outpatients.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
Europe
Country
Germany
Date
Component involved
reactor / oven / furnace / test chamber
Failure mode
rupture & ignition
Initiating cause
unknown
Root CAUSE analysis

The results of the internal investigation is not publicly available. Both the district government and the company agreed that it was plausible to identify in a material failure the INITIATING cause of the incident.
Therefore, only the INITIATING cause is known, and not even in details.

Root causes
Unknown
Date entry in HIAD
12/11/2024

Facility

Application
Chemical industry
Sub-application
Oils, fats production processes
Hydrogen supply chain stage
All components affected

pipe

Process pressure range [MPa]
medium to high pressure (10 to 50 MPa)
Location type
Semiconfined
Location
populated area
Operational condition

Emergency & Consequences

Number of fatalities
0
Number of injured persons
3
Post-event summary

An employee of a contractor was injured when he fell from a scaffold, and two truck drivers were examined as outpatients.
According to the company, no poisonous substances leaked, and the strong rubber smell was caused by burning cable insulation.

Emergency action

Fire-brigades from two different sites intervened, in one hour the fire was under control.

In-depth data

Release type
gas
Involved substances (% vol)
H2 100%
Release pressure [MPa]
40
Probable IGNITION SOURCE
Explosion type

References

Sources categories
ZEMA
Reference & weblink

Event from German database ZEMA
https://www.infosis.uba.de/index.php/de/binaries/asset/zema_ereignis/16…
(accessed December 2024)

News of Westdeutsche Zeitung on 14 and 17 April 2011
https://www.wz.de/app/consent/?ref=https%3A%2F%2Fwww.wz.de%2Fnrw%2Fdues…
(accessed Aug 2023)

News of Westdeutsche Zeitung on 14 and 17 April 2011
https://www.wz.de/app/consent/?ref=https%3A%2F%2Fwww.wz.de%2Fnrw%2Fdues…
(accessed Aug 2023)

News of Rheinishce Poston 10 April 2011
https://rp-online.de/nrw/staedte/duesseldorf/cognis-produktion-wieder-g…
(accessed Aug 2023)