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Clean Hydrogen Partnership

Fire and explosion at the hydro-desulphurisation unit of a refinery

Event

Event ID
1005
Quality
Description

The explosion and fire happened in a diesel hydro-treatment unit used to desulphurise raw diesel be means of hydrogen.

The facility was expected to begin full commercial operations later in 2020.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
Asia
Country
Malaysia
Date
Component involved
unknown
Failure mode
rupture & ignition
Initiating cause
unknown
Root causes
Unknown
Date entry in HIAD
01/01/2019

Facility

Application
Petrochemical industry
Sub-application
Hydrodesulphurisation process
Hydrogen supply chain stage
All components affected

unknown

Process pressure range [MPa]
unknown
Location type
Open
Location
industrial area
Operational condition
Pre-event occurrences

The plant had not yet reached commercial oepration.

Emergency & Consequences

Number of fatalities
5
Number of injured persons
2
Post-event summary

The fire caused operations at the refinery to be stalled for almost two years and resumed in 2022.

Lesson Learnt

Corrective Measures

The bus company requested the valve manufacturer to investigate the solenoid valve and to issue a report.

In-depth data

Release type
gas mixture
Involved substances (% vol)
H2,
diesel
Probable IGNITION SOURCE
Explosion type

References

Sources categories
FireWorld
Reference & weblink