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Clean Hydrogen Partnership

Leakage and ignition of hydrocarbon mixture from a pipeline

Event

Event ID
1048
Quality
Description

A mixture of mainly carbon monoxide and hydrogen was released from a pipe transferring process gases in a not further specified unit of a chemical plant. The released gases formed a flammable mixture which ignited possibly due to static electricity and resulting in 22 deaths and 8 injuries.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
Asia
Country
China
Date
Component involved
pipe (generic)
Failure mode
rupture & ignition
Initiating cause
unknown
Root causes
Unknown
Date entry in HIAD
01/07/2024

Facility

Application
Chemical industry
Sub-application
unspecified chemical process
Hydrogen supply chain stage
All components affected

process gases feed line

Location type
Open
Location
industrial area
Operational condition

Emergency & Consequences

Number of fatalities
22
Number of injured persons
8
Post-event summary

22 deaths and 8 injuries

In-depth data

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

References

Sources categories
News
Reference & weblink

Government site reporting incidents:
https://www.mem.gov.cn/fw/jsxx/202106/t20210630_390326.shtml
(last retrieved 20.02.2023)

B.Wang et al., Hydrogen related accidents and lesson learned from events reported in the
in east continental Asia,#2023, ICHS-2023