Regions and Countries: Japan

Hydrogen leaked from the hydrogen compressor and ignited. The compressor was part of the desulfurization unit of a refinery. It had just been delivered and was under commissioning testing. The fire…

While making preparation for operation of a compressor supplying hydrogen to a heavy oil desulfurization unit, an operator got injured as the checking cover of a crank room came off, emitting a hot…

The event occurred in a desulfurisation unit for heavy oil (hydro-cracking, Isomax process). The hydrogen release took place from one of the heat exchanges, after the restart of the unit. The reason…

Leakage of gas from blow-off pipe for depressurization while filling hydrogen in cylinder.

An incident occurred on a compressor at a refinery Fluid Catalytic Cracker Unit (FCCU) plant involving hydrogen. Source of ignition was hot surface.

A pipe rupture occurred in a steam condensing line of a residual heat removal system at the Hamaoka Nuclear Power Station Unit-1 (Hamaoka-1) during operation at rated power. The reactor was manually…

The nuclear plant was a boiling-water reactor with an output of 0.54 million kW. The component affected was a steam piping (inside diameter: 15 cm; thickness: 1.1 cm) of a heat exchanger used for…

In a chemical plant , a process gas leak (4% ammonia and 88% hydrogen) occurs during a purge operation. The cloud of gas ignites and explodes. An employee is killed.

The event occurred at the flanges on the outlet of a desulfurization reactor, which was working under about 300 degrees C The flanges and bolts were cooled down by a large amount of rainwater which…

Fire due to hydrogen gas leakage.

Gas leakage from a hydrogen cylinders pallet in transit.

Static electricity ignited hydrogen in a rising advertising balloon.

Syngas explosion at a university laboratoryThe university lab affected was investigating generation of hydrogen and methane from biomass (wooden chips). The experimental furnace was a concrete…

Fire of drums containing lithium metal powder: Spontaneous combustion took place at drums containing lithium metal powder which were charged with argon gas for experiments. While lithium metal powder…

Fire following vapour explosion at a plant making titanium sponge due to design errors: A vapour explosion, followed by a fire, occurred at a drier in a plant making titanium sponge. When titanium…

The incident occurred during the verification operation of a new high pressure hydrogen generator. The electrolysis cell burned down, the pipes of the oxygen circuit burst and the peripheral…