HIAD Nature of the Consequences: Explosion

The event early on a Saturday morning, when the plant was thus practically empty. Nevertheless, the chronology of the accident can be reconstructed from the testimonies of the few operators who were…

The plant was operating at 92% power when a ground fault on a land steam exhauster caused the supply breaker to a motor control centre (MCC) to trip. This supply breaker could not be reclosed. The…

The vent occurred outside a fuel cells manufacturing facility. While preparing for transfer of liquid hydrogen from tanker truck to storage tank, a release of hydrogen occurred, which vaporized into…

A hot oil line (8-inch) in the hydro-desulfurisation (HDS) unit failed due to fatigue cracking. Hot oil at 50 bar and 343C sprayed across the roadway into the hydrogen units where ignition occurred.…

[NOTE: the attribution to hydrogen formation as cause of the explosion is 'probable 'but not fully demonstrated].Two explosions in two different sprinkler systems occurred, wit the same assumed cause…

A hydrogen fuel tank release caused a fire at an AC Transit fuel station, prompting authorities to, as a precaution, evacuate several businesses and a high school and to close a number of…

Ignition of hydrogen produced by washing slag in a tank for chlorosulfonic acid.

A leak of hydrogen gas, followed by an explosion, occurred when an engine was loaded with air, oxygen, and hydrogen, and then started for a preliminary ramjet engine combustion test. The engine was…

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…

A leaking hydrogen line exploded at an oil refinery.

In a metal production company, a leak occurred on valve of a hydrogen line. A new valve was ordered. Almost one month later workers arrived on site to replace the valve. After one hour they heard…

An explosion occurred on a unit producing hydrogen for the nearby refinery.The following fire was extinguished in 10 minutes by the public service fire brigade. Two workers were lightly injured.

An explosion at a hydrogen recovery plant resulted in the injury of 10 people.

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…

Hydrogen release and explosion due to a leak in a high pressure hydrogen storage tank, during first start-up of plant.

A violent explosion occurred in a refinery's crude oil hydrodesulfurization unit. The unit's alarm is immediately triggered in the control room, the operator activates the internal emergency plan.…

The accident took place when replacing a pallet of empty hydrogen cylinders with a new full one. The pallet in service (almost empty) was not disconnected from the gas supply line. When the operator…

A hose of a hydrogen tanker parked in at a specialised company ruptured. The released hydrogen ignited and exploded, followed by a fire probably fed by the continuously leaking hydrogen. The local…

At a linear accelerator site, a hydrogen retort exploded during ignition of burn-off gas. One employee experienced hearing loss in one ear and a shoulder injury from being blown into a cabinet. A…

A hydrogen tank exploded and caught fire at a chemical plant.