HIAD Facility - Location Type: Open

Excavation work was performed nearby a buried pipeline of gaseous hydrogen. The excavation machine hit the pipeline causing an under-expanded jet fire. No injuries. The excavation machine was burnt…

The truck was delivering hydrogen to a steel products plant and contained from 1500 to 2000 gallons of liquid hydrogen (approximately 7000 to 9000 l). The hydrogen was being pumped from the trucks…

A road transportation incident. A road tanker of hydrogen overturned and caught fire.

the fire was detected by an employee during the normal inspection tour, . It was caused by the ignition of a leak of process gas (hydrogen, methane and water vapour) from the reforming furnaces.…

First an explosion and then a fire occurred on the condensate piping of an chlorine electrolysis plant (SEVESO upper tiers). Flames escape from the end of the pipe and spill into a 75 m open sky tank…

In an chlorine production plant, vented chlorine and hydrogen, auto ignited when the hydrogen concentration was allowed to exceed 5% and the mixture mixed with air.

The event occurred in an alkylation reactor. Due to the rupture of a pipe (probably due to material failure), a power failure took place and the plant was automatically put in hot-stand-by mode. This…

Follow a leak in a seal of a heat exchanger (metal-covered asbestos) a fire occurred in a reforming process. The hydrogen-rich mixture caused spontaneous inflammation. The fire lasted 30 minutes. The…

The accident happened in a refinery unit, constructed ten years before. A pigtail ruptured in a steam reformer for the production of hydrogen, and caused a major fire, which destroyed most of the…

In a fertiliser plant, an ammonia synthesis unit stopped following the malfunction of an alternator (due to a thunderstorm). The safety features were operating normally, yet the synthesis gas (N2 /…

The accident occurred on the hopper fine powders from a pair of cyclones (the hopper is the bottom conical part of the cyclone collecting the powder/dust separated from gas phase). A bursting disc…

A fire broke out at a flange of a heat exchanger used in the catalytic reforming unit of a refinery. This exchanger makes it possible to heat the load of heavy oil and hydrogen by recovering the heat…

The accident originated in the isomerisation unit and propagated to the benzene saturation unit. The accident source was a mechanical rupture of one of the two compressors used to transfer hydrogen…

The event occurred on vent stack of an ammonia synthesis unit. The release of the gas was more specifically on the water purge line or the hydraulic guard of the vet stack. The process gas…

The fire occurred on the tube plate gaskets of 3 of the 4 exchangers loaded with catalytic reforming effluent. The fuel (500C and p=30 bar) was a mixture of 30% hydrocarbons and 70% hydrogen. After…

As the airship approached the docking mast, it performed a sharp turn to face into the wind, which was shifting. The engines were run at full speed astern for about a minute to slow the airship. Dust…

A fire occurred on a flange of a hydrodesulfurisation unit during start-up operations. A failure of this flange caused of the leak.

In a petrochemical plant, visual inspection detects fumes under the heat insulation of a heat exchanger operating under hydrogen pressure. The first intervention team was mobilized and the unit…

The fire developed an early morning on a hydrogen bus at a refuelling station for public transport. The fire Department was called to site responding to reports of a fire on the property. A section…

A release of hydrogen occurred during the filling of a 28 bottles rack. A worker decided to move the rack from one station to another, due to works ongoing nearby. This movement, even though the hose…