Regions and Countries: France

Hydrogen leaked from an analyser and ignited .On-site staff isolate the leak. As the leak was very quickly isolated, the amount of hydrogen released was negligible. Event no. 35501 of the French…

A detonation was heard and the hydrogen supply of the site was automatically shut down by the safety devices.The fire was caused by a hydrogen leak and led to the formation of a fireball at the end…

The fire occurred around 13:20 on three cells of the chlorine manufacturing unit. A leak of hydrogen in the electrolysis room was at the origin of the fire; the ignition of the H2 cloud caused a…

A hydrogen jet fire occurred on a 25m3 tank while transferring a catalyst to a buffer tank. The constabulary created an area of safety around the plant while the staff extinguishes the fire by…

The release occurred on a pipeline inside a steam cracking unit located between two hydrogenation units. The gaseous mixture transported through this line (2" diameter, 30 bar, 40C) was composed of…

A hydrogen leak occurs in a manufacture of steel pipes. The leak is detected and the alarm is triggered.

The leak occurred at the hydro-isomerisation unit of a refinery. Following the observation of a pressure drop between two heat exchangers, controls were carried out on site. A noise was heard, but no…

A hydrogen leak occurred in in the cooling system of electricity generation part of the in a nuclear power plant. .

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…

Hydrogen leaked and ignited on a cell in the sodium chlorate (NaClO3) workshop of a chlorinated products plant.There were no victims and no damage to the environment. On-site firefighters controlled…

A pallet containing 9 hydrogen cylinders is damaged during the operation of unloading the cylinders trailer by means of a forklift. A 2 mm wide crack, caused by the fork, is observed on a flexible.…

The truck was carrying 25 m3 of liquid hydrogen and was parked in the parking lot of a road restaurant. The hydrogen escaped through the safety devices of the tank and then dispersed (the weather was…

During a leak test performed on a new retention basin of a chemical plant, one of the walls of the structure collapsed on a rack of 4 pipes located nearby and caused the rupture of the supports and…

The accident occurred at a production, distribution and storage station for hydrogen city busses. After filling the hydrogen cylinders of a bus, the hydrogen detection system of the bus triggered an…

A hydrogen leak occurs at a gas cylinder storage tank park in a nuclear power plant. Employees locate the origin of the leak on a defective pressure regulator. They isolate the hydrogen release and…

Release from a compressed storage of an optics component plant The leak was observed on the hydrogen storage consisting of 19 racks of 16 cylinders each. Rescue teams set up a security perimeter…

In a fertilizer manufacturing plant, a gas leak occurred at an ammonia unit heat exchanger located in a ventilated area outside. The operator partially stopped the unit, set up steam hoses and…

A hydrogen leak occurs at on the hose connection of a tank truck being loaded into an industrial gas company. Alerted by the noise, the driver of the vehicle gave the alert. Firefighters from the…

The vehicle involved consisted of a tractor and semi-trailer and was carrying 17 cylinders of 200 m of compressed hydrogen each. The driver lost control of the vehicle, crossed the traffic lanes and…

A release of a mixture of hydrogen, nitrogen and ammonia ignited and exploded in the ammonia synthesis unit. The release occurred on a flange of the heat exchanger. and was due to a crack on the…