HIAD Facility - Storage Medium: Gas

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.…

A hydrogen release and subsequent fire occurred at meter station of a pipeline transporting hydrogen to a refinery. Local refinery emergency response team responded and secured the area. The pipeline…

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…

The station was storing 6,000 litres of liquid hydrogen in ten tanks. Rescue services were alerted and the station's activity is interrupted. The leak was stopped by closing the valves. According to…

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 charge pump on a hydro-desulfuriser unit tripped. The charge flow control valve then opened wide on low flow. The high pressure hydrogen supply to the unit flowed backwards through a faulty non…

A 50-litre standard hydrogen gas cylinder was temporarily placed and used in a laboratory. The hydrogen gas was used for a flame ionization detector (FID) in gas chromatography (GC) instrument. The…

Alarm received by firefighters around midnight by a resident who heard abnormal noise under the Beaumont Bridge while walking his dog.Perimeter of security set up very quickly with isolation of the…

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 temperature probe on a hydrogen make up gas compressor blew out from its compression fitting. This resulted in a release of hydrogen.

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…

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…

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 leak occurred on a relief valve of a high pressure hydrogen storage tank. No explosion or fire occurred.

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…