HIAD Nature of the Consequences: Leak No Ignition
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…
In a plant manufacturing chlorate products, a hydrogen leak occurred via the water drainage outlet onto the factory floor. Pressure in the hydrogen line increased because the hydrogen pipes were…
Dyestuffs intermediates plant. Hydrogen escaped from leak in pipeline connection to cylinder. Householders nearby evacuated for a short while.
A hydrogen leak occurs in a manufacture of steel pipes. The leak is detected and the alarm is triggered.
The hydrogen leak occurred on a lorry travelling on a motorway. According to Highways England the vehicle was carrying nine cylinders of gas, one of which had a crack and was leaking. The only way to…
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 event occurred in a bus garage when carrying out the purging process of the hydrogen cylinders. This process was executed via an electronic control system, but it was found that one cylinder…
A hydrogen leak was detected in the dispenser pump causing the alarm to sound.
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…
Hydrogen release from a road truck transporting liquid hydrogen
the commercial vehicle was traveling when the two-person crew noticed what appeared to be smoke emitting from the tanker trailer. The crew called 911 and safely pulled to the side of the road Fire…
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 temperature probe on a hydrogen make up gas compressor blew out from its compression fitting. This resulted in a release of hydrogen.