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Regions and Countries: France


A liquid hydrogen leak occurs in a steel plant on a 42000 l tank of liquid hydrogen. A sealing coupling was installed to stop the leak.
A leak of 700 l of gaseous hydrogen was detected around on a connection of a rack of cylinders on a trailer truck, in aircraft plant (classified Seveso, lower tier).
The release occurred after the collision between a truck containing liquid hydrogen and a truck containing manganese dioxide on a highway.Due to the release, the traffic was interrupted for 4 hours…
A leak occurred on the safety valve of a train wagon transporting liquid hydrogen wagon. The train was composed of 10 wagons. The train was stopped on the railway several hours to allow…
A leak occurred on a rack containing 12 cylinders of hydrogen (50 l at 200 bar each) delivered by a lorry inside the fenced storage area of a bulb manufacturing plant. The plants safety manager…
The incident occurred in a plant producing organic chemistry products. Hydrogen leaked briefly from an hydraulic valve. There has been no victim.
The release took place in a metal cold rolling workshop.The hydrogen leaked from a cylinder of 15 m3, which was part of a storage system of 250 m3.Half of the workshop and the surrounding roads were…
A hydrogen release occurred in a storage area of a nuclear power plant.. The storage consisted of three trailers made of 14 compressed gas cylinders each. The cylinders, mounted horizontally, had a…
The event was initiated by the burst of a rupture disc on a reactor during a hydrogenation process. The hydrogenation reaction occurs under pressure in a tank containing 3,000 l of a mixture of…
The accident occurred on one of the heat exchangers of the hydro-desulfurisation unit. The role of the exchanger , located between the charge pumps and the furnace, is to heat the charge using the…
Although the ARIA report (see references) does not mention it, the unit affected was very probably the oil desulfurisation unit. The release occurred following the rupture of a pipe of 250 mm in…
Leakage of a mixture of hydrogen, nitrogen, citric, hydrofluoric and hydrogen sulfide occurs during ventilation shutdown on high temperature PVC furnaces. The accident follows an electrical outage…
A six-cylinder rack containing an argon / hydrogen mixture is dropped from a truck on a national highway, causing a gas leak.A security perimeter was set up. The services of the equipment took care…
Around 13:45, a hydrogen leak on a pipe occurred in a refinery. Cold cutting of a purge was underway on the equipment as part of a work stoppage. The worker, who detected the leak, stopped the air…
The operator detected a leak of aerosol hydrocarbons (diesel, hydrogen and hydrogen sulfide) in the diesel desulfurisation unit, causing a release of hydrogen and hydrogen sulfide at the top of the…
A liquid hydrogen leak occurs on one of the cylinders that a truck was carrying. After the leak was stopped, the vehicle was escorted by the fire brigade and taken to a laboratory for inspection.
A hydrogen leak occurred on a flange located on a pipe coming from the hydrogen storage tank. The staff was confined and the Internal Operation Plan was launched.Helium was injected in the tank and…
During a patrol, an operator detects a hydrogen leak in a refinery on a footbridge 30 meters high. The origin of the leak is identified 4 days later on a pipe under insulation. The operator proceeds…
In a fertilizer manufacturing plant, during his inspection round, an operator detected a hydrogen leak at a flange of an exchanger located between the conversion and decarbonisation stages of the…
A 40,000-litre capacity tanker lorry carrying liquid hydrogen tipped over into a ditch on a curve in an intersection while travelling on a municipal road at the edge of town. The lorry had just left…
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