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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 broke out at a hydrogen compressor of the reforming unit of the refinery. Following the safety procedures, the emergency stop of the unit was activated and the unit was decompressed using a…
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…
The fire developed on the hydrogen production unit of a subcontractor in a plant producing metallic wire articles. The cause was a malfunctioning of the hydrogen unit. The production was stopped…
DISCLAIMER: this event description is unsatisfactory. Details on the system and the real incident evolution are (still) missing. The incident affected a prototype light hydrogen vehicle in a hydrogen…
A hydrogen leak occurred on a sintering furnace in a manufactory of uranium pellets. The event happened during the restart phase after a period of maintenance. The hydrogen ignited at the location…
The fire broke out under the cabin of a heavy-duty vehicle transporting industrial gas cylinders (hydrogen, acetylene, helium) close to a paint company. Firefighters shelter the employees of this…
A truck driver carrying compressed gas cylinders loaded on pallets stopped on the emergency stop lane of a highway after a tyre burst. The gases transported were: 120 m of oxygen, 24 acetylene…
A fire broke out on the insulating plastic elements of an alkaline electrolyzer in a unit of a chemical plant. The shift saw the smoke from the control room. The first action was to drain the potash…
In a chemical plant, a fire broke out on a hydrogen column of an ammonia manufacturing unit. The internal security service extinguishes the fire with powder and nitrogen injection. The unit was…
A hydrogen leak occurred on a 50 mm pipe feeding a reactor. The leak ignited spontaneously when mixed with air. Thanks to the closing of the input and output valves, the quantity released could be…
The incident occurred in the turbine-generator hall of a nuclear power plant. Hydrogen leaked from the alternator and ignited.The hydrogen line was purged to stop the leak. The plant employees were…
Around 4 a.m., a major leak occurred at the outlet of the diesel hydrodesulfurization furnace in a refinery. The goal of this unit is to lower the sulfur content of diesel fuels produced in other…
In a petrochemical plant, a fire occurred on the methanation unit (95% H2 + 5% CO -> CH4 + H2 + H2O) of a steam cracker. A seal break on a flange of the circuit caused of the accident. No…
A fire occurred on a valve of a hydrodesulfurisation unit in a refinery. A cable gland was modified. Steaming wreaths are permanently installed.
In a plastics production plant, a pallet containing 7 cylinders of nitrogen and 1 cylinder of hydrogen fell from a truck traveling in a logistics zone. The driver stopped the vehicle, cut off the…
The gas leak containing hydrogen (H2) and hydrogen sulfide (H2S) occurred at the upper isolation valve located at a high-pressure separator (300 bar) of an oil production unit in a refinery.…
A fire started in a refinery's gas oil desulfurization unit. The purpose of this unit is to separate sulfur from hydrocarbons and to do so, the latter are raised to 340C in the presence of hydrogen…
At around 9:15 a.m., during a routine inspection, a flame was observed at the bottom flange of a reactor in a refinery. A few moments later, sensors near the leak detected a rise in temperature.The…
During a work tour on a refinery, an employee noticed a fire at the level of a flange at the inlet of the grille of an exchanger, located at the outlet of a reactor of the catalytic reforming unit.…
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