HIAD Sources Categories: ARIA

In an electricity production plant, a hydrogen leak from a tank explodes forming a fireball. The explosion was in a turbine of one of the electric units (800MW each). The Unit is damaged.

The explosion, accompanied by abundant black smoke, occurred at 8:50. An ignited leak of hydrogen (H2) in the ammonia production unit (NH3) had spread to the pressure circuit carrying synthesis gas (…

The explosion followed a hydrogen leak on a unit conditioning hydrogen.The leak was caused by the mechanical rupture of the membrane of a pressure release device which was part of a pressure…

A tank of liquefied hydrogen felt down in a chemical plant.The tank, containing 100 m of liquid hydrogen, was installed on a concrete plate, which failed. The hydrogen started leaking from the valve…

The event occurred during the disconnection of the hydrogen compressor for maintenance.Two deaths and three injured workers were the consequences. The cause(s) of the event are unknown.

Fire in chemical plant (Seveso-classified)The fire developed at the top of the flare stack of a during a violent thunderstorm.The flare stack is used to discharge hydrogen produced by the…

A fire in a metallurgical plant (classified Seveso)The fire initiated in a acid treatment reactor of a workshop handling cementation of indium . Under normal conditions, the reaction of the process…

Fire and explosion in a chemicals plantThe process unit affected by the incident was a two-step production, consisting of i) hydrogenation of phenyl acetyl carbinol with benzyl amine in a isopropyl…

Two successive fires broke out in an interval of few minutes in four cells in the electrolysis room of a chlorine production plant. The technicians brought the fire under control using the fire-…

Chlorine was released in the liquefaction unit of a chlorine electrolysis plant, due to the rupture of a pipe. During the re-start phase of an electrolysis workshop in a chemical plant, chlorine (…

The fire started in a electrolysis cell. The fire originated from a hydrogen leak in the hydrogen over pressure control system of the cell and an unidentified ignition source. The ARIA report (sew…

The ignition of a hydrogen leak occurred at a semitrailer connected to a pressure reducing station, while waiting a transfer. The alert was given by personnel of the company cafeteria located nearby…

Hydrogen leakage occurred on a pipe flange in an ammonia synthesis unit. A fire started immediately, which was taken under a control before the arrival of firefighters.

Two employees were performing works on hydrogen piping (H2) in the chlorate production unit of a chemical plant when an ignited leak of H2 occurred. The operator initiated the emergency plan and…

Fire broke out along a transition corridor combining several underground pipelines transporting hazardous substances, including hydrogen, kerosene and ethylene oxide. The fire was brought under…

Excavation work was performed nearby a buried pipeline of gaseous hydrogen. The excavation machine hit the pipeline causing an under-expanded jet fire. No injuries. The excavation machine was burnt…

Fires and chain reactions involved more than 100 cylinders of hydrogen or other gases in a storage system. The fire lasted for more than 5 hours and the neighbourhood has been affected by flying…

the fire was detected by an employee during the normal inspection tour, . It was caused by the ignition of a leak of process gas (hydrogen, methane and water vapour) from the reforming furnaces.…

Fire in a ammonia plant.The accident starts with a leak of a hydrogen-nitrogen mixture at the suction flange of a compressor. The mixture ignites on contact with air and the fire spreads to an oil…

A fire broke out following a hydrogen leak on the cyclododecane unit in a chemical plant. A plume of smoke became visible outside the site. The fire was brought under control by putttng the unit in…