HIAD Causes: Material/Manufacturing Error

The last flight of the Space Shuttle Challenger ended 73 seconds after the launch in an explosive burn of hydrogen and oxygen propellants that destroyed the External Tank and exposed the Orbiter to…

An explosion occurs in the oxygen gas holder in an electrolysis plant. The explosion is due to the entry of hydrogen in the oxygen gas holder.The dome of the gas holder and the collar were blown away.

A crack occurred in a storage tank (300 kg of hydrogen) releasing gaseous hydrogen to atmosphere. The vapour cloud exploded with an apparent centre of explosion 9 m above ground, with a energy…

Hydrogen gas leaking from a tanker truck came in contact with a spark, causing an explosion at a semiconductor plant.

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.

An explosion occurred in a pipe system carrying hydrogen and methane at an ammonia plant. No major injuries have been reported.

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 release and fire occurred during what appeared to be a normal operation in a reactor section of a Residue Hydrotreater Unit, when an eight-inch pipe connected to a heat exchanger failed at the…

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…

The accident occurred in the Reactor 6 used to carry out the hydrogenation of a pharmaceutical intermediate.The operation of the plant was organized in two shifts. Since the hydrogenation at Reactor…

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 cracking happened in an ammonia plant, started up in 1970, on the pipe leading hot synthesis gas from the synthesis convertor to the first heat exchanger. This pipe was affected by six cracks and…

A dual phase hydrogen tanker was expected to refil the storage of arefulein gstation for buses. Due to the failure of the a bolt of the tanker pump, the fefeulling could not take place. This resulted…

Leak from faulty hydrogen seal ignited by short circuit between inboard slip ring and outboard slip ring radial lead connection. Hydrogen flame caused damage to brush gear assembly and inboard slip…

Hydrogen gas leaking from drain pipes in a hydrodesulfurization plant: There was a hydrodesulfurisation plant which had a recycle hydrogen compressor fitted with a suction rectifier. Hydrogen gas…

A ruptured hydrogen line caught fire at a commercial gas plant.

The fire started as a result of an explosion in the process section of a refinery. An open structure of steelwork protected with reinforced concrete housed the usual furnaces, reactors, heat…

The Unit for Catalysed Removal of Carbon Dioxide (Catacarb) leaked and hydrogen fire at the hydrocracking unit. The fire lasted approximately 10 minutes. Localized corrosion caused a pipe to fail and…

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-…

At a refinery, a leakage and fire occurred during usual operation at a medium-pressure hydrocracker for the desulfurization and decomposition of heavy gas oil. Gas of high-temperature and high-…