HIAD Event Initiating System: Hydrogen System Initiating Event

The incident occurred at a tank of the chlorine electrolyzer of a water treatment plantThe plant products were sodium hypochlorite as a disinfectant for water treatments. The production process used…

A serious chemical accident occurred at chemical industry producing olephins and phenols. The accident resulted in injuries to several workers and extensive damage to the plant, as well as minor…

A section of effluent piping ruptured on the Hydrocracker Reactor of a Refinery. A mixture of light gases (methane, butane), light and heavy gasoline, gas oil and hydrogen was released from the pipe…

The loss of control of a reaction caused a fire in a pharmaceutical plant caused a reaction runaway and the rupture of a 6 m reactor. A cloud containing sodium borohydride and hydrogen was emitted.…

3 people were killed when 18 hydrogen gas cylinders exploded.

The event occurred at a company producing machines for water treatment for the food industry.A pressurized tank exploded killing two workers and shaking windows and ceilings at neighbouring companies…

The accident occurred in a disposal storage for contaminated waste, consisting in a 65-metre shaft flooded with seawater. At the origin of the explosion was the reaction with water of at least two…

Hydrogen gas cylinders exploded at the same time in three industrial locations, when the opening valve was opened. The overpressure generated by the explosion caused the walls of the hydrogen…

Hydrogen exploded in a compressor unit at a chemical plant, causing a fire.

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.

An explosion occurred on a hydrogen compressor due to an air ingress.The explosion projectiles damaged an ammonia storage tank with consequent ammonia release (domino effect) Three people were…

At approximately 8:45 a.m. an employee was troubleshooting a thermal chamber, evaluating a Hydrogen on Demand (HOD) unit. The chamber was reported inoperative that morning. Two units were being…

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…

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.

There was a massive explosion at one of the generator-turbine units of a coal-based power station. Undetected hydrogen leak from the generator was identified as a major trigger.According to the news…

The event started when a gasket in a water pump was blown out. The water pump was situated inside a 100 m long, 10 m wide, and 7 m high building. The pump was feeding water to a vessel containing…

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 (…

Rockville, Maryland, on June 9th, the control panel door for the 32 hydrogen dryer blew off due to a small hydrogen explosion. No one was injured in the event, which occurred in the non-nuclear side…

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…