HIAD Quality Indicator: 2

Furnace tube leak caused excessive heat on H2 tube causing rupture

Overpressure caused a cylinder head of a gas compressor to fail causing release of hydrogen followed by a fire during the start-up of the compressor after maintenance.

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…

the hazmat crews evacuated the workers at the Atmel building and established a safe zone. The crews used liquid nitrogen. The biggest danger was the chance of explosion

Collision of a hydrogen and fuel cells bus.The bus driver took the curve too narrow and hit the corner of the overhang of a shop. The bus was damaged at the upper right corner.

Collision of a hydrogen and fuel cells bus with private car. The driver of the private car parked nearby a hospital opened the driver door. Damage at the front, right side, body and windowpane.

A hydrogen and fuel cells bus was hit by a car. Damage on the right side

A hydrogen and fuel cells bus was hit by another bus at the bus stop, damaging the rear, left side.

A fire, fuelled by a mixture of gasoline and hydrogen, occurred on a heat exchanger located at 15 m height in a gasoline processing unit of a refinery. The operator triggered the emergency plan. Site…

Spillage of hydrogen and heavy gas oil at heavy oil hydrogenation desulfurization device due to insufficient heat treatment after welding valve:

In a petrochemical plant, a gas mixture at 270 bar made of 75% hydrogen (H2) and 25% methane (CH4) leaked through the bottom valve of a dryer of a resin production unit. After detection of the leak,…

An explosion occurred while inflating a balloon with hydrogen gas. The News reported the involvement of the hydrogen bottle.

The hydrogen possible leaked and ignited from a tank which was inside a car parked in a hospital underground parking garage. The tank was supposed to be used for launching a weather balloon. Two…

Hydrogen bus hit by a private car, which was driving out from a parking place. Bus damaged on the rear, right side.

Hydrogen bus hit by a car during the turn to the left; bus left side damaged.

hydrogen bus hit by a car. Damage on the bus right side.

Hydrogen bus hit by private car in the roundabout at the main station; damage on the right side

[NOTE: the sources are not completely clear in describing the system involved in this incident ; the following is the most plausible option according to HIAD validator]The explosion happened in two…

A hydrogen leak followed by an explosion occurred at an elbow of a pipeline cooling system and the separator of the distillation unit. The explosion destroyed the unit and injured two workers.

Hydrogen explosion on NPO "Azot" in Rovno, Ukraine.