HIAD Causes: Management Factors
The explosion occurred while restarting the ammonia reactor. Synthetic gas (70% H2) was released at the flange of the relief valve of the turbo-compressor. The explosion was followed by a jet fire.…
The incident affected the raw material buffer tank (design pressure 0.38 MPa) of a diesel hydrogenation unit in a refinery. This buffer tank is located between the hydrogenation reactor and the raw…
The event occurred at one of the unit producing iron powder, consisting of a furnace with a running belt for the powder, kept under hydrogen atmosphere to reduce and purify the metal. The hydrogen…
A gaseous mixture of hydrogen (H2), methane (CH4) and ethane (CH3-CH3) at 54 bar was cooled in a heat exchanger upstream of a hydrogen purification system. The accident started with a double…
At the time of the incident, the desulfurization unit was shut down for scheduled cleaning of a cooling tower with reintroduction of a gas mixture into the system at a high hydrogen content. The…
The explosion occurred in the compressors unit of the plant. Witnesses reported a cloud of yellow smoke and a fire ball at its bottom. This first event has been followed by a fire fed by a hydrogen…
The syngas leak (hydrogen + methane) occurred at exit of the ammonia production reactor and led to an explosion followed by a fire.The start point of the sequence of events was the syngas at the…
An explosion and fire occurred at around at a solid hydrogen storage company. The accident occurred while a press used to compact magnesium hydride and natural graphite into pellets was being…
The explosion occurred in a Litol benzene unit, when it was being restarted following a scheduled shutdown for maintenance. The explosion followed the release of about 30 kilograms of hydrogen gas…
The incident occurred in a hydrocracker unit of the refinery. A control valve on the liquid line between the high- and the low-pressure separators was opened in error and the liquid allowed to drain…
The incident occurred in the hydrogenation Unit of a non-further specified chemical plant. Before the occurring of the event, a growing leak had been discovered in the vicinity of a circulation pump…
Explosion, with consequent fire, in chemicals production plantThe accident occurred in the organo-metallic compound production unit, on a transport container for aluminum alkyls, which exploded…
An explosion followed by a fire occurred at a tar precipitator of gas treatment of a coke oven. The extractors were manually activated. Ten minutes later, the operator activates the internal…
An explosion and fire occurred on a reformer at a fertiliser plant. Source of ignition was autoignition or electric motor.
An explosion occurred in a hydrocracking reactor fitted with TOC which is a automatic cut-off system for raw oil and hydrogen supply. On the day of the incident, the operation was stopped with TOC…
The event occurred at an ethylene production plant. The plant was shutdown at the time as the supply of compressed air to the gauges had inadvertently been switched off. This failure of the air…
The incident at a bio-fuels research laboratory occurred when a visiting research fellow was transferring hydrogen, oxygen and carbon dioxide into a low pressure gas cylinder to be used as a…
A violent explosion occurred at a blast furnace. The explosion occurred while the blast furnace was being cleaned at the end of casting. For this purpose, worker poured the contents of a casting…
SUMMARYThe explosion occurred in a catalyst regenerator of the catalytic cracking unit in a fluidized bed during a technical shutdown. A few seconds later, a second explosion is perceived, it is the…
An explosion occurred at a chlorine production plant during the restart of the installation. An hydraulic syphon had probably been blocked by fire extinguishing products following a previous fire on…