HIAD Sources Categories: ARIA

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…

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 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…

At a rubber factory, an explosion occurred inside a lubricant container filled with 18 tonnes of tri-(nonylphenyl) phosphite (TNPP or TNPA). This tank was typically stirred and maintained at 45C.…

The accident started with a leakage of distilled petroleum intermediate and hydrogen in the desulfurization unit of the distilled intermediate. Both substances ignited and exploded, with a later…

At around 5.45 am, an explosion occurred at an oil refining plant. The operating units of the hydrogen compressors are stopped. Around 8:45, firefighters master the fire. 11 people are taken to…

An explosion and fire occurred at night inside a unit for the synthesis of toluene di-amine (TDA). The process implies the hydrogenation of di-nitrotoluene (DNT) in presence of Isopropanol as…

An explosion occurs during testing of the hydrogen feeding of an engine in the Spatial Agency Centre.

The event occurred in an atmospheric pressure tank storing effluents. The plant was in the production phase. The head of the overfill prevention valve located at the top of the tank was thrown a…

In a chemical plant, a violent explosion took place during the batch production of chlobenzorex from an aqueous solution of sodium borohydride contained in a feed tank on a movable truck. The…

A lightning strike caused a voltage drop on the power supply of a chlorine-alkali plant using the mercury process.The emergency electrical system was activated, though restoring the external supply…

An explosion followed by fire occurred in the hydrogen filling unit of chemical plant for the production of dyes and pigments.

The explosion occurred during repair work on a boiler. A technician had previously descaled the device using hydrochloric acid, after which he performed the neutralisation step with soda and drained…

At 11:15 pm, an explosion followed by fire occurred in the vicinity of the measurement transformer on an isolated 90,000 V electrical oil transformer at a plant manufacturing technical polymers.…

A mixture of hydrocarbon and hydrogen leaks from hydrogenation unit of a refinery. The cloud explodes. The leak was caused due to corrosion of a carbon steel pipe at a bend, which was one eighth…

Gaseous hydrogen leaked from an oil pump part of the filling and conditioning system in a industrial gases production plant. The released hydrogen ignited and exploded. The cause has been a human…

In a pharmaceutical company classified Seveso upper-tier establishment, a deflagration occurs at the end of a hydrogenation reaction involving a chemical raw material, acetic acid, water and a…