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HIAD Facility - Location Type: Confined


An explosion occurred in an electrostatic precipitator whilst it was being accessed for maintenance. The explosion caused an inspection hatch cover, which had been unbolted, to be blown off and…
The Microbiological Anaerobic Chamber of approximately 2 m3 capacity was containing an explosive mixture of hydrogen and air. A fire followed the explosion, but was rapidly extinguished by staff…
An explosion occurred in the glass components of a reactor at a pharmaceutical plant during a batch process. At the time of the accident, the reactor was being hydrogenated. As a result of the…
In a graphite purification workshop, the cooling circuit of an electric furnace leaks, the water decomposes in contact with materials heated to a temperature of 1,800C; the gas mixture (hydrogen,…
Explosion in a chemical manufacturing plant for the pharmaceutical and cosmetics industries, classified as Seveso high level, The explosion occurred in the hydrogenation reactor, when opening two…
Explosion in a food products plant (Seveso classified)The event occurred in the settling cyclone of a hydrogenation reactor of a starch production unit. The process consists in introducing the starch…
A hydrogen leak occurred on the a coolant pipe of an electrical generator located in the turbine building, at 200 m from the reactor. Because of the welding works ongoing at that moment on the pipe…
The incident occurred at the hydrogen coolant circuit, when purging the hydrogen with carbon dioxide and air, aiming at finding a leak. Following a preliminary investigation, the power plant company…
An in-tank explosion occurred in a gaseous waste decay tank while the plant was in cold shutdown. The gaseous hydrogen present in the tank formed a flammable mixture and ignited due to air…
The 10 m3 hydrogen storage tank at the hydrogen station belonging to the oxygen plant exploded during production operation. The hydrogen storage tank was installed and used by the plant in 1995, with…
The company affected manufactures valves and other hydrogen-storage components, equipment tests. It has offers as well a testing laboratory. The accident happened during testing of a hydrogen tank.…
A researcher was conducting an experiment that involved sawdust being heated at pressure using hydrogen gas in an laboratory-scale autoclave.The gas leaked from the autoclave during the experiment…
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…
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…
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…
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…
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…
A fire in a metallurgical plant (classified Seveso)The fire initiated in a acid treatment reactor of a workshop handling cementation of indium . Under normal conditions, the reaction of the process…
Fire and explosion in a chemicals plantThe process unit affected by the incident was a two-step production, consisting of i) hydrogenation of phenyl acetyl carbinol with benzyl amine in a isopropyl…
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