The accident occurred in a plant producing synthesized active ingredients for the pharmaceutical industry. An explosion and a fire occurred in one of the workshops of the plant. The chemical reaction…
The hydrogen release of a defect valve ignited due to an unknown cause. The fire caused the melting of soldered joint with consequence additional release of hydrogen at 6.2 bar, which contributed the…
Fire on a filter of an autoclave. The event occurred in a plant for the production of plastics. After catalytic synthesis of amines, the filter of the autoclave was taken out for cleaning. During…
A deflagration occurred at a chemical plant during a synthesis operation involving sodium tri-acetoxy-borohydride inside a 5,300-litre reactor. Around 5:30 pm, the technician observed that the acetic…
In a high pressure gas plant, hydrogen gas leaked through a flange on a non return valve located on a hydrogen inlet of a reactor. The leaking gas ignited.
The event occurred in an alkylation reactor. Due to the rupture of a pipe (probably due to material failure), a power failure took place and the plant was automatically put in hot-stand-by mode. This…
Follow a leak in a seal of a heat exchanger (metal-covered asbestos) a fire occurred in a reforming process. The hydrogen-rich mixture caused spontaneous inflammation. The fire lasted 30 minutes. The…
Firefighters used thermal imaging cameras to locate and extinguish a hydrogen fire at a silicon manufacturing plant.
The accident happened in a refinery unit, constructed ten years before. A pigtail ruptured in a steam reformer for the production of hydrogen, and caused a major fire, which destroyed most of the…
A short circuit occurred in a bus bar system in a transformer building, causing a fire in adjacent switches. This was followed by the tripping out of the three refinery turbo-alternators, cutting off…
Due to the failure of a exhaust system, compressed hydrogen leaked into an area containing electrical components, with consequent fire.Leakage was allowed when exhaust system failed
The accident took place in a tank-type pressurised separator on the synthesis gas line of an ammonia production plant. The pressurised separator operates at nominal values of 25 bar and 5C. It…
In a fertiliser plant, an ammonia synthesis unit stopped following the malfunction of an alternator (due to a thunderstorm). The safety features were operating normally, yet the synthesis gas (N2 /…
The accident occurred on the hopper fine powders from a pair of cyclones (the hopper is the bottom conical part of the cyclone collecting the powder/dust separated from gas phase). A bursting disc…
Fire in an ammonia plantA fire broke out in the hydrogen section of ammonia plant.
The fire was in a polyamide production chemical plant classified SEVESODuring maintenance of an isolated unit producing a polyamide monomer (LACTAME), a fire developed on the ground floor of the unit…
A fire broke out at a flange of a heat exchanger used in the catalytic reforming unit of a refinery. This exchanger makes it possible to heat the load of heavy oil and hydrogen by recovering the heat…
A fire occurred at an oil factory during maintenance work. On the day of the incident, a distillation unit was shutdown for a steam air tightness test. Cooling equipment on the distillation unit was…
The accident occurred in the de-sulfurization unit, and specifically on a pipeline at 50 bar, for the recycling of the hydrogen (containing hydrogen sulfide impurities). The pipe failed due to…
A fire broke out on a transformer transforming 225,000 V into 15,000 V in a metallurgical plant. This transformer supplies electrical power the site and to a neighbouring factory. In the following…
A sudden fire started in the refinery's hydrocracking unit at the hydrogen compressor of re refinery (India).
A hydrogen skid was placed into service in a nuclear power plant, outside the controlled area. This skid, like seven others, was located in a gas cylinder storage facility. It was supplied by several…
An explosion occurred in the hydrogen washing tower of a chlorate plant caused by the breaking of the rupture diaphragms on the tower cover. The discharged hydrogen ignited, causing a minor leakage…
A fire started on the primary hydrogenation reactor of a chemical plant synthesizing alcohols and acids by reactions between olefins and a H2 / CO gas mixtures. The alcohols are synthesised in 3…
The accident originated in the isomerisation unit and propagated to the benzene saturation unit. The accident source was a mechanical rupture of one of the two compressors used to transfer hydrogen…
Severe hydrogen ingress into the stator coolant system resulted in a fire in the stator coolant head tank, ignition source unknown. No injuries to personnel. Minimal damage to plant.
The event occurred on vent stack of an ammonia synthesis unit. The release of the gas was more specifically on the water purge line or the hydraulic guard of the vet stack. The process gas…
The fire occurred on the tube plate gaskets of 3 of the 4 exchangers loaded with catalytic reforming effluent. The fuel (500C and p=30 bar) was a mixture of 30% hydrocarbons and 70% hydrogen. After…
Release of gas from a coking plant on a 20 000 cubic meters gas holder which ignited causing a fire. The accident took place during repair works. The gas was made of 65 % of hydrogen , 25 % of…
As the airship approached the docking mast, it performed a sharp turn to face into the wind, which was shifting. The engines were run at full speed astern for about a minute to slow the airship. Dust…
