HIAD Sources Categories: eMARS
In a lube oil plant of a refinery, during the isomerisation of wax, the high pressure reactor ruptured, releasing gas composed by 70 % of hydrogen and 30 % of gaseous hydrocarbons (methane, ethane…
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 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…
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…
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…
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…
A pipe failed, probably due to material failure, and the plant was automatically put in hot stand-by (feed and energy supply automatically cut out). The plant was gradually cooled down. After about…
A fire broke out affecting the heavy fuel purification plant of the refinery.The incident could have originated by the failure of one of the following plant components:- pipes leading to the pressure…
The event took place in the on one out of the seven reactors for ammonia synthesis. The day of the accident, preparation works for the decennial pneumatic test (previous pneumatic test was carried…
During the isomerization of wax in a lube oil plant, the high pressure reactor ruptured, releasing its contents. The released gas ignited and a fire developed in the plant area where operators and…
An over-dosage of natron lye in a silicon dust suspension container raised the ph-value up to 11, producing large amounts of hydrogen in a short time. The hydrogen caused an extreme pressure increase…
An isomerization unit of a refinery was affected. The release was caused by the mechanical failure of one of the two compressors working in parallel at a pressure of 20 bars, conveying the gas…
The fire took place during maintenance works in one out of the three gas extractors of the coke process line. Main cause was displacement of a flange which allowed the entrance of flammable mixture…
The fire developed on one of two naphtha crackers The rupture of the reactor made that the hydrogen, petroleum products and the pyrophoric catalyst came outside the reactor. The mixture immediately…
While de-plugging a cooling circuit, a blockage suddenly released, causing a heavy movement of a flexible hose connected to the system. The flexible hose hit several small pipes and one employee…
During the start-up operation (phase) of a cryogenic unit, a separator exploded, releasing ethane, ethylene, methane and hydrogen. The bursting of a tank was caused by a 1600 mm long incipient crack…
The incident occurred in the hydrogenation reactor and products cooling unit. The reactor operated under vacuum conditions and the cooling medium was water.Toxic, flammable and explosive substances (…
A 24" pipe carrying synthesis gas (Hydrogen = 43.5%, Nitrogen = 14.08%, Methane = 0.2%, Carbon Dioxide = 12.3%, Water = 29.3% by volume) ruptured. About 60 kg of hydrogen contained in the gas…