HIAD Sources Categories: ICHEME
The fire ignited roofing materials which had fallen down as the result of the explosion.The operator, who was outside the plant when the explosion occurred, pulled the emergency switch which shut…
Discharge pressure of a hydrogen compressor on a chloride plant fell to alarm level without any prior warning and simultaneously three bumps were heard.Smoke was seen coming from the hot motor…
An explosion and fire occurred on a reformer at a fertiliser plant. Source of ignition was autoignition or electric motor.
A 7 inch thick reactor of a wide range hydrocracking unit being operated by computer at 2500 psi failed explosively due to localised heating. The blast caused widespread damage over a 300 yard radius…
A fire and explosion occurred at a catalytic reformer unit. The fire centred between the reactors and fired heaters of the reformer and resulted in extensive damage to the unit.The explosion rocked…
An explosion occurred in a water skim tank associated with an ethyl benzene dehydrogenation reactor system. The reaction mixture from the reactors containing styrene, ethylbenzene, benzene, toluene…
Localized corrosion of a FCCU (Fluid Catalytic Cracking Unit) feed Hydrotreater recycle hydrogen line by-pass around a hydrogen pre-heat exchanger led to an explosion and fire.The failed part of the…
A fire occurred in a pipe trench containing about 50 pipelines.The pipelines were carrying a wide variety of hydrocarbons from crude oil to residuals. In addition, there were lines with steam, fuel…
The explosion occurred in the ammonia/hydrogen separator of the ammonia reactor due to metallurgical problem.
During repairs of a heat exchanger in a benzene plant, a mixed gas (methane and hydrogen) contained in the cold box attached to the exchanger leaked and caught fire from a welding spark. The…
An operator had just replaced the ignition port cover on a hydrochloric acid plant burner. Normal start-up was continued by closing the drain valve in the product run off line and opening the…
The fire started as a result of an explosion in the process section of a refinery. An open structure of steelwork protected with reinforced concrete housed the usual furnaces, reactors, heat…
A fire occurred in a hydrogen and catalyst loading lines of heavy oil unit. The most likely cause was that a hydrogen purge pipeline failure allowing hydrogen to escape. This mixed with hot oil…
A fire occurred at a refinery hydrocracker plant involving a gauge glass and hydrogen gas oil.
A fatality occurred after a flexible hose used to transfer hydrogen to the catalytic reformer was over-pressurised and caught fire.On June 9, 1997, No. 1 and No. 2 hydrogen modules were connected to…
A fire occurred on a plant. The fire resulted from an escape of liquid hydrogen from a joint between an isolating block valve and a relief valve on one of the separation column preheater. The…
A leak occurred on a 4 inch hydrogen main gas line which ran along a pipe bridge at the east end of a first stage compression plant building, ignited.The source of ignition was hot welding sparks…
A tube in a hydrorefiner heater ruptured resulting in an extensive fire inside and outside the furnace. The main fire in the furnace was extinguished within 15 minutes and the escaping gas / vapour…
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…
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…