HIAD Causes: Material/Manufacturing Error

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.

When waste alkali solution was taken out of dumper trucks into a waste liquid storage tank, a reaction occurred in the tank. As a result, the solution in the tank foamed over it, and reached an…

Hydrogen line at ammonia plant sprang a leak which ignited. Fire put out immediately causing no damage.

A rupture in the furnace of an oil refinery caused it to loose 700 pounds of diesel and hydrogen resulting in a fire.

A technical failure in the High-Pressure turbine blades caused high vibrations in lubricating oil pipes. Some pipes broke off and the oil leak caught fire from hot surfaces. Also the generator's…

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…

Hydrogen leakage occurred on a pipe flange in an ammonia synthesis unit. A fire started immediately, which was taken under a control before the arrival of firefighters.

Weld failure caused a fire involving a hydrogen pipe at a fertilizer ammonia plant. Source of ignition was autoignition.

Hydrogen enrichment of the gaseous phase in a rail tanker initiated an exothermic reaction between hydrogen and chlorine which in turn triggered fire of iron chloride.

This incident occurred in a unit processing vegetable oils and fats. A fire-brigade from the involved town was at the scene in a few minutes and was assisted by the Fire Department of a bigger city.…

A fire broke out following a hydrogen leak on the cyclododecane unit in a chemical plant. A plume of smoke became visible outside the site. The fire was brought under control by putttng the unit in…

Hydrogen and butyl acetate released and caught fire on the vent of a hydrogenation reactor, part of a dyes manufacturing plant. The pressure inside the reactor increased due to excess hydrogen…

The on-duty field technician noticed a self-sustained ignition in the hydrogen pipes of a sodium chlorate plant. The flare-like flame of less than one metre in height was located in the space above…

a gas leakage (approximately 70% hydrogen, 21% nitrogen and the rest carbon monoxide and other impurities) occurred at the connection between a temperature measurement casing and a flange in the…

An isolation failure in starter coil of the high voltage generator induced an electric arc to the hydrogen supply line, with consequent fire and melting of the line.

Fire in hydrogen compressor at Houston refinery

Employees were refilling a rack of 15 hydrogen cylinders that were connected together on a steel pallet with railings. A leak developed at a valve and the pressurized hydrogen ignited. Operations…

The incident took place on the reforming furnace unit of the plant. Around 23:30 pm, during a normal inspection tour, an operator detected a fire on a section of a steam line. He immediately informed…

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…