HIAD events | Clean Hydrogen Knowledge Hub

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18/05/1985
Japan

Explosion in the chlorine line of a sodium hydroxide electrolysis unit

Event ID: 634
Quality: 3
Application: Chemical Industry (No additional details provided)
Main component involved?: Valve (Generic) (No additional details provided)
Hydrogen supply chain stage: Hydrogen As By-Product
Nature of the consequences: Explosion
Classification of the physical effects: Hydrogen Release and Ignition

01/01/1976
United States

Explosion at the off-gas system of a nuclear power plant

Event ID: 635
Quality: 2
Application: Power Plant (No additional details provided)
Main component involved?: Off-Gas System (Stack House) (No additional details provided)
Hydrogen supply chain stage: Unintended Hydrogen Production - Radiolysis
Nature of the consequences: Explosion
Classification of the physical effects: Hydrogen Release and Ignition

14/02/1985
Japan

Fire - hydrogen

Event ID: 636
Quality: 3
Application: Petrochemical Industry (No additional details provided)
Main component involved?: Pipe (No additional details provided)
Hydrogen supply chain stage: Hydrogen As Process Gas
Nature of the consequences: Fire (No additional details provided)
Classification of the physical effects: Hydrogen Release and Ignition

17/05/1984
Japan

Leakage from a valve in a heavy-oil hydro-desulphurisation unit

Event ID: 637
Quality: 3
Application: Petrochemical Industry (No additional details provided)
Main component involved?: Valve (Weld) (No additional details provided)
Hydrogen supply chain stage: Hydrogen As Process Gas
Nature of the consequences: Leak No Ignition (No additional details provided)
Classification of the physical effects: Unignited Hydrogen Release

05/05/1973
United States

Fire in a refinery

Event ID: 638
Quality: 4
Application: Petrochemical Industry (No additional details provided)
Main component involved?: Flange (No additional details provided)
Hydrogen supply chain stage: Hydrogen As Process Gas
Nature of the consequences: Fire (No additional details provided)
Classification of the physical effects: Hydrogen Release and Ignition

03/08/1981
Japan

Continuous release in open atmosphere

Event ID: 639
Quality: 2
Application: Petrochemical Industry (No additional details provided)
Main component involved?: Flange (No additional details provided)
Hydrogen supply chain stage: Hydrogen As Process Gas
Nature of the consequences: Fire (No additional details provided)
Classification of the physical effects: Hydrogen Release and Ignition

07/09/1987
Japan

unintended hydrogen formation from metallic powder

Event ID: 640
Quality: 2
Application: Steel And Metals Industry (No additional details provided)
Hydrogen supply chain stage: Unintended Hydrogen Production - Chemical Reaction
Nature of the consequences: Fire (No additional details provided)
Classification of the physical effects: Hydrogen Release and Ignition

02/09/1984
Japan

Hydrogen release while filling cylinder

Event ID: 641
Quality: 2
Application: Hydrogen Stationary Storage (No additional details provided)
Main component involved?: Prd (Burst Disc) (No additional details provided)
Hydrogen supply chain stage: Hydrogen Transfer (No additional details provided)
Nature of the consequences: Leak No Ignition (No additional details provided)
Classification of the physical effects: Unignited Hydrogen Release

26/11/1985
Japan

Explosion during a chemical reaction

Event ID: 642
Quality: 2
Application: Chemical Industry (No additional details provided)
Main component involved?: Reactor / Oven / Furnace / Test Chamber (No additional details provided)
Hydrogen supply chain stage: Hydrogen As Process Gas
Nature of the consequences: Explosion
Classification of the physical effects: Hydrogen Release and Ignition

01/01/1976
United States

Explosion at the off-gas system of a nuclear power plant

Event ID: 643
Quality: 2
Application: Power Plant (No additional details provided)
Main component involved?: Off-Gas System (Filter) (No additional details provided)
Hydrogen supply chain stage: Unintended Hydrogen Production - Radiolysis
Nature of the consequences: Explosion
Classification of the physical effects: Hydrogen Release and Ignition