HIAD events | Clean Hydrogen Knowledge Hub

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02/11/1997
Israel

Explosion in Cone-Roof Gas Oil Tank

Event ID: 742
Quality: 3
Application: Petrochemical industry
Component involved: gasholder/gasometer
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: explosion followed by a fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

06/10/1969
Japan

Explosion in a chemical plant

Event ID: 741
Quality: 2
Application: Chemical industry
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

24/06/1969
Japan

Explosion in a chemical plant

Event ID: 740
Quality: 2
Application: Chemical industry
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

10/02/2009
United States

Breakaway not meeting specifications

Event ID: 739
Quality: 3
Application: Hydrogen refuelling station
Component involved: dispenser (hose)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: near miss
Classification of the physical effects: n.a.
Date entry in HIAD: 13/07/2026

02/08/2004
United States

Breakaway leak at a HRS

Event ID: 738
Quality: 2
Application: Hydrogen refuelling station
Component involved: dispenser (hose)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 15/04/2026

22/01/2009
United States

Breakaway failure during FCEV refuelling

Event ID: 737
Quality: 3
Application: Hydrogen refuelling station
Component involved: dispenser (hose)
Hydrogen supply chain stage: Hydrogen transfer
Nature of the consequences: near miss
Classification of the physical effects: No Hydrogen Release
Date entry in HIAD: 15/04/2026

28/12/2007
United States

Explosion in a sodium chlorate electrolyser

Event ID: 736
Quality: 3
Application: Chemical industry
Component involved: electrolytic cell
Hydrogen supply chain stage: hydrogen as by-product
Nature of the consequences: explosion
Classification of the physical effects: n.a.
Date entry in HIAD: 15/04/2026

18/12/1996
Japan

Fire at a desulphurisation unit

Event ID: 735
Quality: 2
Application: Petrochemical industry
Component involved: compressor / booster / pump (pipe)
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: release, no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 01/01/2020

11/06/1996
Japan

Fire at a waste liquid storage tank

Event ID: 734
Quality: 3
Application: Chemical industry
Component involved: chemical storage tank (waste)
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

01/08/2006
United States

Rupture of a ball mill reactor

Event ID: 733
Quality: 4
Application: Laboratory / R&D
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: hydrogen stationary storage
Nature of the consequences: explosion
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 13/07/2026