HIAD events | Clean Hydrogen Knowledge Hub

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01/01/1980
United Kingdom

Fire on the pre-heater of a desulphurisation unit

Event ID: 691
Quality: 3
Application: Petrochemical industry
Component involved: heat exchanger (pipe)
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

18/04/1988

Explosion in an a ammonia plant

Event ID: 690
Quality: 2
Application: Chemical industry
Component involved: reactor / oven / furnace / test chamber
Hydrogen supply chain stage: Hydrogen as feedstock
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2021

22/07/2010
China

Leakage and ignition of hydrogen from a pipeline

Event ID: 689
Quality: 2
Application: Chemical industry
Component involved: pipe (generic)
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

28/02/2003
China

Explosion of a hydrogen tank in a steel manufacturing plant.

Event ID: 688
Quality: 3
Application: Hydrogen production
Component involved: CGH2 tank (stationary)
Hydrogen supply chain stage: Hydrogen production
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

14/05/2006
United States

Venting from a LH2 storage vessel.

Event ID: 687
Quality: 4
Application: Hydrogen stationary storage
Component involved: venting system (line)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: leak no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/12/2025

16/12/1991
United Kingdom

Fire at an acetic acid plant

Event ID: 686
Quality: 2
Application: Chemical industry
Component involved: valve (generic)
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 01/01/2020

21/12/1991
United Kingdom

release at a hydrocracker in a refinery plant

Event ID: 685
Quality: 3
Application: Petrochemical industry
Component involved: PRD (valve)
Hydrogen supply chain stage: Hydrogen as process gas
Nature of the consequences: leak no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 01/01/2021

01/01/1993
Germany

Fire from a rail tanker after accidental formation of hydrogen

Event ID: 684
Quality: 2
Application: Chemical industry
Component involved: chemical storage tank
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

29/11/1974
United States

Explosion in a hydrogen tank of a food producing plant

Event ID: 683
Quality: 4
Application: Chemical industry
Component involved: CGH2 tank (stationary)
Hydrogen supply chain stage: Hydrogen as feedstock
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026

19/01/1976
United States

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

Event ID: 682
Quality: 4
Application: Power plant
Component involved: off-gas system (safeguars seal)
Hydrogen supply chain stage: Unintended hydrogen production - radiolysis
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/01/2026