The Hydrogen Incident
and Accidents Database
European Hydrogen Incidents and Accidents database HIAD 2.1, European Commission, Joint Research Centre

HIAD Nature Event - Release Substance: 95% hydrogen, 4% methane and 1% nitrogen

Hydrogen Leak at a Refinery (952)
The release occurred on a pipeline inside a steam cracking unit located between two hydrogenation units. The gaseous mixture transported through this line (2" diameter, 30 bar, 40C) was composed of…

This material was prepared as an account of work sponsored by an agency of the United States Government.
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The portal brings together and enhances the utility of a variety of tools and web-based content on the safety aspects of hydrogen and fuel cell technologies to help inform those tasked with designing, approving or using systems and facilities, as well as those responding to incidents.

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