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: mixture of 75% hydrogen and 25% methane

Hydrogen and Methane Release from a Refinery Plant (790)
In a petrochemical plant, a gas mixture at 270 bar made of 75% hydrogen (H2) and 25% methane (CH4) leaked through the bottom valve of a dryer of a resin production unit. After detection of the leak,…

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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