Hydrogen Ignitions - Wildly Differing Opinions, and Reasons Why Everyone Could Be Right

Safety and Health Division
AIChE Spring Meeting and Global Congress on Process Safety
March 31, 2014 - 10:30am-11:00am
In collecting background material for the recent CCPS book “Guidelines for Determining the Probability of Ignition of a Released Flammable Mass”, the wide variability of experiences, opinion and data on the topic of ignition probabilities of hydrogen releases was striking.  This discord was apparent even for pure hydrogen; one can only imagine the complexities involved with ignitions of mixtures of hydrogen with hydrotreating feedstock, or ignitions of hydrogen-containing synthesis gas streams.  This paper discusses the literature on the subject, including experiments that suggest why people might reasonably have these vastly different views on the subject. Given that the range of opinions for a given situation commonly range from 1% to 100% probability of ignition, getting a better understanding of the phenomena is critical to providing better guidance for a variety of risk analyses such as Quantitative Risk Assessment (QRA) and Layers of Protection Analysis (LOPA).
Professional Development Hours
0.5 PDHs
You will be able to download and print a certificate for these PDH credits once the content has been viewed. If you have already viewed this content, please click here to login.

Would you like to access this content?

No problem. You just have to complete the following steps.

You have completed 0 of 2 steps.

  1. Log in

    You must be logged in to view this content. Log in now.

  2. Purchase Technical Presentation

    You must purchase this technical presentation using one of the options below.
    If you already purchased this content recently, please click here to refresh the system's record of ownerships.


Credits 0.5 Use credits
List Price $25.00 Buy now
AIChE Members $15.00 Buy now
AIChE Undergraduate Student Members Free Free access
AIChE Graduate Student Members Free Free access
Skill Level: