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Suitable Material of Construction for Hydrogen Compressors

Suitable Material of Construction for Hydrogen Compressors

Suitable Material of Construction for Hydrogen Compressors

Dear All,

I need your feedback regarding material selection typically followed for hydrogen compression unit which operates at temperature range from 65 C to 180 C (downstream compressor discharge) and pressure ranges from 1 barg (unit suction pressure) to 200 barg (unit outlet discharge pressure). I understand H2 embrittlement issues are foreseen for low allow steel, hence advising from your relevant expertise on similar installations and their selected Material of construction


RE: Suitable Material of Construction for Hydrogen Compressors

Seesaw ....

You seem to go back and forth on your questions .... you teeter from questions that are far too broad to questions far too specific.

Are you asking for all of the specifics in material selection for a complex machine ? .... A bit arrogant and broad, don't you think ?

ELLIOT TURBO has been a research leader in hydrogen compression for decades ..... They have been meeting international industry needs and offering high performance turbomachinery. They have spent many millions of US dollars in American research and development and have earned a sterling reputation.

They have never been interested in making a cheap knock-off or offereing an inferior replica of someone else's work

Read more about ELLIOT TURBO a Member of the ELLIOT GROUP and hydrogen compression here:



Sr. Process Engineer

RE: Suitable Material of Construction for Hydrogen Compressors

Hi, I was clearly enquiring on Dry Hydrogen compression applications. Thanks for the Elliot Turbo info. I recommend avoiding bullying words such as Seesaw and arrogant.

RE: Suitable Material of Construction for Hydrogen Compressors

You need to hire one of the few engineering companies with long experience building such equipment.
There are a lot of papers from NASA and the Compressed Gas Inst on this topic.
Not to mention all of the industries that run H2 systems all of the time.
Like most real applications this is all about tradeoffs.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: Suitable Material of Construction for Hydrogen Compressors

I dont have the expertise for this, but you must also state the impurities / other components in this "dry hydrogen gas", as it is often these impurities that may influence material selection also.
H2 compressors (recip mostly) going up to 200barg are often seen in refineries with hydrotreating units, but in these applications, contaminants are chlorides, hydrocarbons, H2S, CO, CO2 etc. Talk to your downstream colleagues if they can help also.

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