Clarification on Liquefaction of Hydrogen Gas

  1. Apr 11, 2013 #1
    Hi there,

    I've been looking around on the net for some information on how Hydrogen gas is converted to liquid in industry. However, I haven't had too much success. If anyone could help me understand the basic process I would be very grateful.

    What I currently know is that the Hydrogen needs to be at 20-30K and a high pressure to condense. I also read something about lowering the temperature of the Hydrogen to 70K then expanding it to reduce its temperature further. I assume this would be followed by pressurizing the Hydrogen to finish this process?

    Thanks a ton!
  2. jcsd
  3. Apr 12, 2013 #2


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    Try this.
  4. Apr 12, 2013 #3
    That was very helpful, thanks!
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