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Can perlite adsorb hydrogen?

  1. Feb 23, 2013 #1

    Q_Goest

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    Cryogenic liquid hydrogen tanks are common in industry. These tanks have an inner vessel and an outer vessel. Between the two, the space is sometimes filled with perlite and a vacuum pulled to reduce heat transfer to a minimum to prevent boiling of the liquid hydrogen.

    This is the same volcanic rock used in other applications but it is dried in an oven as described here:
    Reference: http://archives.njit.edu/vol01/etd/1950s/1957/njit-etd1957-003/njit-etd1957-003.pdf

    Table 1 in this reference is on page 5 and shows typical chemical composition.

    Is it possible that this material in the state described (used as vacuum insulation) could adsorb hydrogen gas? Even a small amount of hydrogen?
     
  2. jcsd
  3. Mar 2, 2013 #2

    Q_Goest

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    For the record, I asked a friend of mine and got this response:
    Feel free to comment.
     
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