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Homework Help: Why not CO2?

  1. Dec 10, 2009 #1
    In large scale preparation of nitrogen from liquefied air why do we purify the air from carbon dioxide ?
    what problem does it create?
    I would be happy if anyone replies.
    Thank you!
  2. jcsd
  3. Dec 10, 2009 #2


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    Science Advisor
    Homework Helper

    What does CO2 do at about -80C ?
  4. Dec 12, 2009 #3
    Thanks !!
    I have found it out!
  5. Dec 12, 2009 #4


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    Staff: Mentor

    For the same reason we first dry it out :smile:

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