Making liquid nitrogen from air

  • Thread starter imsmooth
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  • #1
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Main Question or Discussion Point

Has anyone done this as a DIY project? I want to use a refrigerator compressor with counter-current coils.
 

Answers and Replies

  • #2
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The foreign wikipedia claims that the Linde method uses a pressure of 200bar. I doubt, that your refrigerator compressor can produce that.
 
  • #3
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It's infinitely easier to just buy it from a commerical vendor - it's really cheap. Any DIY attempt would likely also make LOX, which could be very dangerous.
 
  • #4
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Has anyone done this as a DIY project? I want to use a refrigerator compressor with counter-current coils.
what are counter-current coils? what would they do?

i know that compressing a gas will cause it to liquefy, depending on temperature, but i don't know how electrical/magnetic fields come into play.
 
  • #5
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what are counter-current coils? what would they do?

i know that compressing a gas will cause it to liquefy, depending on temperature, but i don't know how electrical/magnetic fields come into play.
he means a countercurrent heat exchanger i.e. you have 2 plug flow reactors one in another, and on the outside one the fluid flows 1 way, the inside one you have the fluid flows another way.
 

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