Clarification on Liquefaction of Hydrogen Gas

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SUMMARY

The liquefaction of hydrogen gas involves cooling the gas to temperatures between 20-30K under high pressure to achieve condensation. The process typically includes initially lowering the temperature to 70K, followed by expansion to further reduce the temperature. Finally, the hydrogen is pressurized to complete the liquefaction process. This method is essential for industrial applications where liquid hydrogen is required.

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Sheissy
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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!
 
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That was very helpful, thanks!
 

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