Behavior of Liquid Nitrogen at 3000psi & 6000psi

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Liquid nitrogen cannot exist at 1 atm pressure and 20°C, as it requires a critical pressure of 34 atm to remain liquefied. At 3000 psi, nitrogen behaves as a gas with a compressibility factor close to ideal, while at 6000 psi, it remains a gas but is more influenced by molecular interactions. The phase diagram for nitrogen indicates that under high pressure, it may transition to a liquid state, but solidification is unlikely at these pressures. High-pressure nitrogen systems are used in various applications, including cryogenic pumping, which can handle pressures up to 10,000 psi. Understanding the behavior of nitrogen at these pressures is crucial for applications in industrial and scientific settings.
SoloRider
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hi all
How would nitrogen behave at 3000psi? or 6000psi?
assuming it starts at liquid form and at 1 atms pressure heated to 20 Celsius.

thank you
 
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SoloRider said:
hi all
How would nitrogen behave at 3000psi? or 6000psi?
assuming it starts at liquid form and at 1 atms pressure heated to 20 Celsius.

thank you

Only an experimenter can answer your question.

However , critical pressure at which Nitrogen can be liquefied is 34 atms. Critical temperature to liquefy Nitrogen is 140 oC . Both these conditions must be simultaneously met to properly liquefy Nitrogen. So you cannot get liquid form of Nitrogen at 1 atm pressure heated to 20 Celsius.

3000 or 6000 psi is too big the pressure ! :eek:

I think definitely this pressure will convert Nitrogen to liquid or probably solid even.
 
SoloRider said:
hi all
How would nitrogen behave at 3000psi? or 6000psi?
assuming it starts at liquid form and at 1 atms pressure heated to 20 Celsius.

thank you

Google for "phase diagram for nitrogen" or some such, and you'll find diagrams such asthe following: http://www.wolframalpha.com/input/?i=nitrogen+phase+diagram

You may have to do some conversion of units to get your answer.
 
sankalpmittal, i don't think it will turn to solid since i found a few companies using high nitrogen pressure for different uses such as this machine:
http://www.jereh-pe.com/english/products/nitrogen-pump-skid.shtm#

Nugatory, your link looks promising thank you. What is the difference between "phase diagram" and "vapor pressure rate"?
 
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Nitrogen at 20 C and 3000 psi has a compressibility factor of 1.06, so it's still very close to being an ideal gas. At 6000 psi, the compressibility factor is 1.26 so it's still a gas but is much more affected by the local molecular interactions.
SoloRider said:
sankalpmittal, i don't think it will turn to solid since i found a few companies using high nitrogen pressure for different uses such as this machine:
http://www.jereh-pe.com/english/products/nitrogen-pump-skid.shtm#
The nitrogen pumper you reference is a cryogenic, reciprocating pump mounted on a trailer that pumps low pressure, cryogenic liquid nitrogen from roughly 100 psi to the higher pressure. Depending on the pump, I've seen them go up to 10,000 psi or so. Once through the discharge of the pump, the cryogenic fluid is heated to ambient temperature through a number of means, and thrust down inside a well to fracture the rock.
 
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