3 replies to this topic

[amrokasht]

Hello all

 

I want to simulate a helium recovery plant using aspen hysys. However, I am a bit confused on which fluid package I should use. The recovery plant will have the following components: helium, nitrogen, methane, argon, oxygen, hydrogen, water, neon, carbon monoxide, carbon dioxide and lube oil. The pressure range from 1 bar to 30 bar in the process and the temperature range from (70 deg C) to (4 K). In the process we will have cryogenic liquids (liquid helium as well). So which fluid package is most suitable ?

 

Thanks,

[Ajay S. Satpute]

Hi,

 

Refer below link.

http://www.cheresour...ion/#entry85425

 

Regards.

 

Ajay S. Satpute

[Bodhisatya]

Generally Cryogenic processes are best solved by Peng -Robinson method.

 

Requesting you to share the details of this Helium recovery Plant.Process Flow diagram along with Pressure and Temperature flowrates,so that I can also try a hand on this Simulation.

 

Hope it's ok with you.

 

Bodhisatya. 

[PingPong]

amrokasht, what you want to do is not standard stuff.

 

You should use the thermo package that best reproduces the properties of helium, such as vapor pressure, enthalpy, et cetera.

Moreover the thermo package should give good results regarding He/H₂ separation, because that will be the most difficult separation in your mixture.

 

So you need to do some literature search (google is your best friend) to obtain helium data, and then compare them with the results of the thermo packages in your simulator.

I suggest you evaluate GERG2008, BWRS, PR and modifications thereof (if available in your simulator).

You may need to tweak the binary interaction parameter for He/H₂ to best match any He/H₂ equilibrium literature data that you may find.