2 replies to this topic

[Bal]

Hello,

 

How can I get the partial pressure of a gas in a real gas mixture in HYSYS? is there a quick way other than going through the Z factor part?

 

Thanks,

 

 

 

[Bobby Strain]

No matter if the gas is real or imaginary the partial pressure is simply the total pressure X mol fraction component (P_total*y_i). Presuming you know both.

 

Bobby

[serra]

perhaps partial pressure of a gas may be ambiguous,

you may wish to define the specific application,

for example, for phase equilibria you may need the fugacity,

then, for vapor+liquid fg(i)*Y(i) = fl(i)*X(i)

and equivalent expressions for additional phases,

some simulators export these values,

(I have Prode Properties which exports fugacities plus derivatives vs. W, T, P)