How to calculate the saturated flow volume of natural gas in scf 1

[jjll]

I would like to know calculation for the saturated flow volume in natural gas (scf).

I'm not sure, it should have water vapor factor or not.

and I don't know how to water vapor equation.

Please help to answer me.

thank you very much

 

[chemjock]

If you don't have a simulator, use y (mole frac water)= vapor pressure water @ T / operating pressure

 

[dcasto]

lb H2O/MMSCF =(10^(3.5551-0.94283*LOG(PSIG+15)+0.01576*(Temp in F-31)))

 

[chicopee]

If you have defined SCF, and know your temperature,pressure and quality, why can you not use a phase diagram of natural gas to find the specific volume at SCF?