water content in saturated natural gas

[vnipitransgaz]

I am looking for water content in saturated natural gas at low temperatures (below minus 50 deg.C or 60 deg.F)and medium pressure (10-100 bar).
Usual books and correlations have published data above this temperature.
Ñan somebody advise me the equation or tables on this issue?

 

[22082002]

If you have simulation software available, you can try it. or give the gas compostion, and I will try ( next week)..

Regards,
SAA

 

[vnipitransgaz]

Oh.
22082002 - Thanks a lot.
My question was born due to a significant difference between water content calculation results by different simulators.
In different time I tried to use HYSYS and GasCondOil (Ukrainian simulator). Now my prospective vendor has sent to me the same cases PROSIM calculated.
Twice or more difference.
Thus- same difference in amounts of the dessicant or inhibitors.
Ñonsequently I am interesting to know- what program is closest to reality? (Or not very far from )
And first step for that- What is the theoretical basis?
Thanks again.

 

[22082002]

It is very important to use appropriate thermodynamics. I suggest you to check among GPSA,SRK-modified by Kabadi... and SRK.
In the simulation package help, you can get details and which will be applicable in which range.

I feel SRK will be good enough.Where do you wish to use the information obtained from this?

Regards,
SAA

 

[vnipitransgaz]

Thanks,
I will try to find and check.
To check what simulator is closest to theory, than might be will use in natural gas dehydration with cold methanol or adsorbtion (upstream of LPG recovery unit).
Thanks again.