3 replies to this topic

[eag]

Deal all,

 

I would like to calculate the dew point of acidic gases. I am getting fairly enough agreement between ZareNezhad and Verhoff (for SO3) and ZareNezhad and Kiang (for SO2).

 

However, correlations of Neubauer, Muller and Haase do not produce good results (see attached document for reference).

 

I would really appreciate if any one has more information regarding the three correlations mentioned above, as I cannot find anything in the Internet.

 

Thank you very much,

Eva

Attached Files

•  ICRN23.pdf   395.84KB   76 downloads

[jrtailor09]

Dear Eag,

 

Please refer below link for the dew point.

 

http://www.engsoft.c...s_fluegas_e.htm

 

http://ackerandassoc...nt_temperature/

 

Might you will get some reference as reqired.

 

Regards,

JAtin

Edited by jrtailor09, 20 February 2014 - 03:08 AM.

[RockDock]

This is another good reference:

 

http://www.jmcampbel...phase-behavior/

[Art Montemayor]

EAG:

 

I recommend that you be specific in your query.  You state that you want to calculate the dewpoint of acidic gases - but you fail to even mention at what PRESSURE(S).   This is causing some confusion for our members.

 

The reason for the confusion is that you might be analyzing FLUE gases, seeking to avoid the corrosion of carbon steel due to the condensation of dilute sulfur solutions in the flue gas.  This is a common problem when burning high sulfur fuels.

 

You also may be seeking to find the water content of such gases as H₂S and CO₂ at different temperatures and pressures (these would be your acid gases) in order to find the amount of water condensed from them when a hot stream is cooled - such as the effluent out of an amine stripper.  For this case, the John M. Campbell Tip of the Month webpage has excellent information.

 

So, which is it?