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K Value For Helium For Vle Calculations


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#1 smuk

smuk

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Posted 30 December 2018 - 08:32 AM

Hello all

 

I am trying to determine K value for helium when in admixture with light hydrocarbons (like natural gas). API Technical Data Book covers many non hydrocarbon gases, but helium is not covered. Can anyone help me with some reference. 

 

Thanks

 

smuk



#2 breizh

breizh

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Posted 30 December 2018 - 06:58 PM

https://www.questcon...o_diagrams.html

 

you may consider this resource !

 

Breizh



#3 smuk

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Posted 02 January 2019 - 02:42 AM

Thanks for your suggestion. I went through the resource, but unable to find K values for VLE calculations for Helium. Could you advise where I could this from the resource.

 

Thanks

 

smuk



#4 breizh

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Posted 02 January 2019 - 03:01 AM

Hi,

It should be other thermodynamic properties .

Good luck

Breizh



#5 PingPong

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Posted 02 January 2019 - 06:14 AM

Smuk, note that Quest Consultants website uses Peng-Robinson equation of state, as is clearly stated in the text.

 

If you have access to a process simulator you could alternatively use BWR equation of state that should be more accurate as it uses more constants that were moreover determined by fitting to experiments, while PR only uses constants based on pc , Tc and acentric factor of each component in the mixture.






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