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Desalter Vapor Pressure And Bubble Point Calculation In Hysys


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#1 rsraza

rsraza

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Posted 04 August 2020 - 05:35 AM

I am in process of doing a test run for a lighter crude processing at our refinery.

 

I am studying it by a hysys simulation model and while studying desalter and preheat train We have observed vapor phase at lower temperatures.

I am working with peng robinson fluid package now and I need to know which is the recommended fluid package for crude & water mixture vapor pressure studies in Hysys  and Pro-II.

 

Thanks  



#2 PaoloPemi

PaoloPemi

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Posted 04 August 2020 - 11:55 AM

do you mean that Peng Robinson predicts a vapor phase at low temperatures ?

According my experience Peng Robinson works well for hydrocarbons,

however for mixtures including large amounts of water , salts etc. there are more specific models,

for example,depending from application, EOS with complex mixing rules , models with support for electrolytes etc.

You may consider different options.






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