I am modelling a case where petroleum products (gasoline, diesel) are to be handled together with Ethanol. I have created a fluid file (.mfl) with streams defined as gasoline, diesel and Ethanol in Multiflash software. I have used compositional tracking in the model. When the model is run, we witness abnormal behavior of fluid density (ROL) at the points where hydrocarbons (gasoline, diesel) are in contact.
I think this is due to the fact that hydrocarbons and Ethanol are different types of substances and thus a proper equation of state (EoS) and thermodynamic model needs to be selected while preparing fluid files (in Multiflash infochem software) that can handle both hydrocarbons & Ethanol (a polar substance). Currently I am using EoS as 'Cubic' and Thermodynamic model as 'CPA-infochem' but the results are not good.
Could anyone suggest a better combination of EoS and Thermodynamic model to be used in Multiflash software to prepare fluid files?
- Badges
- Science method