In the calculations for atmospheric distillation of crude oil, when determining the total reflux heat and the gas-liquid phase loads, how is the enthalpy value of petroleum fractions determined?
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I am working on my graduation project, whose topic is the design of a atmospheric distillation column for crude oil. When calculating the total reflux heat and the gas-liquid load of the entire column, I’m not sure how to determine the enthalpy values of each fraction How are the density, temperature, and enthalpy of internal recirculation determined? And when is the enthalpy value in the vapor phase, and when is it in the liquid phase? (The petroleum refining textbooks only mention the use of interpolation, but I don’t know exactly how to carry it out.) Those who are familiar with this topic, please share your knowledge! It’s quite urgent, thanks!
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