Condensing curve data for heat exchanger

[Witaszaa]

I have a project to replace rudimentary heat exchangers with a shell-and-tube heat exchanger/condenser. The heat exchanger company has requested some data that I'm not sure how to find or generate. They have asked for "Please provide a minimum nine (9) data point condensing curve for the Light and Heavy Oils showing the physical properties in the table received".

The light and heavy oils in this process are a mix of aromatic hydrocarbons when condensed become creosote. Most of the references on condensing curves are for a single chemical or binary mixture. How do I create a curve for a mixture of many aromatic hydrocarbons?

 

[srfish]

If the operating pressure is low enough in order to treat the mixture like an ideal gas, it is simple. The K-values are vapor pressure/ operating pressure. Otherwise the Wilson equation could be used. It depends on the critical pressure, critical temperature and acentric factor.

 

[georgeverghese]

In Pro/ II - Simsci, there is a heating / cooling curve generator utility program that should fit the bill for this - it also spits out physical props required for HX sizing for each temperature interval or dQ specified by the user.