1 reply to this topic

[naik rakib]

Hi all friends:

It is my request to all members to help me for energy balance on multicomponent distillation.

I have mainly problem of hypothetical components for their Cp and enthalphy.

kindly share any exelsheet or other document on this topic that help me.

Naik Muhammad

B.E Polymer & Petrochemical Engineering.

[acer_asd]

Hi all friends:

It is my request to all members to help me for energy balance on multicomponent distillation.

I have mainly problem of hypothetical components for their Cp and enthalphy.

kindly share any exelsheet or other document on this topic that help me.

Naik Muhammad

B.E Polymer & Petrochemical Engineering.

Dear Naik Muhammad

If you provide MORE DETAILS then people may be able help you.

First, i want to know, when you say multicomponent then how many components you are talking about, 5-10, 100-200 or thousands.

Since you mentioned about hypothetical components then i assume that you are talking about at least 100 components. I also assume that you have compositions of lumped components like C4s, C5s in case of refinery distillation. If it is so, then you can assume some components in that range, assume some distribution and take weighted average of Cp and enthalpies. For example if you have composition of C4s then you can assume that there is n-butane, butene, isobutane in it and distribution is 50%, 30% and 20% respectively.

If you have thousands of components then psuedocomponents can be generated based on TBP (true boiling point) cuts (as aspen plus does) and there are empirical correlations to generate the average properties. I think, you can find these correlation in "API technical data book" but i am not sure.

I again ask you to provide more detail.

Hope this helps you in this project

have a nice day