2 replies to this topic

[mhamdi khaled]

Hello every one,

To determine the flash zone temperature of an atmospheric tower, I have plotted the EFV cuve (14.7 psi) and i determined the flash zone hydrocarbon partial pressure (19.62 psi). Now, I want plot the EFV at 19.62 psi.

How i can do it? 

Attached Files

•  EFV curve.xlsx   14.28KB   21 downloads

[Profe]

Hi Mhamdi Khaled

 

For your help:

 

With the flash curve calculated at atmospheric pressure. To plot this EFD at any other pressure take the 50 %vol temperature, and using the vapor pressure curves for hydrocarbons (see Figure 3 .A. 1 in the appendix) read off the temperature at the desired pressure. Draw the EFV curve through this new temperature parallel to the atmospheric curve. The flash zone temperature is the temperature at the % distilled On the partial pressure curve.

According the: Handbook of Petroleum Processing by Jones, Pujadó,  Chapter 3

Attached the graph mentioned above Figure 3.A.1

 

Good luck

Fausto

Edited by Profe, 28 May 2015 - 08:33 AM.

[mhamdi khaled]

Dear Profe,

thanks a lote Sir. Finally, i find the solution  

 

rgrds,

 

Mhmadi khaled