[betty]

here my qustion :


If I have condenser with  shell side : propylene vapor
                                   tube side: cooling water

where should I put temperature controller (TC) to get regulation circuit..
..

I attacged An Excel with condesor drawing

http://www.up.6y6y.com/uploads/62fb6176f2.rar

[eugenedakin]

Hello betty,

Thanks for providing a drawing (this makes it MUCH easier to answer your question).

I have some foolish assumptions before I answer your question:
1) I assume the priority of this project is propylene liquid production
2) I assume the cooling water supply is pumping at a rate to meet the thermal demands of propylene condensation

I would place the temperature controller just barely above the condensed liquid in the recycled gas condenser. This value MUST be lower than the vapour point that you wish to keep. If the temperature approaches equilibrium or is higher than the vapour point, you are now producing vapour from the liquid.

I hope this helps. Do you have any other suggestions for a different position?

Eugene

[shahab mataji]

restriction of cooling water should be avoide.
consider by-pass line around c3-- and tc valve on it.

[typhoon2028]

I cannot open the link, my work blocks the site.

How come the product is passing throught the shell side and not the tube side?