Depropanizer Tower Inclination 2

[Jency]

Are there any criteria for the dip angle of Valved Tray Distillation Tower Design? What is the tolerable limit which still allowing the tower working normally?

Our case is that a 90ft high 36 traies depropanizer tower is inclined a little bit. The head of the tower moved 3in after it is built on site. Is this will be the problem for the normal operating or not a concern at all?

Thanks for your help!

 

[Longinthetooth]

Ludwig gives tray tolerances as follows. (maximum tolerable slope) Up to 3 ft. dia +/- 1/8"; 3 ft to 5 ft dia. +/- 3/16"; Over 5 ft. dia. +/1 1/4". Kister concurrs.

 

[Longinthetooth]

I forgot to add that, although I have not done the math, it sounds as if you are in trouble. Better consult the tray vendor ASAP.

Regards,

 

[reena1957]

As per calculation, it can go upto 4.5 inches. So no worry!!

 

[25362]

One source says that for towers with diameters larger than 5 ft an incline of 3 degrees may result in a loss of liquid/vapor mass transfer of about 20%.

 

[Jency]

Thanks guys.