Dear fellow engineers,
I am working on the rating of a Recycle EDC (ethylene dichloride) Column for a VCM expansion project.
I rated the column in KG Tower.
(1) I assumed there is no foaming and used system factor of 1
(2) I got warnings for the dry tray pressure drop in the top section of the tower, around 4.9 mmHg. The highest total tray pressure drop was around 12mmHg, though no warnings from KG Tower. The original pressure drop for the tower used was 5 psi. Now I estimated it would be at least 10 psi. The op. pressure at the condenser was 11psig.
(3) The downcomer flooding is around 90% in the bottom section of the tower
I got the feeling this tower is not going to perform well without modifications. I want to get your opinion about this tower.
Many thanks,
Leo