Distillaton Valve Tray Turndown Ratio
Distillaton Valve Tray Turndown Ratio
(OP)
How can I determine the trundown ratio on a distillation tower that is equiped with valve trays?
The answer of this question should help me to know at what feed rate (the minimum) the tower is expected to have hard time controlling the spec of the products.
thank you very much.
The answer of this question should help me to know at what feed rate (the minimum) the tower is expected to have hard time controlling the spec of the products.
thank you very much.





RE: Distillaton Valve Tray Turndown Ratio
These programms can usually be downloaded free of charge at the manufacturer's website, but often requires registration with an email adress and/or other contact details.
I suggest visiting www.sulzer.com first of all, as their software is very good. It also has some generalized and approximate data on other manufacturers trays and goes by the name "sultray". The Koch-Glitsch software is very much comparable and is called "KGTower".
these softwares just tell you the minimum liquid/vapor rate neccessary to keep the column in operation, not if you can still reach specifications without adjusting heat duties and/or reflux rates.
hth,
chris
RE: Distillaton Valve Tray Turndown Ratio
APV Distill. Handbook '98 (Google), may be worhty.
RE: Distillaton Valve Tray Turndown Ratio