Atmospheric Tower Corresion
Atmospheric Tower Corresion
(OP)
Based on the reflux stream temperature, how can I determine if aqueous droplets will form in the tower potentially causing corrosion? Do I check if the reflux temperture is colder than the condensation temperature of water at the tower operating pressure? Or do I use the free water formation temperature of the vapor flow in the top section of the tower?
Using the condensation temperature seems not reasonable for me because condensed water droplets will disolve in the condensed hydrocarbon droplets.
Any opinions/ideas?
Using the condensation temperature seems not reasonable for me because condensed water droplets will disolve in the condensed hydrocarbon droplets.
Any opinions/ideas?





RE: Atmospheric Tower Corresion
RE: Atmospheric Tower Corresion
Calculate ur dew point and adjust ur top temperature..
BOL
atm_chill
RE: Atmospheric Tower Corresion
RE: Atmospheric Tower Corresion
Free water formation normally occurs along the condenser, where corrosion and fouling problems are also usual.
You can contact BETZ or NALCO companies who can give you more advise on the subject.
RE: Atmospheric Tower Corresion
The water presence in this reflux stream is even bigger problem for heat exchanges in this circuit, which develop high pressure drop due to NH4Cl deposition on tube sheets.
RE: Atmospheric Tower Corresion
Please share your experience about tray material. Should we use AISI 304 in the upper portion of crude tower?