Dear Sir,
I wanted to know what all factors are responsible for Water Dew Point temp in CDU Overhead circuit.
This has lot of significance when we talk about overhead system corrosion in CDU.
As per my knowledge, Overhead Vapour Feed Composition , Operating pressure and partial pressure of water vapor are responsible factors for Dew Point Temperature . Out of this, I think , partial pressure of water Vapour can be varied by changing Stripping Strip Flowrate .
So i wanted to know how to force Water dew point earlier in CDU circuit to minimize the risk of corrosion ??
as we can not vary operating pressure and feed composition also.
How we can change water dew point in overhead CDU ?
Also I know this water dew point in CDU overhead is not same as Pure Water Dew Point Temp as heavier hydrocarbons present in mixture will increase water dew point and also higher operating pressure increases water dew point also.
Correct me if my understanding of water dew point is completely wrong here.
Thanks.