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[ankitg009]

Dear friends,

 

I want to install a level transmitter and indicator on a reboiler so as to indicate the level of liquid inside it. The operating temperature of reboiler is 450 deg.C and the feed is heavy oil (C15-C40+). I am in talks with vendor for the level transmitter, they are suggesting Guided radar type LT for the same. However, they need the value of dielectric constant of the oil at 450 deg.C. 

 

How can I evaluate dielectric constant at 450 deg.C? I have done gone through literature values, most give dielectric values at room temperature (2).

 

Also, in the reboiler the lighter fraction of oil will be in the vapor form and the heavier fraction will be in liquid form.

 

How to go about it?

 

Any assistance in this regard will be deeply appreciated.

 

Regards,

Ankit