Desalter electrical load problem
Desalter electrical load problem
(OP)
Hi there all
We ve got 2 series desalter each one has 3 rectifier AC 12000V
After first's one overhaul all three amper meter went from 5-10 to 20-50
Demulsifier, crude oil, temprature didnt change at all
We even checked our water salinity and didnt change too
Electrical guys insist that there is a process thing
With bad dimulsifier our desalter easily over load with 180A
Thx for any tips
We ve got 2 series desalter each one has 3 rectifier AC 12000V
After first's one overhaul all three amper meter went from 5-10 to 20-50
Demulsifier, crude oil, temprature didnt change at all
We even checked our water salinity and didnt change too
Electrical guys insist that there is a process thing
With bad dimulsifier our desalter easily over load with 180A
Thx for any tips





RE: Desalter electrical load problem
Some crude oils require relatively high mixing pressure drop, whereas the others tend to create stabilized emulsions at increased pressure drop across the mixing valve. Maybe you should try adjusting the mixed valve dP and observe the effects in the desalter.
Dejan IVANOVIC
Process Engineer, MSChE
RE: Desalter electrical load problem
Have come across more than one electrostatic desalter / dehydrator where the Operator has given up on this unit and operated it without the grids. Preheating the feed maybe the only way the break these emulsions if your CI injection happy colleagues do not reduce chemical dosing.