The acidic water in the atmospheric pressure tower top reflux tank contains 600 PPM of oil; what methods can be used to reduce this oil content?
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It’s far above the limit; the specified value is 50PPM. Does anyone have any good solutions? I would appreciate your advice.
First, check the level control to see if it is caused by a discrepancy between the actual level and that shown on the DCS. First, control the boundary level at an appropriate high level.
Add a phase shifter! It’s possible that the phase separation control in your reflux tank isn’t properly managed!
Calculate the residence time – is it a bit too short? Generally, oil in the overhead water is not something that occurs often. Let’s check whether there are issues with the chemicals injected at the top of the tower, as well as whether the site’s measurement values are accurate! ! ! !
I’ve checked it all; there are no problems. Are there any other reasons?
Is there a way to address the issue of oil in water from the operation of atmospheric pressure towers?
Check if the operating conditions have changed