Color of acidic water in the catalytic unit
Thread Content
Recently, the acidic water at the bottom of the crude gasoline tank in my catalytic unit has turned yellow. Is this normal? What color is it in your case?
It should be greenish; is yellow the ferric oxide resulting from rusted pipelines?
After placing it, check what color it turns out to be. If it doesn’t turn black, there’s no major problem; if it does turn black, it is recommended to check the Fe ion content.
If it turns black, should I check the iron ion level? Our current iron ion level is below 3
Fe3+ appears yellow, while Fe2+ appears black; first check whether it is Fe ions, and then determine the rest~
Currently, it is generally required that the FE ion content in the acidic water at the top of the tower be less than 1 ppm.
Do you have water injection points at the top of the tower’s vaporization line or before the air cooling? Is it acidic water that’s being referred to? What is the pH value of acidic water?
There is a water injection point; acidic water from the crude gasoline tank is injected before the heat exchanger where the oil and gas at the top of the distillation tower exchange heat with hot water
I remember that our samples are usually green