What is the standard for determining how much packing to use in a distillation tower?
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What is the standard for determining how much packing to use in a distillation tower? After the maintenance of the distillation tower in my workshop, the equipment technician added more than one cubic meter of packing; however, operations showed that something was not right. Could it be that using too much packing has an impact?
With this process established, if the equipment drawings specify requirements for the packing height and packing bulk density, these must not be altered arbitrarily.
The abnormalities caused by an excessive amount of packing in the distillation tower are likely due to too high a pressure drop, unstable operating pressure, and consequently unstable temperature. You can be more detailed
This is manifested as a low top temperature and large fluctuations in the bottom liquid level
For maintenance, it is sufficient to replace the packing with one of the same model and specifications as specified in the original drawings. First, ensure the accuracy of the packing model, and then pay attention to proper installation; there is generally no issue with the height, as any problem with the height would prevent the internal components from being installed
If the packing height is greater than the original design, the total pressure drop across the tower increases, the pressure at the top of the tower decreases, and accordingly the temperature also decreases.
Is the filler still the previous model?
Using too much will definitely have an impact; the resistance increases, and the temperature will surely rise
:'(The distillation column here is driving me crazy as well; it’s been half a year and I’m exhausted from dealing with its issues. By increasing the packing height, there’s a risk of flooding, with liquid accumulating inside the column, which is why the liquid level at the bottom of the column isn’t stable. The upper part of the column becomes higher, resulting in a higher purity of the light components, and that surely leads to a decrease in the top temperature.) Look up more information on the tower internals