On the value of the flooding rate for the newly designed packed tower
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I would like to ask everyone: when determining the diameter of a newly designed packed tower, it is necessary to keep the flooding rate within a certain range. What should be this appropriate range for the flooding rate? Or what is the range of the flooding rate for a properly operating packed tower? Will using a lower speckle density affect the separation efficiency?
The speckle density can range from 40% to 70%, depending on the properties of the material system. Too low or too high a speckle rate can both reduce separation efficiency.
It depends on the type of filler and the extent to which capacity will be expanded in the future. For high-efficiency fillers, a lower value should be chosen for the scattering rate; fillers such as 250Y can have a scattering rate of 40–50% (which represents the maximum value). If capacity expansion is planned in the future, it is better to opt for a lower value.