The issue of the equal plate height of the filler

The term \"plate height\" refers to the height of a packing layer corresponding to one theoretical plate, which is 0.9 meters. This has nothing to do with the type of material being vaporized; the exact number of theoretical plates required for separation is determined through calculations. The actual number of plates is then calculated as 0.5 to 0.7 times the number of theoretical plates. The total height of the packing layer is obtained by multiplying the number of theoretical plates by 0.9 meters. However, each section of the packing layer should not be higher than 6 meters – the reason for this is that an increase in the packing layer height leads to severe channeling effects between the gas and liquid phases, requiring another round of gas-liquid distribution. So the DN50 packing you mentioned also doesn’t come in this model; it is usually a Y-type corrugated packing, available in sizes of 125, 250, 500, 750, 1000, etc. In other words, when one cubic meter of such packing is fully unfolded into flat sheets, the area of those sheets is 125, 250, 750 square meters, and so on.

The equivalent plate height for various fillers varies; there are theoretical values for this, but each filler manufacturer has its own empirical limits regarding the minimum acceptable value. It is up to each company to determine what the minimum value should be, and it’s fine to use the standard theoretical values. Professional manufacturers will use values that are higher than these, as competition exists – those who can use less filler will have a price advantage. You don’t need to worry too much about these details; it’s sufficient to stick to the empirical values as a conservative approach. Once again, it has nothing to do with what you steam