Pressure drop in structured packing towers
Thread Content
How is the pressure drop of structured packing calculated?
Check the \"Application Manual for New Types of Structured Packing in Industrial Towers\"
Each type of packing has a pressure drop measured under a specific reference system; of course, this can only be used as a reference value. It is usually expressed in pa/m. The calculation is simply done by multiplying the length of packing used in each section by the pressure drop of that packing. Of course, it is also necessary to take into account the operating pressure drop of the distributor, as well as various operational conditions within the tower. Additionally, it depends on what substances are to be separated
Regular packing is now generally calculated using software; the most commonly used software is SULPAC3.0. Typically, the pressure drop per meter for such packing is less than 300 PA/m
You can ask the supplier or the process package provider directly; their answers will be more reliable
The calculation of packing pressure drop is based on the operating gas and liquid load, the type of packing, and the porosity of the packing. For simplicity, software can be used for this calculation; well, it’s better not to mention that!
Like what, then? Just say it
I wonder if it is through this pressure drop that the pressure difference between the top and bottom of the tower is determined? Further, use it to determine the temperature difference between the top and bottom of the tower; this has been a problem that has troubled me for a long time. I would appreciate your guidance
The packing generates a pressure drop, and the distributor also creates a pressure drop; pressure is related to temperature, and the temperature at the bottom of the tower can be simulated using the total pressure drop across the tower.
However, there is no direct relationship between temperature difference and pressure; it also depends on the composition of the material. The higher the purity of the heavy components at the bottom of the tower, the higher the temperature.
Currently available KG-tower options include Sulzer’s Sulpak and Sulcol series of software; be sure to pay attention to copyright issues!