There are many types of tower vessel packing tower equipment. Tower equipment is one of the most important equipment in chemical, petrochemical and refining production. It can make gas-liquid or liquid-liquid two-phase contact closely and achieve the purpose of mass transfer and heat transfer between phases. Common unit operations that can be completed in tower equipment include distillation, absorption, desorption, extraction, etc. In addition, the cooling and recovery of industrial gas, wet purification and drying of gas, as well as gas-liquid two-phase mass transfer and heat transfer functions.

The separation performance of structured packing tower depends on the internals, i.e. packing, distributor, collector, etc. At the same time, it also depends on many parameters, such as gas load, liquid load, material properties, operating pressure, wettability of packing and uneven liquid distribution. Up to now, the separation performance of the tower can not be accurately calculated by the geometry of the packing. It is necessary to measure the accurate data by the theory of the packing tower and the test tower under different conditions. Users can determine the size of the tower and the height of the required packing according to the first level of approximation.