The graphite Pall ring packing not only increases the mechanical strength of the packing, but also makes the main contact between the fillers and the point contact, which not only increases the gap between the fillers, but also becomes a collection and dispersion of the liquid flowing along the surface of the filler. The point can promote the surface renewal of the liquid film, which is beneficial to the improvement of mass transfer efficiency.
The processing capacity of the graphite Pall ring packing is much larger than that of the Raschig ring. If it is under the same processing capacity, its pressure can be reduced to less than half, and at the same time its mass transfer efficiency can be increased by about 20%. .