Ceramic lessing Rings are a packing designed basically from the raschig ring with partitions inside to increase the surface and enhance the transfer efficiency. It is usually used extensively for the supporting packing at the bottom of tower. Ceramic lessing ring has high density and excellent heat and acid resistance and it withstands the corrosion of various inorganic acid, organic acid and organic solvents except fo hydrofluoric acid. Ceramic Lessing Ring can be used in the drying columns, absorbing columns, cooling towers, scrubbing towers in chemical industry, metallurgy industry, coal gas industry, oxygen producing industry.Meanwhile,Owing to ceramic Lessing ring’s wavy type edge can form many storage space,It is very easy to keep thermal energy a long time. In the process of heat absorption and release, it has not only reduce power cosumption, but also sustain RTO system thermal stabiblity. So Ceramic lessing one ring as an important heat transfer media, also used in the heat transfer system, regenerative oxidizers system (RTO ).