Spray tower (spray tower) is used for gas absorption of the simplest equipment, in the spray tower, the liquid is dispersed phase, the gas is a continuous phase, generally gas-liquid ratio is small, suitable for very fast rapid chemical reaction absorption process.

A spray tower includes an empty tower a set of spray liquid nozzles. Its structure is shown in Figure 5-7. Generally, the gas enters the bottom of the tower passes upward through the whole equipment after being evenly distributed by the gas distribution system. at the same time by one more levels of nozzles spray liquid, gas liquid droplets countercurrent contact, purified gas demisting the top of the tower after discharge.