The oxidizing agent improves the reaction efficiency of SO2 to SO3 conversion and sulfite to more stable sulfate conversion, and the polymer activator can reduce the reaction temperature of these two processes, while some groups of the polymer can directly capture SO2 to generate organic sulfate.

Wet desulfurization is a desulfurization technology that uses liquid absorbers such as alkaline solutions to wash the tail gas to remove SO2 from the tail gas, and the desulfurization efficiency can reach about 95%, and many cement plants in China have adopted wet desulfurization technology.