1. SO3 which is difficult to be removed by wet method can be removed, and the removal rate of SO3 is very high.2. It can remove hydrocarbons, such as dioxins, metals, such as water, silver and other toxic substances in the waste gas. It is a kind of advanced treatment technology.3. The treated flue gas does not need to be heated before being discharged.4. Compared with the traditional flue gas treatment process of NOx and Sox, it has the advantages of low investment, simple process and small floor area