Abstract:
Due to the excellent mechanical properties and chemical stability, high temperature resistant nonwoven materials are combined with catalytic desorption technology to prepare catalytic filter media, and play a crucial role in treating pollutants in industrial high-temperature smoke and dust. The research progress of high temperature resistant nonwoven filtration materials in removing flue gas pollutants is systematically reviewed in this work. The advantages and disadvantages of catalytic filter materials are introduced concerning different substrate selections and preparation methods. The desorption mechanisms are clarified for typical pollutants including nitrogen oxides (NO
x), dioxins, and mercury. The impact of metal components and catalyst structures on the performance of catalytic filters is briefly outlined. Finally, the potential development directions for catalytic filter materials are prospected.