Catalytic coating filter material is an air filter material used for flue gas treatment. The flue gas emitted not only contains a large amount of dust, but also contains a large amount of harmful gases, such as sulfur dioxide and nitrogen oxides, depending on the product. The previous filter material can only filter dust, but there is no way to deal with harmful gases. At present, the United States, Japan and other countries are stepping up research on the comprehensive treatment of dust and other harmful components in exhaust gas, and have developed new technologies for catalyst-coated bag filtration. The surface of the filter cloth is coated with a denitrification catalyst to make it have both dust removal and denitrification functions. If it is used together with an alkaline absorbent, it can also remove acid gases.
