Selective Catalytic Reduction (SCR) Catalyst is mainly used in industrial processes that involve high levels of fly ash which in sintering, steel mills, coal fired boiler plants and incinerator. It can simultaneously treat nitrogen oxides (NOx, including nitric oxide and nitrogen dioxide) and dioxin compounds (DXN, including PCDD and PCDF) present in the flue gases during the process; preventing the emission of these toxic gases into the atmosphere;  reducing environmental pollution and protecting human health. The SCR Catalyst has a good removal efficiency for both pollutants, with efficiency rate greater than 80%.