Abstract: Under the background of increasingly stringent environmental protection requirements, the emission of harmful gases such as nitrogen oxides produced in industrial production needs to be tackled urgently. Ammonia selective catalytic reduction technology has become a common method for industrial flue gas denitrification due to its efficient denitrification performance. However, the existing catalysts are insufficient in terms of cost and operating temperature window. At the same time, a large amount of solid wastes such as red mud, blast furnace slag and fly ash are rich in metal elements and silicon-aluminum elements, which can be used as active components and precursor sources for the preparation of catalysts. In this paper, the preparation techniques and anti-poisoning methods of three kinds of catalysts, such as activated, supported metal oxide, and synthetic molecular sieve, are analyzed in depth, and the follow-up research trends are predicted. The aim is to promote the resource utilization of solid waste and develop efficient denitration catalysts.
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