Emission Control of Toluene in Iron Ore Sintering Using Catalytic Oxidation Technology: A Critical Review

Iron ore sintering flue gas containing large amounts of volatile organic compounds (VOCs) can form secondary photochemical smog and aerosols, thus posing a serious threat to human health the ecological environment. Catalytic combustion technology has been considered as one most prospective strategies for VOC elimination. This paper focuses on review studies catalytic removal typical VOCs (toluene) transition metal oxide catalysts in recent years, with advances single oxides, multi-oxide composites, supported catalysts. Firstly, activities series toluene degradation are evaluated compared, leading an analysis key indicators that significantly affect efficiency degradation. Secondly, reaction pathway mechanism systematically introduced. Considering site space investment cost, conversion pollutants harmless substances using existing selective reduction (SCR) systems studied considerable effort. Based current development simultaneous multi-pollutant elimination technology, interaction between NH3-SCR oxidation surface is discussed detail. Finally, views scientific issues challenges faced, well outlook future, presented. overview expected provide guide design industrial application NO/VOC