Comparison of low-temperature catalytic activity and H2O/SO2 resistance of the Ce-Mn/TiO2 NH3-SCR catalysts prepared by the reverse co-precipitation, co-precipitation and impregnation method

Preparation of high temperature NH3-SCR catalysts with carbonate as precursors by ball milling method

“…The catalyst prepared by the ball milling method using Ce(OH) 4 and La(OH) 3 instead of Ce 2 (CO 3 ) 3 and La 2 (CO 3 ) 3 as raw materials was denoted as BH-10Ce–2La/TiO 2 . The catalysts prepared by the impregnation method 7 and co-precipitation method 11 according to the literature were labeled as IN-10Ce–2La/TiO 2 and CN-10Ce–2La/TiO 2 , respectively.…”

“…Among them, the samples synthesized with titanium sulfate as the precursor showed the highest catalytic activity. As for the preparation methods, Chen 11 et al compared the catalytic performance of the Ce–Mn/TiO 2 mixed oxides prepared by inverse co-precipitation, conventional co-precipitation and impregnation methods. Results showed that the catalyst prepared by inverse co-precipitation method had the highest low-temperature catalytic activity and the best resistance to water and SO 2 .…”

The Resistance of SO2 and H2O of Mn-Based Catalysts for NOx Selective Catalytic Reduction with Ammonia: Recent Advances and Perspectives

“…Both the 3DOM-Mn 3 Ce 1 and 3DOM-Mn 3 Ce 1 Ti 1 catalysts had excellent water resistance. Chen et al 20 prepared Ce–Mn/TiO 2 catalysts using reverse coprecipitation, conventional coprecipitation, and impregnation methods. The Ce–Mn/TiO 2 catalysts prepared by the reverse precipitation method had the best SO 2 resistance.…”

Unraveling the interactions of reductants and reaction path over Cu-ZSM-5 for model coal-gas-SCRviaa transient reaction study

“…1–3 Among the various deNO x technologies, NH 3 -SCR (selective catalytic reduction by NH 3 ) is commonly regarded as the most effective method to eliminate NO x due to its high deNO x efficiency. 4–6 However, some issues exist in the NH 3 -SCR process, such as deactivation of the catalyst caused by the formation of ammonium sulfate/nitrate, secondary pollution caused by NH 3 slip, and equipment corrosion. 7,8 Thus, it is urgent to develop non-ammonia-SCR technology for efficient removal of NO x .…”