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Study on the Effect of Roasting Temperature on Denitration Performance of Rare Earth Tailings Monolithic Catalyst Activated by Sulfuric Acid AITranslate

HOU Li-min; LU Lin-bo; GAO Hong-min; CHEN Han; WU Wen-fei
Key Laboratory of Efficient and Clean Combustion in Inner Mongolia Autonomous Regin,School of Energy and Environment,Inner Mongolia University of Sncience&Technology;Key Laboratory of Efficient and Clean Combustion in Inner Mongolia Autonomous Regin,School of Energy and Environment,Inner Mongolia University of Sncience&Technology;Key Laboratory of Efficient and Clean Combustion in Inner Mongolia Autonomous Regin,School of Energy and Environment,Inner Mongolia University of Sncience&Technology;Key Laboratory of Efficient and Clean Combustion in Inner Mongolia Autonomous Regin,School of Energy and Environment,Inner Mongolia University of Sncience&Technology;Key Laboratory of Efficient and Clean Combustion in Inner Mongolia Autonomous Regin,School of Energy and Environment,Inner Mongolia University of Sncience&Technology
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

Using the catalyst powder of rare earth tailings activated by sulfuric acid as raw material,a monolithic catalyst was prepared by adding additives and integral extrusion,and then characterized and analyzed by XRD,BET,XPS,and H2-TPR.In addition,its catalytic denitration reaction activity and N2 selectivity were tested on a denitration activity test platform to determine the suitable roasting system of the catalyst.The results show that the strip-shaped catalyst roasted at 350℃presents the best catalytic denitration activity and the largest specific surface area.The XPS spectral peak of its Fe2p orbital shifts towards high binding energy,indicating a significant Fe-Ce synergistic effect.At this roasting temperature,a honeycomb-shaped catalyst with a denitration efficiency of 81%and high N2 selectivity can be prepared,and its mechanical strength meets the national standard for the monolithic catalysts.

KeyWords AITranslate

monolithic catalyst rare earth tailings sulfuric acid activation roasting temperature denitration activity N2selectivity
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Chinese Library Classification Number:TQ426[化学工程]

Citation Information:

Using the catalyst powder of rare earth tailings activated by sulfuric acid as raw material,a monolithic catalyst was prepared by adding additives and integral extrusion,and then characterized and analyzed by XRD,BET,XPS,and H2-TPR.In addition,its catalytic denitration reaction activity and N2 selectivity were tested on a denitration activity test platform to determine the suitable roasting system of the catalyst.The results show that the strip-shaped catalyst roasted at 350℃presents the best catalytic denitration activity and the largest specific surface area.The XPS spectral peak of its Fe2p orbital shifts towards high binding energy,indicating a significant Fe-Ce synergistic effect.At this roasting temperature,a honeycomb-shaped catalyst with a denitration efficiency of 81%and high N2 selectivity can be prepared,and its mechanical strength meets the national standard for the monolithic catalysts.

quote

GB/T 7714-2015 [1] HOU Li-min, LU Lin-bo, GAO Hong-min, et al. Study on the Effect of Roasting Temperature on Denitration Performance of Rare Earth Tailings Monolithic Catalyst Activated by Sulfuric Acid[J]. Rare Metals and Cemented Carbides, 2024(4): 40-47.
MLA [1] HOU Li-min, et al., "Study on the Effect of Roasting Temperature on Denitration Performance of Rare Earth Tailings Monolithic Catalyst Activated by Sulfuric Acid." Rare Metals and Cemented Carbides, no. 4, 2024, pp. 40-47.
APA [1] HOU Li-min, LU Lin-bo, GAO Hong-min, CHEN Han, & WU Wen-fei. (2024). Study on the Effect of Roasting Temperature on Denitration Performance of Rare Earth Tailings Monolithic Catalyst Activated by Sulfuric Acid. Rare Metals and Cemented Carbides(4), 40-47.
IEEE [1] HOU Li-min, LU Lin-bo, GAO Hong-min, CHEN Han, and WU Wen-fei, "Study on the Effect of Roasting Temperature on Denitration Performance of Rare Earth Tailings Monolithic Catalyst Activated by Sulfuric Acid," Rare Metals and Cemented Carbides, no. 4, pp. 40-47, 2024. keywords: {monolithic catalyst;rare earth tailings;sulfuric acid activation;roasting temperature;denitration activity;Nselectivity}