Research on Catalytic Denitrification Performance of Rare Earth Tailings in CO Atmosphere AITranslate
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The catalytic denitrification performance of Bayan Obo rare earth tailings was studied.The results show that the rare earth tailings have good catalytic denitration performance.With the increase of reaction temperature and carbon to nitrogen ratio,denitration efficiency of the tailings obviously increases.When carbon to nitrogen ratio is 4∶1 and temperature is 900 ℃,NO conversion rate with catalysis of un-calcined tailings reaches 97%.Fe element in the rare earth tailings exists mainly in the form of Fe2O3 and Fe3O4,and Fe element changes to a low-valent state during CO reduction of NO catalyzed by the tailings.The increase of Fe-containing substances and the synergistic effect of various substances can enhance the catalytic denitration activity of the tailings.The natural tailings contain a large amount of Ce^3+,and the amount further increases in CO reducing atmosphere to improve denitrification ability of the tailings.Temperature-programmed reduction experimental results show that the tailings have excellent reducing ability.
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DOI：
Chinese Library Classification Number:X756[环境科学与工程—环境工程]
Citation Information:
The catalytic denitrification performance of Bayan Obo rare earth tailings was studied.The results show that the rare earth tailings have good catalytic denitration performance.With the increase of reaction temperature and carbon to nitrogen ratio,denitration efficiency of the tailings obviously increases.When carbon to nitrogen ratio is 4∶1 and temperature is 900 ℃,NO conversion rate with catalysis of un-calcined tailings reaches 97%.Fe element in the rare earth tailings exists mainly in the form of Fe2O3 and Fe3O4,and Fe element changes to a low-valent state during CO reduction of NO catalyzed by the tailings.The increase of Fe-containing substances and the synergistic effect of various substances can enhance the catalytic denitration activity of the tailings.The natural tailings contain a large amount of Ce^3+,and the amount further increases in CO reducing atmosphere to improve denitrification ability of the tailings.Temperature-programmed reduction experimental results show that the tailings have excellent reducing ability.
quote
| GB/T 7714-2015 | [1] ZHU Chao, GONG Zhi-jun, JIN Kai, et al. Research on Catalytic Denitrification Performance of Rare Earth Tailings in CO Atmosphere[J]. Rare Metals and Cemented Carbides, 2019(6): 25-32. |
| MLA | [1] ZHU Chao, et al., "Research on Catalytic Denitrification Performance of Rare Earth Tailings in CO Atmosphere." Rare Metals and Cemented Carbides, no. 6, 2019, pp. 25-32. |
| APA | [1] ZHU Chao, GONG Zhi-jun, JIN Kai, LUO Hui-juan, & WU Wen-fei. (2019). Research on Catalytic Denitrification Performance of Rare Earth Tailings in CO Atmosphere. Rare Metals and Cemented Carbides(6), 25-32. |
| IEEE | [1] ZHU Chao, GONG Zhi-jun, JIN Kai, LUO Hui-juan, and WU Wen-fei, "Research on Catalytic Denitrification Performance of Rare Earth Tailings in CO Atmosphere," Rare Metals and Cemented Carbides, no. 6, pp. 25-32, 2019. keywords: {rare earth tailing;denitrification;catalysis;reduction;NO;CO} |