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Photocatalytic Denitrification in Flue Gas

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Photo-catalytic Control Technologies of Flue Gas Pollutants

Part of the book series: Energy and Environment Research in China ((EERC))

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Abstract

NOX and SO2 emission from power plants during the coal burning process has been one of the major problems that result in adverse effect on the environment and human health. In general, ammonia based selective catalytic reduction (NH3-SCR) and calcium-based wet flue gas desulfurization (WFGD-Ca) processes have been applied to flue gas treatment of coal-fired power plants on a large scale, but they have not been able to achieve the comprehensive removal of a variety of pollutants . The combination of NH3-SCR and WFGD-Ca processes is mainly used to remove both simultaneous NOX and SO2, but the high capital operating costs limit its use in developing countries. In recent years, the study on the degradation of wastewater and gaseous pollutants by titanium dioxide has received extensive attention and has obtained good results in basic research and application-oriental research. Fe3O4-titanium dioxide composites were prepared by hydrothermal method, and the titanium dioxide layer was coated on the surface of Fe3O4. Because of the benefits of photocatalytic method, it has been paid attention to control NOx and other pollutant in the flue gas. The main principle of photocatalytically treating NOx is to photocatalytically oxidize NO into NO2, which is soluble and may be captured by WFGD through liquid absorption.

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Authors and Affiliations

  1. School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China

    Jiang Wu

  2. Shanghai University of Electric Power, Shanghai, China

    Jianxing Ren & Weiguo Pan

  3. School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, China

    Ping Lu

  4. School of Hydraulic, Energy and Power Engineering, Yangzhou University, Yangzhou, Jiangsu, China

    Yongfeng Qi

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  1. Jiang Wu
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  2. Jianxing Ren
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  3. Weiguo Pan
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  5. Yongfeng Qi
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Correspondence to Jiang Wu .

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Wu, J., Ren, J., Pan, W., Lu, P., Qi, Y. (2019). Photocatalytic Denitrification in Flue Gas. In: Photo-catalytic Control Technologies of Flue Gas Pollutants. Energy and Environment Research in China. Springer, Singapore. https://doi.org/10.1007/978-981-10-8750-9_5

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  • DOI: https://doi.org/10.1007/978-981-10-8750-9_5

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