https://scholars.lib.ntu.edu.tw/handle/123456789/425182
標題: | Effects of manganese oxide impregnation and flue gas conditions on simultaneous control of Hg<sup>0</sup> and NO from coal-fired utility flue gases using SCR catalysts | 作者: | Hsiao, Sheng Hsuan Chiu, Chun Hsiang Lin, Hong Ping Chen, Shiao Shing Chang, Tien Chin HSING-CHENG HSI |
關鍵字: | DeNOx catalyst | Elemental mercury | Glue gas composition | Manganese oxide | Multipollutant control | 公開日期: | 1-一月-2015 | 卷: | 1 | 起(迄)頁: | 397 | 來源出版物: | Air and Waste Management Association's Annual Conference and Exhibition | 摘要: | This research investigated the effects of manganese oxide (MnOx) impregnation on the physical/chemical properties and simultaneous control of Hg0 and NO using a V2O5-WO3/TiO2-SiO2 selective catalytic reduction (SCR) catalyst. Raw and MnOx-treated SCR samples were bean-shaped nanoparticles with sizes of 10-30 nm. The decrease in surface area when the impregnated MnOx amount was 10 wt% may stem from the particle growth or aggregation for SCR catalyst. Mn4+ was the main valence state of impregnated MnOx. MnOx impregnation enhanced the removal of Hg0, NO, and SO2 with SCR catalyst. The 5 and 10% MnOx-impregnated samples had the greatest multipollutant control potentials for removing Hg0 and NO; however, the increasing SO2 removal that may be due to SO2-SO3 conversion should be concerned. HCl and O2 greatly promoted Hg0 oxidation. SO2 enhanced Hg0 oxidation at ≤200 ppm while NO and NH3 consistently inhibited Hg0 oxidation. Elevating flue gas temperature enhanced Hg0 oxidation. Overall, MnOx-impregnated catalyst shows stable and consistent multipollutant removal effectiveness. |
描述: | 108th Air and Waste Management Association Annual Conference and Exhibition - Connecting the Dots: Environmental Quality to Climate, ACE 2015; Raleigh; United States; 22 June 2015 到 25 June 2015 |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/425182 | ISBN: | 9781510815582 | ISSN: | 10526102 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/85026772450 |
顯示於: | 環境工程學研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。