The simultaneous removal of NO and SO2 over MnO2 material via the multi-stage fluidized bed process at low temperatures
文献类型：期刊论文
| 作者 | Li, Changming2; Zhang, Xiaoling1; Li, Yunjia1; Sun, Lixin1; Huangfu, Lin3; Li, Jianling1; Gao, Shiqiu1; Yu, Jian1 |
| 刊名 | FUEL
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 334页码:9 |
| 关键词 | Multi-stage fluidized bed MnO2 Denitrification Desulfuration |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2022.126590 |
| 英文摘要 | To overcome the easy poisoning and deactivation of denitrification catalysts by SO2 at low temperatures, the bench-scale multi-stage fluidized bed (MSFB) process with the active MnO2 medium (feeding rate of 0.3-1.2 kg/ h) is designed and applied to simultaneously remove the NO and SO2 from flue gas of medium/small industrial boilers in the low-temperature range of 100 - 200 degrees C, which demonstrates excellent and stable removal efficiency of both NO and SO2 even in the presence of 10 vol% water. In the MSFB system, the fluidized MnO2 particles in different layers flow against the simulated flue gas stage by stage, and the deactivated MnO2 will be continuously discharged and replaced with fresh MnO2 to keep the system effective and steady. The MnO2 medium acts as both denitrification (DeNOx) catalyst and desulfurizer, and the limited backmixing and layered arrangement of the MSFB system ensure the high removal capacity and sufficient utilization of MnO2 material. The multiple structural characterizations further reveal that the active MnO2 is gradually consumed by SO2 to form MnSO4 stage by stage with decreased specific surface and pore volume, accounting for its gradually decreased removal efficiency of both NO and SO2 stage by stage. And the deactivated MnO2 can be easily regenerated by aqueous ammonia with the conversion of MnSO4 to active MnO2. The demonstrated advantages of the MSFB system with MnO2 will provide a promising technical route for the simultaneous removal of NO and SO2 from low-temperature flue gas in industry. |
| WOS关键词 | SELECTIVE CATALYTIC-REDUCTION ; FLUE-GAS ; MANGANESE OXIDE ; SULFUR-DIOXIDE ; SCR ; NH3 ; PERFORMANCE ; NH3-SCR ; DESULFURIZATION ; TOLERANCE |
| 资助项目 | National Natural Science Foundation of China ; Natural Science Foundation of Beijing Municipality ; [21601192] ; [8222042] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000891442200005 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Beijing Municipality |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56012]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Yu, Jian |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Beijing Technol & Business Univ, Sch Ecol & Environm, State Environm Protect Key Lab Food Chain Pollut C, Beijing 100048, Peoples R China 3.Pangang Grp Res Inst Co Ltd, State Key Lab Vanadium & Titanium Resources Compre, Panzhihua 617000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Changming,Zhang, Xiaoling,Li, Yunjia,et al. The simultaneous removal of NO and SO2 over MnO2 material via the multi-stage fluidized bed process at low temperatures[J]. FUEL,2023,334:9. |
| APA | Li, Changming.,Zhang, Xiaoling.,Li, Yunjia.,Sun, Lixin.,Huangfu, Lin.,...&Yu, Jian.(2023).The simultaneous removal of NO and SO2 over MnO2 material via the multi-stage fluidized bed process at low temperatures.FUEL,334,9. |
| MLA | Li, Changming,et al."The simultaneous removal of NO and SO2 over MnO2 material via the multi-stage fluidized bed process at low temperatures".FUEL 334(2023):9. |
入库方式： OAI收割
来源：过程工程研究所
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