Sodium ascorbate as additive in red mud slurry for simultaneous desulfurization and denitrification: Insights into the multiple influence factors and reaction mechanism
文献类型：期刊论文
| 作者 | Liu, Xiaolong2; Geng, Ran; Li, Bin1; Ning, Ping1; Zhu, Tingyu2,3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 307页码:9 |
| ISSN号 | 0045-6535 |
| 关键词 | Simultaneous removal Red mud Denitrification Sodium ascorbate Ozone oxidation |
| DOI | 10.1016/j.chemosphere.2022.135683 |
| 英文摘要 | Based on the ultra-low emission demand of SO2 and NOx in flue gas, a new absorption method was proposed to improve the desulfurization and denitrification efficiency and reduce the amount of ozone by using sodium ascorbate as an additive in red mud slurry. Compared with pure red mud slurry, the red mud (RM) + sodium ascorbate (SA) slurry significantly improved the denitrification efficiency from 24% to 84% and the desulfurization efficiency to 98%. Meanwhile, the effects of RM, SA concentration, reaction time and O-3/NO molar ratio on desulfurization and denitrification efficiencies were studied. The results showed that the RM + SA composite slurry maintained high efficiencies of desulfurization and denitrification for 240 min under the optimized conditions. As an antioxidant, the introduction of SA inhibited the excessive oxidation of sulfite, and itself could easily react with NO2 through the redox reaction, greatly promoting the absorption of NO2. In addition, the reaction mechanism of the simultaneous removal of SO2 and NO2 by red mud and sodium ascorbic mixed slurry combined was proposed. |
| WOS关键词 | NITRIC-OXIDE ; SIMULTANEOUS REMOVAL ; FLUE-GAS ; SIMULTANEOUS ABSORPTION ; NO REMOVAL ; AQUEOUS-SOLUTIONS ; NITROGEN-OXIDES ; SO2 ; OXIDATION ; REDUCTION |
| 资助项目 | National Natural Science Foundation of China[51978644] ; National Key Research and Development Program of China[2018YFC0213400] ; National Key Research and Development Program of China[2020LHJH004] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000830891100004 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54286]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Bin; Zhu, Tingyu |
| 作者单位 | 1.Kunming Univ Sci & Technol, Fac Environm Sci & Engn, Kunming 650500, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Innovat Acad Green Manufacture, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaolong,Geng, Ran,Li, Bin,et al. Sodium ascorbate as additive in red mud slurry for simultaneous desulfurization and denitrification: Insights into the multiple influence factors and reaction mechanism[J]. CHEMOSPHERE,2022,307:9. |
| APA | Liu, Xiaolong,Geng, Ran,Li, Bin,Ning, Ping,&Zhu, Tingyu.(2022).Sodium ascorbate as additive in red mud slurry for simultaneous desulfurization and denitrification: Insights into the multiple influence factors and reaction mechanism.CHEMOSPHERE,307,9. |
| MLA | Liu, Xiaolong,et al."Sodium ascorbate as additive in red mud slurry for simultaneous desulfurization and denitrification: Insights into the multiple influence factors and reaction mechanism".CHEMOSPHERE 307(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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