Influence of phosphorus on the NH3-SCR performance of CeO2-TiO2 catalyst for NOx removal from co-incineration flue gas of domestic waste and municipal sludge
文献类型：期刊论文
| 作者 | Cao, Jun3; Rohani, Sohrab1; Liu, Weizao3; Liu, Honghui5; Lu, Zhuquan3; Wu, Hongli3; Jiang, Lijun3; Kong, Ming3; Liu, Qingcai3; Yao, Xiaojiang2,4
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| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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| 出版日期 | 2022-03-15 |
| 卷号 | 610页码:463-473 |
| ISSN号 | 0021-9797 |
| 关键词 | CeO2-TiO2 Phosphorus Over-oxidation of NH3 Reaction pathway NH3-SCR |
| DOI | 10.1016/j.jcis.2021.11.013 |
| 通讯作者 | Liu, Weizao(liuwz@cqu.edu.cn) ; Liu, Qingcai(liu_qingcai@163.com) ; Yao, Xiaojiang(yaoxj@cigit.ac.cn) |
| 英文摘要 | Domestic waste and municipal sludge are two major solid hazardous substances generated from human daily life. Co-incineration technology is regarded as an effective method for the treatment of them. However, the emitted NOx-containing exhaust with high content of phosphorus should purified strictly. CeO2-TiO2 is a promising catalyst for removal of NOx by NH3-SCR technology, but the effect of phosphorous in the exhaust is ambiguous. Therefore, the effect of phosphorus on NH3-SCR performance and physicochemical properties of CeO2-TiO2 catalyst was investigated in our present work. It was found that phosphorus decreased the NH3-SCR activity below 300 degrees C. Interestingly, it suppressed the formation of NOx and N2O caused by NH3 over-oxidation above 300 degrees C. The reason might be that phosphorus induced Ti-4. to migrate from CeO2-TiO2 solid solution and form crystalline TiO2, which led to the destruction of TiO-Ce structure in the catalyst. So, the transfer of electrons between Ti and Ce ions, the relative contents of Ce3+, and surface adsorbed oxygen, as well as the redox performance were limited, which further inhibited the over-oxidation of NH3. In addition, phosphorus weakened the NH3 adsorption on Lewis acid sites and the adsorption performance of NO + O-2, while increased the Bronsted acid sites. Finally, the reaction mechanism over CeO2-TiO2 catalyst did not change after introducing phosphorus, L-H and E-R mechanisms co-existed on the surface of the catalysts. (C) 2021 Elsevier Inc. All rights reserved. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000772009700007 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/15494]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Liu, Weizao; Liu, Qingcai; Yao, Xiaojiang |
| 作者单位 | 1.Western Univ, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada 2.Univ Chinese Acad Sci UCAS Chongqing, Coll Resources & Environm, Chongqing Sch, Chongqing 400714, Peoples R China 3.Chongqing Univ, Coll Mat Sci & Engn, Shazheng St 174, Chongqing 400044, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Atmospher Environm, Key Lab Reservoir Aqut Environm CAS, Chongqing 400714, Peoples R China 5.Spic Yuanda EnvironmentalProtect Catalyst Co Ltd, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jun,Rohani, Sohrab,Liu, Weizao,et al. Influence of phosphorus on the NH3-SCR performance of CeO2-TiO2 catalyst for NOx removal from co-incineration flue gas of domestic waste and municipal sludge[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,610:463-473. |
| APA | Cao, Jun.,Rohani, Sohrab.,Liu, Weizao.,Liu, Honghui.,Lu, Zhuquan.,...&Yao, Xiaojiang.(2022).Influence of phosphorus on the NH3-SCR performance of CeO2-TiO2 catalyst for NOx removal from co-incineration flue gas of domestic waste and municipal sludge.JOURNAL OF COLLOID AND INTERFACE SCIENCE,610,463-473. |
| MLA | Cao, Jun,et al."Influence of phosphorus on the NH3-SCR performance of CeO2-TiO2 catalyst for NOx removal from co-incineration flue gas of domestic waste and municipal sludge".JOURNAL OF COLLOID AND INTERFACE SCIENCE 610(2022):463-473. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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