Ca-Poisoning Effect on V2O5-WO3/TiO2 and V2O5-WO3-CeO2/TiO2 Catalysts with Different Vanadium Loading
文献类型：期刊论文
| 作者 | Guo, Yangyang1; Xu, Xiaofei3; Gao, Hong3; Zheng, Yang1; Luo, Lei1; Zhu, Tingyu1,2 |
| 刊名 | CATALYSTS
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 11期号:4页码:14 |
| 关键词 | Ca-poisoning SCR reaction NO reduction V2O5-WO3 TiO2 and V2O5-WO3-CeO2 TiO2 catalysts SO2 and water NO removal efficiency |
| DOI | 10.3390/catal11040445 |
| 英文摘要 | Ca poisoning behavior is inevitable for high-calcium content flue gas, so V2O5-WO3/TiO2 (VWT) and V2O5-WO3-CeO2/TiO2 (VWCeT) catalysts with different vanadium content have been prepared and the Ca-doped catalysts are compared in this manuscript. The result shows Ce addition can both promote the NO conversion and the alkali resistance. Lower Ca addition for 0.1VWCeT catalyst promotes its oxidability and Ce modification is more suitable for low vanadium catalysts. The total acidity and the reducibility of catalysts decline after Ca doping, and the reducibility of the active species on catalysts has been strengthened by Ce addition. CeO2 based catalysts with lower Ca loading struggle to resist sulfur poisoning, while higher Ca loading favors SO2 adsorption and also physically reduces the cerium acidification process. In the presence of SO2, additional Bronsted acid sites are formed in Ca rich catalyst. The dynamic NH3 adsorption has been investigated, shows that Ca doping content on catalyst is critical for SCR reaction, and the catalyst is more susceptible to SO2 initially in alkali flue gas during the actual application, but the sulfur resistance may increase with the alkali-poisoning effect aggravated by Ca doping. |
| 资助项目 | National Key Research and Development Program of China[2017YFC021080401] ; National Science Foundation of China[51778600] ; Key Research and Development Program of Hebei Province[19273715D] ; National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment[NEL-KF-2019017] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000642875300001 |
| 资助机构 | National Key Research and Development Program of China ; National Science Foundation of China ; Key Research and Development Program of Hebei Province ; National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/48368]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Guo, Yangyang; Zhu, Tingyu |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Inst Proc Engn, Key Lab Green Proc & Engn,Natl Engn Lab Hydromet, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Inner Mongolia Univ Technol, Coll Energy & Power Engn, Hohhot 010051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Yangyang,Xu, Xiaofei,Gao, Hong,et al. Ca-Poisoning Effect on V2O5-WO3/TiO2 and V2O5-WO3-CeO2/TiO2 Catalysts with Different Vanadium Loading[J]. CATALYSTS,2021,11(4):14. |
| APA | Guo, Yangyang,Xu, Xiaofei,Gao, Hong,Zheng, Yang,Luo, Lei,&Zhu, Tingyu.(2021).Ca-Poisoning Effect on V2O5-WO3/TiO2 and V2O5-WO3-CeO2/TiO2 Catalysts with Different Vanadium Loading.CATALYSTS,11(4),14. |
| MLA | Guo, Yangyang,et al."Ca-Poisoning Effect on V2O5-WO3/TiO2 and V2O5-WO3-CeO2/TiO2 Catalysts with Different Vanadium Loading".CATALYSTS 11.4(2021):14. |
入库方式： OAI收割
来源：过程工程研究所
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