Highly active and stable CuxFey/AC-H catalysts with CuFe2O4 for NO reduction by CO in the presence of H2O and SO2 under regeneration gas
文献类型：期刊论文
| 作者 | Xu, Zhicheng1,3,5; Li, Yuran1; Lin, Yuting1; Wang, Bin1; Wang, Qiang4; Zhu, Tingyu1,2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 458页码:15 |
| 关键词 | Bimetallic modification NO reduction Regeneration gas H2O promoting effect Activated carbon |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2023.141304 |
| 英文摘要 | For industrial flue gas, the synergistic removal of NOx and CO pollutants is in high demand but still has not been realized due to the presence of O-2. We propose firstly that activated carbon regeneration gas provides suitable O-2-free conditions for NO reduction by CO, but high contents of 5% SO2 and 5% H2O affect the catalyst activity. Here, we report a bimetallic modified catalyst CuxFey/AC-H that exhibits high catalytic activity under the abovementioned conditions due to the high amount of CuFe2O4. By regulating the Cu/Fe ratio, the formation of CuFe2O4 active sites is promoted, which improves the redox properties, adsorption and activation capacity of NO, the ratio of high valence metal, and content of synergistic oxygen vacancies. Based on in situ DRIFTS and fixed-bed FTIR/MS combined platform, it was found that the side reaction of H2O with the intermediate of-NCO forms NH3 above 250 degrees C and with CO forms H-2 above 400 degrees C center dot NH3 and H-2 provide additional reaction pathways of Fast-SCR and H-2-SCR to significantly improve the reaction activity with 92.0% of NO conversion at 450 degrees C and 108,000 mL g(-1)h(-1) on Cu2Fe2/AC-H. According to DFT calculations, CuFe2O4 active sites provide the high binding energy of sulfation, and then Cu2Fe2/AC-H demonstrates excellent activity and long-term stability with 72.2% of NO conversion at high contents of SO2 and H2O for 48 h. And CuxFey/AC-H provides great potential prospects for the application of NO reduction by CO under activated carbon regeneration gas. |
| WOS关键词 | BINARY METAL-OXIDES ; TOTAL-ENERGY CALCULATIONS ; SEMI-COKE ; PHYSICOCHEMICAL PROPERTIES ; FCC REGENERATOR ; CARBON ; CUO ; PERFORMANCE ; OXIDATION ; GRAPHENE |
| 资助项目 | National Natural Science Foundation of China[U1810209] ; National Natural Science Foundation of China[52000172] ; National Key R & D Program of China[2018YFC0213406] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000922970700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; National Key R & D Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56894]  |
| 通讯作者 | Li, Yuran; Zhu, Tingyu |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Innovat Acad Green Manufacture, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing Key Lab Source Control Technol Water Pollu, Beijing 100083, Peoples R China 5.SINOPEC Beijing Res Inst Chem Ind, Beijing 100013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhicheng,Li, Yuran,Lin, Yuting,et al. Highly active and stable CuxFey/AC-H catalysts with CuFe2O4 for NO reduction by CO in the presence of H2O and SO2 under regeneration gas[J]. CHEMICAL ENGINEERING JOURNAL,2023,458:15. |
| APA | Xu, Zhicheng,Li, Yuran,Lin, Yuting,Wang, Bin,Wang, Qiang,&Zhu, Tingyu.(2023).Highly active and stable CuxFey/AC-H catalysts with CuFe2O4 for NO reduction by CO in the presence of H2O and SO2 under regeneration gas.CHEMICAL ENGINEERING JOURNAL,458,15. |
| MLA | Xu, Zhicheng,et al."Highly active and stable CuxFey/AC-H catalysts with CuFe2O4 for NO reduction by CO in the presence of H2O and SO2 under regeneration gas".CHEMICAL ENGINEERING JOURNAL 458(2023):15. |
入库方式： OAI收割
来源：过程工程研究所
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