NO reduction by CH4 in the presence of excess O-2 over Mn/sulfated zirconia catalysts
文献类型：期刊论文
| 作者 | Ning, L; Wang, AQ; Wang, XD; Zheng, MY; Cheng, RH; Zhang, T |
| 刊名 | applied catalysis b-environmental
 |
| 出版日期 | 2004-04-08 |
| 卷号 | 48期号:4页码:259-265 |
| 关键词 | NO reduction methane sulfated zirconia tolerance water and SO2 |
| 英文摘要 | selective catalytic reduction (scr) of no with methane in the presence of excess oxygen has been investigated over a series of mn-loaded sulfated zirconia (sz) catalysts. it was found that the mn/sz with a metal loading of 2-3 wt.% exhibited high activity for the no reduction, and the maximum no conversion over the mn/sz catalyst was higher than that over mn/hzsm-5. nh3-tpd results of the catalysts showed that the sulfation process of the supports resulted in the generation of strong acid sites, which is essential for the scr of no with methane. on the other hand, the n-2 adsorption and the h-2-tpr of the catalysts demonstrated that the presence of the so42- species promoted the dispersion of the metal species and made the mn species less reducible. such an increased dispersion of metal species suppressed the combustion reaction of ch4 by o-2 and increased the selectivity towards no. the mn/sz catalysts prepared by different methods exhibited similar activities in the scr of no with methane, indicating the importance of so42-. the most attractive feature of the mn/sz catalysts was that they were more tolerant to water and so2 poisoning than mn/hzsm-5 catalysts and exhibited higher reversibility after removal of so2. (c) 2003 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, environmental ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | selective reduction ; nitrogen-oxides ; nitric-oxide ; microwave-discharge ; enhanced activity ; water-vapor ; methane ; oxygen ; scr ; hydrocarbons |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000220640800004 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139591]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, L,Wang, AQ,Wang, XD,et al. NO reduction by CH4 in the presence of excess O-2 over Mn/sulfated zirconia catalysts[J]. applied catalysis b-environmental,2004,48(4):259-265. |
| APA | Ning, L,Wang, AQ,Wang, XD,Zheng, MY,Cheng, RH,&Zhang, T.(2004).NO reduction by CH4 in the presence of excess O-2 over Mn/sulfated zirconia catalysts.applied catalysis b-environmental,48(4),259-265. |
| MLA | Ning, L,et al."NO reduction by CH4 in the presence of excess O-2 over Mn/sulfated zirconia catalysts".applied catalysis b-environmental 48.4(2004):259-265. |
入库方式： OAI收割
来源：大连化学物理研究所
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