Adsorption and oxidation of nh3 over v2o5/ac catalyst
文献类型：期刊论文
| 作者 | Ma, JR; Liu, ZY; Huang, ZG; Liu, QY |
| 刊名 | Chinese journal of catalysis
 |
| 出版日期 | 2006 |
| 卷号 | 27期号:1页码:91-96 |
| 关键词 | Vanadia Activated coke Ammonia Adsorption Oxidation Sulfur dioxide Selective reduction |
| ISSN号 | 0253-9837 |
| 通讯作者 | Ma, jr(zyl@public.ty.sx.cn) |
| 英文摘要 | Adsorption and oxidation of nh3 is the key step in the selective catalytic reduction (scr) of no with nh3. in this paper, a v2o5/activated coke (ac) catalyst was prepared, and it proved to be highly active for so2 and no removal from the flue gas at about 200 degrees c. adsorption and temperature- programmed desorption with on-line mass spectroscopy analysis were used to study the adsorption and oxidation behavior of nh3 at 200 degrees c over the v2o5/ac catalyst. ac can adsorb nh3 and oxidize nh3 to no2 suggesting the presence of two types of active sites. supporting v2o5 on ac improves the nh3 adsorption capacity and results in the formation of a new nh3 oxidation product, n-2. adsorption of so2 on v2o5/ac to saturation (3.1% s) further promotes the nh3 adsorption, but eliminates the oxidation of nh3 to no and n-2. however, the neutralization of the sulfated v2o5/ac with nh3 is needed in order to recover its ability to oxidize nh3 to n-2. all the nh3 oxidation reactions depend on the gas phase o-2, but the oxygen in ac and v-o-2(5) plays little role in the nh3 oxidation. |
| WOS关键词 | ACTIVATED COKE ; AIR TOXICS ; REDUCTION ; SO2 ; AMMONIA ; REMOVAL ; GAS ; NO ; TEMPERATURES ; PROMOTION |
| WOS研究方向 | Chemistry ; Engineering |
| WOS类目 | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000235437700020 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379413 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ma, JR |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Beijing Univ Chem Technol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, JR,Liu, ZY,Huang, ZG,et al. Adsorption and oxidation of nh3 over v2o5/ac catalyst[J]. Chinese journal of catalysis,2006,27(1):91-96. |
| APA | Ma, JR,Liu, ZY,Huang, ZG,&Liu, QY.(2006).Adsorption and oxidation of nh3 over v2o5/ac catalyst.Chinese journal of catalysis,27(1),91-96. |
| MLA | Ma, JR,et al."Adsorption and oxidation of nh3 over v2o5/ac catalyst".Chinese journal of catalysis 27.1(2006):91-96. |
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来源：中国科学院大学
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