Role of NO in Hg-0 oxidation over a commercial selective catalytic reduction catalyst V2O5-WO3/TiO2
文献类型：期刊论文
| 作者 | Liu, Ruihui1,2; Xu, Wenqing1; Tong, Li1; Zhu, Tingyu1 |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 38期号:DEC页码:126-132 |
| 关键词 | Mercury NO Mechanism Selective catalytic reduction catalyst Oxidation Vanadium |
| ISSN号 | 1001-0742 |
| 通讯作者 | Xu, WQ (reprint author), Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China. |
| 英文摘要 | Experiments were conducted in a fixed-bed reactor that contained a commercial catalyst, V2O5-WO3/TiO2, to investigate mercury oxidation in the presence of NO and O-2. Mercury oxidation was improved by NO, and the efficiency was increased by simultaneously adding NO and O-2. With NO and O-2 pretreatment at 350 degrees C, the catalyst exhibited higher catalytic activity for Hg-0 oxidation, whereas NO pretreatment did not exert a noticeable effect. Decreasing the reaction temperature boosted the performance of the catalyst treated with NO and O-2. Although NO promoted Hg-0 oxidation at the very beginning, excessive NO counteracted this effect. The results show that NO plays different roles in Hg-0 oxidation; NO in the gaseous phase may directly react with the adsorbed Hg-0, but excessive NO hinders Hg-0 adsorption. The adsorbed NO was converted into active nitrogen species (e. g., NO2) with oxygen, which facilitated the adsorption and oxidation of Hg-0. Hg-0 was oxidized by NO mainly by the Eley-Rideal mechanism. The Hg-0 temperature-programmed desorption experiment showed that weakly adsorbed mercury species were converted to strongly bound ones in the presence of NO and O-2. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | COMBUSTION FLUE-GAS ; PHASE ELEMENTAL MERCURY ; ACTIVATED CARBON ; FUEL GAS ; REMOVAL ; SORBENTS ; TEMPERATURE ; ADSORPTION ; MECHANISM ; EMISSIONS |
| 收录类别 | SCI |
| 原文出处 | SCIENCE PRESS |
| 语种 | 英语 |
| WOS记录号 | WOS:000370547800015 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20648]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China 2.Northeastern Univ, Qinhuangdao Branch, Sch Resources & Mat, Key Lab Dielect & Electrolyt Funct Mat Hebei Prov, Qinhuangdao 066004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ruihui,Xu, Wenqing,Tong, Li,et al. Role of NO in Hg-0 oxidation over a commercial selective catalytic reduction catalyst V2O5-WO3/TiO2[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2015,38(DEC):126-132. |
| APA | Liu, Ruihui,Xu, Wenqing,Tong, Li,&Zhu, Tingyu.(2015).Role of NO in Hg-0 oxidation over a commercial selective catalytic reduction catalyst V2O5-WO3/TiO2.JOURNAL OF ENVIRONMENTAL SCIENCES,38(DEC),126-132. |
| MLA | Liu, Ruihui,et al."Role of NO in Hg-0 oxidation over a commercial selective catalytic reduction catalyst V2O5-WO3/TiO2".JOURNAL OF ENVIRONMENTAL SCIENCES 38.DEC(2015):126-132. |
入库方式： OAI收割
来源：过程工程研究所
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