Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique
Nonthermal plasma technique has drawn extensive attentions for removal of air pollutants such as NOx and SO2. The NO removal mechanism in pulse discharged plasma is discussed in this paper. Emission spectra diagnosis indicates that the higher the discharge voltage is, the more the NO are removed and...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/653576 |
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| author | Lianshui Zhang Xiaojun Wang Weidong Lai Xueliang Cheng Kuifang Zhao |
| author_facet | Lianshui Zhang Xiaojun Wang Weidong Lai Xueliang Cheng Kuifang Zhao |
| author_sort | Lianshui Zhang |
| collection | DOAJ |
| description | Nonthermal plasma technique has drawn extensive attentions for removal of air pollutants such as NOx and SO2. The NO removal mechanism in pulse discharged plasma is discussed in this paper. Emission spectra diagnosis indicates that the higher the discharge voltage is, the more the NO are removed and transformed into O, N, N2, NO2, and so forth. Plasma electron temperature Te is ranged from 6400 K at 2.4 kV discharge voltage to 9500 K at 4.8 kV. After establishing a zero-dimensional chemical reaction kinetic model, the major reaction paths are clarified as the electron collision dissociation of NO into N and O during discharge and followed by single substitution of N on NO to form N2 during and after discharge, compared with the small fraction of NO2 formed by oxidizing NO. The reaction directions can be adjusted by N2 additive, and the optimal N2/NO mixing ratio is 2 : 1. Such a ratio not only compensates the disadvantage of electron competitive consumption by the mixed N2, but also heightens the total NO removal extent through accelerating the NO oxidization process. |
| format | Article |
| id | doaj-art-4108efcf060947d3a8d70ec1bc4ada0c |
| institution | OA Journals |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-4108efcf060947d3a8d70ec1bc4ada0c2025-08-20T02:16:30ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/653576653576Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma TechniqueLianshui Zhang0Xiaojun Wang1Weidong Lai2Xueliang Cheng3Kuifang Zhao4College of Physics Science and Technology, Hebei University, Baoding, Hebei Province 071002, ChinaCollege of Physics Science and Technology, Hebei University, Baoding, Hebei Province 071002, ChinaCollege of Physics Science and Technology, Hebei University, Baoding, Hebei Province 071002, ChinaCollege of Physics Science and Technology, Hebei University, Baoding, Hebei Province 071002, ChinaCollege of Physics Science and Technology, Hebei University, Baoding, Hebei Province 071002, ChinaNonthermal plasma technique has drawn extensive attentions for removal of air pollutants such as NOx and SO2. The NO removal mechanism in pulse discharged plasma is discussed in this paper. Emission spectra diagnosis indicates that the higher the discharge voltage is, the more the NO are removed and transformed into O, N, N2, NO2, and so forth. Plasma electron temperature Te is ranged from 6400 K at 2.4 kV discharge voltage to 9500 K at 4.8 kV. After establishing a zero-dimensional chemical reaction kinetic model, the major reaction paths are clarified as the electron collision dissociation of NO into N and O during discharge and followed by single substitution of N on NO to form N2 during and after discharge, compared with the small fraction of NO2 formed by oxidizing NO. The reaction directions can be adjusted by N2 additive, and the optimal N2/NO mixing ratio is 2 : 1. Such a ratio not only compensates the disadvantage of electron competitive consumption by the mixed N2, but also heightens the total NO removal extent through accelerating the NO oxidization process.http://dx.doi.org/10.1155/2014/653576 |
| spellingShingle | Lianshui Zhang Xiaojun Wang Weidong Lai Xueliang Cheng Kuifang Zhao Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique The Scientific World Journal |
| title | Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique |
| title_full | Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique |
| title_fullStr | Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique |
| title_full_unstemmed | Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique |
| title_short | Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique |
| title_sort | removal dynamics of nitric oxide no pollutant gas by pulse discharged plasma technique |
| url | http://dx.doi.org/10.1155/2014/653576 |
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