NO Removal by Plasma-Enhanced NH3-SCR Using Methane as an Assistant Reduction Agent at Low Temperature
| Autor: | Gang Luo, Yanghaichao Liu, Heng Wei, Ruina Zhang, Renxi Zhang, Shanping Chen, Huiqi Hou, Weixuan Zhao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
Reducing agent dielectric barrier discharge (DBD) 02 engineering and technology 010402 general chemistry 01 natural sciences lcsh:Technology Methane lcsh:Chemistry chemistry.chemical_compound DBD–SCR assisted by CH4 parasitic diseases No removal General Materials Science Fourier transform infrared spectroscopy Instrumentation lcsh:QH301-705.5 NOx assistant reduction agent NO abatement Fluid Flow and Transfer Processes Chemistry lcsh:T Process Chemistry and Technology Chemical process of decomposition General Engineering Plasma 021001 nanoscience & nanotechnology lcsh:QC1-999 0104 chemical sciences Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 0210 nano-technology Selectivity lcsh:Engineering (General). Civil engineering (General) lcsh:Physics Nuclear chemistry |
| Zdroj: | Applied Sciences, Vol 9, Iss 13, p 2751 (2019) Applied Sciences Volume 9 Issue 13 |
| ISSN: | 2076-3417 |
| Popis: | The effects of using CH4 as an assistant reduction agent in plasma-assisted NH3&ndash SCR were investigated. The new hybrid reaction system performed better than DBD&ndash NH3&ndash SCR when the O2 concentration varied from 2% to 12%. Compared with DBD&ndash SCR, DBD&ndash CH4&ndash SCR (NH3:CH4 = 1:1) showed a more significant promotion effect on the performance and N2 selectivity for NOX abatement. When the O2 concentration was 6% and the SIE was 512 J/L, the NO removal efficiency of the new hybrid system reached 84.5%. The outlet gas components were observed via FTIR to reveal the decomposition process and its mechanism. This work indicated that CH4, as an assistant agent, enhances DBD&ndash SCR in excess oxygen to achieve a new process with significantly higher activity at a low temperature (&le 348 K) for NOX removal. |
| Databáze: | OpenAIRE |
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