The Influence of Oxygen on NO Removal by Non-equilibrium Plasma

doi:10.11930/j.issn.1004-9649.2014.7.134.2

Abstract

Abstract: On the basis of the physical and chemical models of NO in non-equilibrium plasma based gas removal system NO-N₂, the numerical simulation of NO removal process is conducted under different O₂ initial concentrations to study the evolution of NO and NO₂ concentrations varying with time. The influence of O₂ initial concentration on the concentrations of main particles and NO removal is studied. The calculation results show that the presence of O₂ has negative impacts on NO removal by non-equilibrium plasma. The NO removal efficiency reduces in the presence of O₂. The higher concentration of O₂ will lead to more decrease of NO removal efficiency. The adding of O₂ increases the NO₂ production as the result of the coexistence of non-equilibrium plasma and O₂. In the presence of O₂, the higher electron average energy will lead to further decrease of NO removal efficiency.

Key words: non-equilibrium plasma, O2, radical reaction, NO removal, numerical simulation

CLC Number:

O643.1

CAO Chun-mei, DING Qing-wei. The Influence of Oxygen on NO Removal by Non-equilibrium Plasma[J]. Electric Power, 2014, 47(7): 134-136.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.7.134.2

https://www.electricpower.com.cn/EN/Y2014/V47/I7/134

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