Effect of gas composition on nitric oxide removal from simulated flue gas with DBD-NPC method |
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| Authors: | Lan Yang Xiang Zhang Qing Kan Binran Zhao Xiaoxun Ma |
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| Affiliation: | School of Chemical Engineering, Northwest University, Xi'an 710069, China;Chemical Engineering Research Center of the Ministry of Education (MOE) for Advanced Use Technology of Shanbei Energy, Xi'an 710069, China;Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Xi'an 710069, China;International Scientific and Technological Cooperation Base of the Ministry of Science and Technology (MOST) for Clean Utilization of Hydrocarbon Resources, Xi'an 710069, China;Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an 710069, China |
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| Abstract: | A new method for nitric oxide (NO) removal was developed by combining dielectric barrier discharge (DBD) and negative pulse corona (NPC). The effects of gas composition (O2, CO2, and H2O) on NO removal were investigated with this method, and the effect of alcohols (methanol and ethanol) addition on NO removal was also investigated as well as the reaction mechanisms to enhance the NO removal efficiency. The experimental results showed that O2, CO2, and H2O had obvious inhibition effects on NO removal, and the negative effects were in the following order:O2 > CO2 > H2O. The addition of methanol or ethanol in the reaction system could mitigate the negative effects of O2, CO2, and H2O on NO removal, and also eliminated the production of NO2. The positive effect of alcohols addition with DBD-NPC denitration method was also validated in the simulated flue gas, in which the NOx (NO, NO2) was mainly converted into N2. |
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| Keywords: | Dielectric barrier discharge (DBD) Corona discharge Nitric oxide Alcohols Flue gas |
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