Nitrogen Fixation and NO Conversion using Dielectric Barrier Discharge Reactor: Identification and Evolution of Products
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The recombination (synthesis and conversion) of nitric oxide was investigated using dielectric barrier discharge reactor at atmospheric pressure. In this work, products identification and its evolution of different gas components have been studied. In the NO/O2/N2 systems, nitric oxide (NO) can be removed via chemical oxidation and chemical reduction, and corresponding products are NO2 and N2, respectively. In the O2/N2 systems, N2O5 producing from the interaction of NO3 with NO2 was also observed. There is an optimum SED at which the highest NOx yield and best NO conversion efficiency will be achieved. In the H2O/O2/N2 systems, the formation of NO2, HNO2 and HNO3 were observed in both NF and NO conversion. The N2O molecule, as a byproduct of plasma chemical reaction, was observed in all the experiments when the H2O or O2 is presence in the simulated gas. The lowest energy cost of NO conversion is achieved at the SED of 1250 J/L.
KeywordsInterconversion Non-thermal plasma Specific energy density HNO2 N2O
This study was primarily supported by National Key R&D Program of China (2017YFC0210303-01). This work was also partly supported by National Natural Science Foundation of China (21677010, U1660109).
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