Characteristics of emissive spectrum and the removal of nitric oxide in N2/O2/NO plasma with argon additive

摘要: Although the approach using non-thermal plasma (NTP) for deNOx has been studied over 15 years, how to achieve higher removal efficiency with lower cost is still a barrier its industrial application. In order investigate impact of argon additive on electron density, energy and nitric oxide reduction process in plasma, spectrum dielectric discharge at atmospheric pressure coaxial reactor was measured monochromater high resolution. The comparative experiments NO were carried out simultaneously N2/O2/NO stream without argon, respectively. nitrogen molecular which attributed level transition (C3pi(u)-->B3pi(g)) compared wavelength range 300-480 nm density temperature determined based relative intensities Stark broadening width spectral lines. results indicated that could enhance intensity emissive thus concentration as well increased, finally prompted ionization rate produce active N, O O3. showed conversion increased 10%-30% 5% addition comparing condition additive. This study will play positive role application reactor.