Characteristics of emissive spectrum and the removal of nitric oxide in N_2/O_2/NO plasma with argon additive

作     者：LIN Wenfeng,ZHANG Bin,HOU Wenhui,LI Dawei,YANG Hongmin School of Power Engineering,Nanjing Normal University,Nanjing 210042,China 

作者机构：School of Power Engineering Nanjing Normal University Nanjing 210042 China. E-mail: booboo.ai@*** 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2009年第21卷第6期

页      面：790-794页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the National Basic Research Program (973) of China (No. 2006CB200302) the Natural Science Foundation of Jiangsu Province (No.BK2007224) the Scientific Research Starting Foundation for Returned Overseas Chinese Scholars,Ministry ofEducation,China 

主　　题：argon emissive spectrum nitric oxide non-thermal plasma 

摘      要：Although the approach using non-thermal plasma（NTP） for deNOx has been studied for over 15 years,how to achieve higher removal effciency with lower cost is still a barrier for its industrial *** order to investigate the impact of the argon additive on electron density,energy and nitric oxide reduction process in plasma,the spectrum of the dielectric barrier discharge at atmospheric pressure in a coaxial reactor was measured using the monochromater with high *** comparative experiments for NO reduction were carried out simultaneously in N2/O2/NO plasma stream with and without argon,*** nitrogen molecular spectrum which is attributed to the energy level transition（C^3πu→ B^3πg） was compared in the wavelength range 300-480 nm and the electron density and temperature were determined based on the relative intensities and Stark broadening width of spectral *** spectrum results indicated that the argon additive could enhance the intensity of emissive spectrum of plasma,thus the electron concentration as well as the energy was increased,and finally prompted the ionization rate to produce active N,O and *** results of NO reduction showed that NO conversion effciency increased in the range of 10%-30% with 5% addition of argon in stream comparing with the condition without argon *** study will play a positive role in the industrial application of dielectric barrier discharge deNOx reactor.