The Mechanism of Naphthalene Decomposition in Corona Radical Shower System by DC Discharge
Polycyclic aromatic hydrocarbons (PAHs) from coal-fired boilers and waste incinerators are regarded as some toxic and difficult decomposition pollutants. In this paper, it was studied how the applied voltage, the initial concentration and the catalyst affected the naphthalene decomposition characteristics using a corona discharge radical shower system. The emission spectrum of OH (A2∑+ → X2∏) was detected to understand the decomposition mechanism of naphthalene better. In addition, the decomposition by-products and the decomposition process were also analyzed initially. The results show that the increasing applied voltage and humidity is helpful to the naphthalene decomposition because of the increasing OH radicals. High initial concentration of naphthalene can heighten the decomposition amounts and the catalyst can improve the naphthalene decomposition. The main decomposed by-product is CO2 and H20. However, there are also little CO and small-molecule organic compounds to be found because of the incompletely oxidative reactions.
naphthalene decomposition corona radical shower OH emission spectrum
GAO Xiang SHEN Xu WU Zuliang LUO Zhongyang NI Mingjiang CEN Kefa
State Key Laboratory of Clean Energy Utilization of Zhejiang University,Hangzhou,310027,PR China State Key Laboratory of Clean Energy Utilization of Zhejiang University,Hangzhou,310027,PR China;Col
国际会议
11th International Conference on Electrostatic Precipitation(第11届国际电除尘学术会议)
杭州
英文
713-717
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）