基于DBD等离子体协同Cu催化剂降解甲苯废气
Degradation of toluene waste gas based on DBD plasma in collaboration with Cu catalyst
采用介质阻挡放电(DBD)等离子体与催化剂结合的工艺,比较不同工况下甲苯去除率、能量效率、臭氧(O3)浓度;同时采用光谱法确定等离子体放电的辐射强度以及讨论等离子体降解甲苯废气的反应过程。结果表明,在初始质量浓度为 500 mg/m3、进气流量为0.5 L/min、放电功率为60 W的条件下加入Cu-g-C3N4/γ-Al2O3催化剂后,甲苯的去除效率和反应器的能量效率分别高达93.21%和0.057 g/(kW·h),臭氧的质量浓度下降至35.63 mg/m3。
The paper presented a research on the application of catalysts for the synergistic degradation of toluene emissions in dielectric barrier discharge(DBD)plasma.Comparative analyses were conducted under varying experimental conditions to evaluate toluene removal efficiency,energy efficiency,and ozone (O3) concentration.Spectral diagnostics were employed to evaluate radiation intensity during plasma discharge.The degradation process was systematically analyzed.Results demonstrated that when operating under initial mass concentration of 500 mg/m3,gas flow rate of 0.5 L/min,and discharge power of 60 W,the Cu-g-C3N4/γ-Al2O3 catalyst achieved a toluene removal efficiency of 93.21% and an energy efficiency of 0.057 g/(kW·h),with ozone concentration decreasing to 35.63 mg/m3.
dielectric barrier discharge plasma / catalyst / toluene
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