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在常温、常压下 ,较系统地研究了CO2 在脉冲电晕等离子体条件下的活化与转化 ,考察了反应器参数、脉冲成形电容、应用电压、气体流量、电晕极性对二氧化碳转化的影响。在本实验条件下 ,最佳反应器的有效长度为12 5mm ,内径为 2 2mm。二氧化碳转化率和一氧化碳产率随应用电压的增加而增加。另外 ,随着应用电压的增加 ,脉冲反应器的能量利用效率反而降低。随着气体流量的增大 ,二氧化碳的转化率及一氧化碳的产率下降。γ Al2 O3的存在大大促进了二氧化碳的转化 ,CO2 的最高转化率达 2 3%。由于 γ Al2 O3在物化性质方面的特性 ,γ Al2 O3的存在对二氧化碳的转化有重要的作用。研究表明 :脉冲电晕放电 -催化转化CO2 为CO是可行的。
The activation and transformation of CO2 under pulsed corona plasma were systematically studied at room temperature and atmospheric pressure. The effects of reactor parameters, pulse shaping capacity, applied voltage, gas flow rate and corona polarity on the carbon dioxide conversion influences. Under the experimental conditions, the best reactor has an effective length of 12 mm and an inner diameter of 22 mm. Carbon dioxide conversion and carbon monoxide yields increase with application voltage. In addition, as the applied voltage increases, the energy efficiency of the pulse reactor decreases. As the gas flow increases, the conversion of carbon dioxide and the yield of carbon monoxide decrease. The presence of γ Al 2 O 3 greatly promoted the conversion of carbon dioxide, the maximum conversion rate of CO2 reached 23%. Because of the physical and chemical properties of γ Al 2 O 3, the presence of γ Al 2 O 3 plays an important role in the conversion of carbon dioxide. Studies have shown that: pulsed corona discharge - catalytic conversion of CO2 to CO is feasible.