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Kinetics versus thermodynamics on CO 2 dissociation in high temperature microwave discharges
Plasma Sources Science and Technology ( IF 3.8 ) Pub Date : 2020-03-11 , DOI: 10.1088/1361-6595/ab6e5a
L D Pietanza , G Colonna , M Capitelli

Recent experiments by Groen et al (2019 Plasma Sources Sci. Technol. 28 075016) on CO 2 activation at high translational temperature(3500 < T g < 5500 K) are analyzed with a self-consistent code describing the vibrational kinetics of reacting CO 2 together with CO and O 2 and the corresponding electron Boltzmann equation. The kinetics results are compared with the corresponding thermodynamics values. This comparison shows that the major components of the mixture, i.e. CO and O can be described by the thermodynamic approach, while the other minor components present large deviation from equilibrium. A qualitative agreement is found between experimental and theoretical values of electron density, E / N and electron temperature in both diffuse and contracted regimes. The theoretical vibrational distributions as well as the corresponding electron energy distribution functions present non-equilibri...

中文翻译:

高温微波放电中CO 2分解的动力学与热力学

Groen等人(2019 Plasma Sources Sci。Technol.28 075016)最近在高转化温度(3500 <T g <5500 K)下激活CO 2的实验用自洽代码分析,该代码描述了反应CO 2的振动动力学以及CO和O 2以及相应的电子玻耳兹曼方程。将动力学结果与相应的热力学值进行比较。该比较表明,混合物的主要成分(即CO和O)可以通过热力学方法来描述,而其他次要成分则表现出与平衡的较大偏差。在扩散和收缩状态下,电子密度,E / N和电子温度的实验值和理论值之间找到了定性的一致性。
更新日期:2020-03-12
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