熱プラズマによるＮＯ合成およびＣＯ２分解の数値解析

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  • Numerical analyses of thermal plasma synthesis of NO and thermal plasma decomposition of CO2.
  • ネツ プラズマ ニ ヨル NO ゴウセイ オヨビ CO2 ブンカイ ノ スウチ

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Numerical calculations were performed to investigate the reaction fields in the thermal plasma synthesis of NO and the thermal plasma decomposition of CO2. Models were based on the solutions of one-and two-dimensional mass, momentum, energy, and species conservation equations. The calculated results for both reaction systems in the two-dimensional model agreed well with experimental results. The results for the one-dimensional model also showed that the one-dimensional model was adequate for CO2 decomposition, but not for NO synthesis. Comparison of these reaction systems suggested that the validity of the solution for the one-dimensional model was affected by the temperature dependency of the decomposition rate of products. The axial conversion profiles obtained determined the most suitable position of the quenching.

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