Fundamental Study for an efficient formation of radicals in the electrical discharge plasma

放电等离子体中有效形成自由基的基础研究

• 批准号: 03453122
• 负责人: SADAKATA Masayoshi
• 金额: $ 3.97万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03453122/
• 关键词: Radical; Discharge; Nitrogen Atom; Plasma; Surface Discharge; マイクロ波; エジェクター; 窒素ラジカル; 環境; 酸化窒素; エジェクタ-

In this study, we developed the control method of generating and reducing key radicals at the specified place for the purpose of constructing a new radical reaction engineering. At first, it was examined the behavior of N radicals in the cylindrical surface discharge plasma. On the basis of these experimental results, we made the analysis of the chemical reaction engineering. It was found that the formation rate was balanced with the deactivation rate of N radicals within the residence time of 5 ms. It was also shown that the deactivation of N radicals was the main factor of decreasing formation efficiency of N radicals. From these results, it was realized that the abatement of the deactivation of N radicals on the solid surface was most important for an improvement of radical formation efficiency. Finally, we examined the deactivation rate of N radicals on the cylindrical wall in the laminar flow. As the result, we could make clear the effect of temperature, pressure and material on the deactivation rate of N radicals.

在本研究中，我们发展了在特定位置产生和还原关键自由基的控制方法，目的是构建一个新的自由基反应工程。首先，研究了N自由基在圆柱形表面放电等离子体中的行为。在这些实验结果的基础上，我们进行了化学反应工程分析。结果表明，在5 ms的停留时间内，N自由基的生成速率与失活速率基本平衡，N自由基的失活是导致N自由基生成效率降低的主要因素。从这些结果，它是认识到，在固体表面上的N自由基的失活的减轻是最重要的自由基形成效率的提高。最后，我们研究了层流中圆柱壁面上N自由基的失活速率。结果表明，温度、压力和材料对N自由基失活速率的影响是显著的。

项目成果

M.Sadakata et al.: Science of Earth Environmental Change. Kubapuro Co., 214 (1991)

M.Sadakata 等人：地球环境变化科学。

A.Harano, M.Sadakata, M.Sato: "Soot Oxidation in a Silent Discharge" J.of Chem.Eng.of Japan. Vol.24. 100-106 (1991)

A.Harano、M.Sadakata、M.Sato：“无声放电中的烟灰氧化”J.of Chem.Eng.of Japan。

定方 正毅ら: "地球環境変動の科学" クバプロ, 214 (1991)

Masatake Sadakata 等人：“全球环境变化科学”Kubapro，214 (1991)

A.Harano、M・Sadakata M.Sato: "Soot Oxidation in a Silent Discharge" J. of Chemical Engineering of Japan. 24. 100-106 (1991)

A. Harano、M. Sadakata M. Sato：“无声放电中的烟灰氧化”J. of Chemical Engineering of Japan 24. 100-106 (1991)。

Y.Kaya et al.: Handbook of Earth Environment. Omu Co., 1372 (1991)

Y.Kaya 等人：地球环境手册。