Characterization of a capillary plasma reactor for carbon dioxide decomposition
Characterization of a capillary plasma reactor for carbon dioxide decomposition
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DOI：
10.1088/0963-0252/15/4/003
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发表时间：
2006-07
影响因子：
3.8
通讯作者：
S. Mori;Aguru Yamamoto;Masa-aki Suzuki
中科院分区：
文献类型：
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作者：
S. Mori;Aguru Yamamoto;Masa-aki Suzuki
在等离子体反应器中，使用直径为0.5或3.0 mm，长度为25、50、75、100或150 mm的毛细管放电管，对二氧化碳的分解进行了实验研究。在3.33-120 Torr的压力范围内，测量了反应产物的化学组成和电流-电压特性。计算了CO2转化率和折合电场。结果表明，通过调整电流密度i和压力与管径的乘积pd，可以很好地评估尺度缩小对约化电场的影响。然而，CO2分解的特性不能确定的基础上，i和PD，它们更好地表征由i和p。它可以从我们的实验结果推断，CO2的转化率占主导地位的电子碰撞CO2解离和气相逆反应，即使在毛细管等离子体反应器。
The decomposition of carbon dioxide in a plasma reactor was investigated experimentally, using capillary discharge tubes with a diameter of 0.5 or 3.0 mm and a length of 25, 50, 75, 100 or 150 mm. The chemical composition of the reaction products and the current–voltage characteristics were measured over a pressure range of 3.33–120 Torr, and the CO2 conversion rates and reduced electric fields were calculated. The results show that the influence of downscaling on the reduced electric fields can be well evaluated by adjusting both the current density, i, and the products of the pressure and the tube diameter, pd. However, the characteristics of CO2 decomposition cannot be determined based on i and pd; they are better characterized by i and p. It can be deduced from our experimental results that the CO2 conversion rate is predominated by the electron impact CO2 dissociation and gas phase reverse reactions even in a capillary plasma reactor.