Carbon dioxide reforming of methane at near room temperature in low energy pulsed plasma
Carbon dioxide reforming of methane at near room temperature in low energy pulsed plasma
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DOI：
10.1016/j.ijhydene.2008.10.056
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发表时间：
2009-01-01
影响因子：
7.2
通讯作者：
Rezaei, S.
中科院分区：
文献类型：
--
作者：
Ghorbanzadeh, A. M.;Lotfalipour, R.;Rezaei, S.
在脉冲等离子体反应器中研究了甲烷与二氧化碳的重整反应。产物主要由合成气和C-2烃组成。与以前的类似工作相比，注入反应器的电脉冲能量低得多，5-8 mJ，而频率增加到5 kHz。在这些低能量密度下，化学能量效率明显提高。后者在整个实验中高于30%，而在反应物比CO2/CH 4 = 3时达到最大值约55%。虽然反应器温度通常为70 ℃，但实现了至少50%的氢气生产效率。较低能量密度下的较好性能归因于激发能级或等效地脉冲能量使分子解离速率快速饱和。(C)2008年国际氢能协会。由爱思唯尔有限公司出版。保留所有权利。
The reforming of methane by carbon dioxide was studied in a pulsed plasma reactor. The products mainly consisted of syngas and C-2 hydrocarbons. Compared to the previous similar works, the electrical pulse energy injected into the reactor was much lower, 5-8 mJ, while the frequency was increased up to 5 kHz. At these low energy densities, the chemical energy efficiency was appreciably improved. The latter was higher than 30% throughout the experiments while reached the maximum of about 55% at the reactants ratio CO2/CH4 = 3. Although, the reactor temperature was typically 70 degrees C, the hydrogen production efficiency of at least 50% was achieved. The better performance at lower energy densities is attributed to the fast saturation of the molecular dissociation rate by the excitation level or equivalently by the pulse energy. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.