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Plasma Catalytic Conversion of Methane in Ultra Rich Flame using Transient Gliding Arc Combustion Support

机译:使用瞬态滑动弧燃烧支撑件超丰富火焰中甲烷的血浆催化转化

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A new approach for hydrogen rich gas or synthesis gas production from hydrocarbon fuels is presented in the present paper. Steam reforming or partial oxidation reaction of hydrocarbon gives syn-gas. But such reactions require high-energy input and catalyst for efficient operation. Plasma was used as a catalyst for the process to achieve maximum efficiency at minimum power input. Transitional non-thermal plasma reactor was fabricated and experiments were carried out. The reactor was based on Gliding Arc in Tornado (GAT) design. Such a plasma catalytic reactor can sustain an ultra rich flame of methane at desired power level and was very effective in achieving this conversion. In this plasma chemical reactor we have high power density and high selectivity of chemical process using transient gliding arc (GA) in a reverse vortex or tornado reactor configuration. Also the discharge is a strongly non-equilibrium, low current, high voltage arc column, which moves over the electrodes with relatively high power density and high electron density for selective partial oxidation of methane. At the same time, this reverse vortex design enhances recirculation of active species and thermal insulation of the reactor zone. This experimental setup was tested for long hours at different conditions and process parameters were analyzed. The results showed plasma energy cost for this conversion could be as small as 0.06 KW-hr/m{sup}3 of syngas, which is much lower compared to other plasma chemical systems reported in the literature. The experimental results were encouraging and in good agreement with numerical simulation done in ChemKin using GRI 2.11 mechanism for methane conversion.
机译:本文提出了一种新的烃富氢或烃燃料的氢气制备方法。烃的蒸汽重整或烃的部分氧化反应聚合气体。但这种反应需要高能量输入和催化剂进行高效操作。血浆用作该方法的催化剂,以在最小功率输入下实现最大效率。制备过渡的非热血浆反应器并进行实验。反应器基于龙卷风(GAT)设计的滑动弧。这种血浆催化反应器可以在所需功率水平下维持超富甲烷的甲烷,并且在实现该转化率方面非常有效。在该等离子体化学反应器中,使用瞬态滑动弧(Ga)在反向涡旋或龙卷风反应器构型中具有高功率密度和高选择性的化学过程。此外,放电是强烈的非平衡,低电流,高压电弧柱,其在具有相对高功率密度和高电子密度的电极上移动,用于选择性部分氧化甲烷。同时,这种反向涡旋设计增强了活性物种的再循环和反应器区的隔热。在不同条件下测试该实验设置长时间,分析了工艺参数。结果表明,该转化的血浆能量成本可以像在文献中报道的其他血浆化学系统相比一样小于0.06kW-HR / m {sup} 3。实验结果令人鼓舞,并符合Chemin在Chemin中使用GRI 2.11进行甲烷转化机制的数值模拟。

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