磁旋滑动弧促进甲烷部分氧化重整制氢
发布时间：2019-05-27 18:10
【摘要】：与传统的甲烷催化制氢技术相比,低温等离子体技术具有能耗低、无需催化剂、启停迅速、可在常温常压下运行等优点,具有良好的应用前景。为此,研究了空气载气下磁旋滑动弧放电等离子体的物理特性,并开展了甲烷部分氧化重整制氢实验。结果表明:空气体积流量分别为2 L/min、8 L/min、16 L/min时,电弧均可稳定旋转,转速最高为111 r/s,且存在固定的放电周期;而与传统刀片滑动弧不同的是,磁旋滑动弧在2 L/min的体积流量下依然可以维持稳定的运行和较长的电弧长度,从而有利于反应的充分进行;电弧长度和直径对放电电压、电流、功率、电流密度、电场强度和电导率等参数有直接影响。在甲烷部分氧化重整制氢实验中,CH_4的转化率和H_2的选择性均随过量空气系数的增加而先升后降,CH_4的转化率最高可达100%,H_2的选择性最高为42.42%,效果远好于传统的刀片式滑动弧。此外,微富氧的环境有利于甲烷的完全转化。研究结果证明磁旋滑动弧能够促进甲烷部分氧化重整制氢。
[Abstract]:Compared with the traditional methane catalytic hydrogen production technology, low temperature plasma technology has the advantages of low energy consumption, no catalyst, rapid start and stop, and can run at room temperature and pressure, so it has a good application prospect. In this paper, the physical properties of magnetically rotating sliding arc discharge plasma under air carrier gas were studied, and the experiment of partial oxidation and reforming of methane to hydrogen was carried out. The results show that when the air volume flow rate is 2 L min and 8 L min, respectively, the arc can rotate stably at 16 L/min, and the highest speed is 111r 路s, and there is a fixed discharge period. Different from the traditional blade sliding arc, the magnetic rotating sliding arc can still maintain stable operation and long arc length at the volume flow rate of 2 L/min, which is beneficial to the full reaction. Arc length and diameter have direct effects on discharge voltage, current, power, current density, electric field intensity and conductivity. In the partial oxidative reforming of methane to hydrogen production, the conversion of CH_4 and the selectivity of H 鈮，
本文编号：2486370
[Abstract]:Compared with the traditional methane catalytic hydrogen production technology, low temperature plasma technology has the advantages of low energy consumption, no catalyst, rapid start and stop, and can run at room temperature and pressure, so it has a good application prospect. In this paper, the physical properties of magnetically rotating sliding arc discharge plasma under air carrier gas were studied, and the experiment of partial oxidation and reforming of methane to hydrogen was carried out. The results show that when the air volume flow rate is 2 L min and 8 L min, respectively, the arc can rotate stably at 16 L/min, and the highest speed is 111r 路s, and there is a fixed discharge period. Different from the traditional blade sliding arc, the magnetic rotating sliding arc can still maintain stable operation and long arc length at the volume flow rate of 2 L/min, which is beneficial to the full reaction. Arc length and diameter have direct effects on discharge voltage, current, power, current density, electric field intensity and conductivity. In the partial oxidative reforming of methane to hydrogen production, the conversion of CH_4 and the selectivity of H 鈮，
本文编号：2486370
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