Experimental analysis of plasma and heating effect on H2 permeation behavior through PdCu40% membranes in 1mm gap length plate reactor
Experimental analysis of plasma and heating effect on H2 permeation behavior through PdCu40% membranes in 1mm gap length plate reactor
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实验%20analysis%20of%20plasma%20and%20heating%20effect%20on%20H2%20permeation%20behavior%20through%20PdCu40%%20membranes%20in%201mm%20gap%20length%20plate%20reactor
DOI：
10.1016/j.ijhydene.2019.08.138
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Y. Hayakawa
中科院分区：
文献类型：
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作者：
Mostafa El-Shafie;S. Kambara;Y. Hayakawa
本文对15 μm和20 μ mPd-Cu 40%膜厚度下的纯加热氢渗透行为和等离子体加热氢渗透行为进行了实验分析。在1 mm缝隙长度的平板微通道反应器（PMCR）中，通入100 kPa的纯氢气。在PMCR加热温度范围为423-573 K和氢气流量为0.1-1 L/min的条件下，在仅加热实验下测量了通过Pd-Cu 40%膜的渗透氢气通量。在等离子体加热实验中，使用介质阻挡放电等离子体（DBD），施加电压范围为10-16 kV，PMCR加热温度为423-573 K，氢气流量为0.1 L/min。根据Fick和Sievert定律方程计算氢气渗透率。结果发现，氢气渗透率的加热实验低于从等离子体加热实验获得的Pd-Cu膜厚度。此外，等离子体加热实验的氢渗透率表现出非线性效应，表现在指前因子和激活能模式上。然而，据观察，氢渗透性降低，而DBD等离子体施加的电压是高的，由于氢气逆反应。已经开发了两个实验的氢渗透率和渗透率%之间的比较，以研究在两个实验中对膜厚度的依赖性。分析表明，15 μm膜厚的透氢率始终高于20 μm膜厚的透氢率，最大透氢率出现在PMCR加热温度为573 K时。
In this work, experimental analysis of hydrogen permeation behavior under heating only and plasma-heating effect were studied in 15 μm and 20 μm Pd–Cu40% membrane thicknesses. Apure hydrogen gas at feeding pressure of 100 kPa was injected in 1 mm gap length plate micro-channel reactor (PMCR). The permeated hydrogen flux through Pd–Cu40% membranes was measured under heating only experiment at PMCR heating temperature range of 423–573 K and hydrogen flow rates of 0.1–1 L/min. In the plasma-heating experiments, dielectric barrier discharge plasma (DBD) were used at the applied voltage ranges of 10–16 kV, PMCR heating temperatures 423–573 K and hydrogen flow rate 0.1 L/min. The hydrogen permeability was calculated according to the Fick's and Sievert's law equation. It was found that the hydrogen permeability of heating only experiments lower than that obtained from plasma-heating experiments for both Pd–Cu membrane thickness. Further, the hydrogen permeability of the plasma-heating experiments has shown anon-linearity effect which it was presented in the pre-exponential factor and the activation energy pattern. However, it was observed that the hydrogen permeability decreased while the DBD-plasma applied voltage was high, due to the hydrogen gas reverse reaction. A comparison between the hydrogen permeability and the permeation rate% of both experiments has been developed to investigate the dependence on the membrane thickness in both experiments. The analysis shows that the permeability of 15 μm membrane thickness was always higher than 20 μm membrane thickness results and the maximum hydrogen permeability was at PMCR heating temperature of 573 K.