Cost‐effective and robust nickel (Ni) membrane for H₂ separation is a promising technology to upgrade the conventional H₂ industries with improved economics and environmental benignity. In this work, Ni hollow fibers (HFs) with one closed end were fabricated and assembled into a membrane module for pure H₂ separation by applying vacuum to the permeate side. The separation behavior of the HF module was investigated both experimentally and theoretically. Results indicate that H₂ recovery can be improved significantly by changing the operation conditions (temperature or feed pressure). Ni HF is a promising membrane geometry, but the negative effect of pressure drop when H₂ passes through the lumen cannot be ignored. Under the vacuum operation mode, there is little difference in term of H₂ recovery efficiency whether the feed gas flow is controlled in countercurrent or recurrent operation. This work provides important insight to the development of superior membrane H₂ separation system. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3662–3670, 2018

中文翻译：

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用于纯氢分离的金属镍中空纤维膜组件的设计

具有成本效益且坚固耐用的用于H ₂分离的镍（Ni）膜是一种有前途的技术，可通过改善的经济性和环境友好性来升级常规H ₂工业。在这项工作中，制造了一个具有一个封闭端的Ni中空纤维（HFs），并将其组装到一个膜组件中，通过在渗透侧施加真空来进行纯H ₂分离。HF模块的分离行为已在实验和理论上进行了研究。结果表明，通过改变操作条件（温度或进料压力）可以显着提高H _2的回收率。Ni HF是一种很有前途的膜几何形状，但H ₂时压降的负面影响穿过管腔不容忽视。在真空运行模式下，无论是逆流还是循环控制进料气流量，H ₂回收效率几乎没有差别。这项工作为高级膜H ₂分离系统的开发提供了重要的见识。©2018美国化学工程师学会AIChE J，64：3662–3670，2018