Hydrogen Direct Adsorptive Separation: Development Status and Trends,Energy & Fuels

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Hydrogen Direct Adsorptive Separation: Development Status and Trends
Energy & Fuels ( IF 5.2 ) Pub Date : 2020-08-30 , DOI: 10.1021/acs.energyfuels.0c02317
Peixuan Hao _{1,

2} , Shuang Li _{1,

2} , Shigang Li ₃ , Yixiang Shi _{1,

2} , Ningsheng Cai _{1,

2}

Affiliation

Metal hydrides are promising hydrogen storage materials. As a result of their high volume adsorption density and excellent adsorption selectivity, they have also been proposed for use in hydrogen purification; that is, as hydrogen adsorbents for the direct separation of hydrogen from complex mixed gases. In this review, the properties of metal hydride adsorbents are reviewed, including their thermodynamic properties and susceptibility to poisoning by impurity gases. The differences and similarities between common pressure swing adsorption (PSA) techniques and PSA using metal hydride adsorbents are analyzed on the basis of which the principles for cycle procedure design are given. The potential utility of metal hydrides for hydrogen purification has been demonstrated by some lab- and pilot-scale tests, which are also introduced here. On the basis of this review and analysis, elevated-temperature PSA techniques using metal hydrides appear to be a feasible direction for the development of hydrogen purification processes.

中文翻译：

氢直接吸附分离：发展现状与趋势

金属氢化物是有前途的储氢材料。由于它们的高体积吸附密度和优异的吸附选择性，它们也被提议用于氢纯化；即作为氢从复杂的混合气体中直接分离出来的氢吸附剂。在这篇综述中，综述了金属氢化物吸附剂的性能，包括其热力学性能和易受杂质气体中毒的影响。分析了常见变压吸附（PSA）技术与使用金属氢化物吸附剂的PSA之间的异同，并在此基础上给出了循环程序设计的原理。金属氢化物用于氢纯化的潜在效用已通过一些实验室规模和中试规模的试验证明，此处也介绍了这些试验。

更新日期：2020-08-30

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