催化学报 ›› 2020, Vol. 41 ›› Issue (5): 756-769.DOI: 10.1016/S1872-2067(19)63404-2

• 电催化专栏 • 上一篇    下一篇

电化学氢压缩和纯化与竞争技术的对比:I.优缺点

Maha Rhandi, Marine Trégaro, Florence Druart, Jonathan Deseure, Marian Chatenet   

  1. 格勒诺布尔阿尔卑斯大学, 勃朗峰大学, CNRS, Grenoble-INP, LEPMI, 38000格勒诺布尔, 法国
  • 收稿日期:2019-05-20 修回日期:2019-07-15 出版日期:2020-05-18 发布日期:2019-12-31
  • 通讯作者: Marian Chatenet

Electrochemical hydrogen compression and purification versus competing technologies: Part I. Pros and cons

Maha Rhandi, Marine Trégaro, Florence Druart, Jonathan Deseure, Marian Chatenet   

  1. Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble-INP, LEPMI, 38000 Grenoble, France
  • Received:2019-05-20 Revised:2019-07-15 Online:2020-05-18 Published:2019-12-31
  • Contact: S1872-2067(19)63404-2

摘要: 毫无疑问,氢将在我们未来的能量组合中发挥重要作用,因为它可以储存可再生电(电-氢)并在燃料电池中可逆地转化为电能,更不用说它在(石油)化学工业中的广泛应用了.然而,在这些应用中需要纯氢,而如今的制氢仍主要基于化石燃料,因而不能被视为纯氢.因此,大规模的氢气净化是必须的.此外,氢是最轻的气体,它的体积能量含量远远低于它的竞争燃料,除非它在高压下被压缩(通常70MPa),使压缩不可避免.本文将详细说明目前可用于氢气净化和压缩的方法.这将表明在现有的技术中,也可以实现氢气净化的电化学氢压缩机(EHC)与目前工业规模上使用的经典技术相比具有许多优势.EHC有其热力学和操作上的优点,但也易于使用.然而,只有达到足够的性能,EHCs的部署才是可行的,这意味着他们的基础材料应遵守一些规范.本文将详述这些规范.

关键词: 电化学氢压缩, 氢能, 电化学氢净化, 热力学, 效率

Abstract: It is undisputed that hydrogen will play a great role in our future energetic mix, because it enables the storage of renewable electricity (power-to-H2) and the reversible conversion into electricity in fuel cell, not to speak of its wide use in the (petro)chemical industry. Whereas in these applications, pure hydrogen is required, today's hydrogen production is still largely based on fossil fuels and can therefore not be considered pure. Therefore, purification of hydrogen is mandatory, at a large scale. In addition, hydrogen being the lightest gas, its volumetric energy content is well-below its competing fuels, unless it is compressed at high pressures (typically 70 MPa), making compression unavoidable as well. This contribution will detail the means available today for both purification and for compression of hydrogen. It will show that among the available technologies, the electrochemical hydrogen compressor (EHC), which also enables hydrogen purification, has numerous advantages compared to the classical technologies currently used at the industrial scale. EHC has their thermodynamic and operational advantages, but also their ease of use. However, the deployment of EHCs will be viable only if they reach sufficient performances, which implies some specifications that their base materials should stick to. The present contribution will detail these specifications.

Key words: Electrochemical hydrogen compression, Hydrogen energy, Electrochemical hydrogen purification, Thermdynamics, Efficiency