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Recent advancements in chemical looping water splitting for the production of hydrogen

机译：氢气生产化学循环水分裂的最新进展

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摘要

Chemical looping water splitting or chemical looping hydrogen is a very promising technology for the production of hydrogen. In recent years extensive research has enabled remarkable leaps towards a successful integration of the chemical looping technology into a future hydrogen infrastructure. Progress has been reported with iron based oxygen carriers for stable hydrogen production capacity over consecutive cycles without significant signs of degradation. The high stability improvements were achieved by adding alien metal oxides or by integrating the active component into a mineral structure which offers excellent resistance towards thermal stress. Prototype systems from small mu-systems up to 50 kW have been operated with promising results. The chemical looping water splitting process was broadened in terms of its application area and utilization of feedstocks using a variety of renewable and fossil resources. The three-reactor system was clearly advantageous due to its flexibility, heat integration capabilities and possibility to produce separate pure streams of hydrogen, CO2 and N-2. However two-reactor and single fixed-bed reactor systems were successfully operated as well. This review aims to survey the recently presented literature in detail and systematically summarize the gathered data.
机译：化学环路水分裂或化学环氢是一种非常有前途的氢气生产技术。近年来，广泛的研究使得化学环路技术成功地将化学循环技术融入了未来的氢基础设施。已经报道了氧化铁基氧携带能力的进展，其稳定的氢气产能在连续循环中没有显着降解迹象。通过加入外星金属氧化物或通过将活性成分与矿物结构集成到矿物结构中来实现的高稳定性改善，这为热应力提供了优异的抗性。具有高达50 kW的小MU系统的原型系统已经进行了有希望的结果。通过各种可再生和化石资源的应用面积和原料利用，化学环循环分裂过程拓宽扩大。由于其柔韧性，热量集成能力和生产单独的纯氢气，CO 2和N-2，三反应器系统显然是有利的。然而，两种反应器和单固定床反应器系统也被成功运行。该审查旨在详细调查最近提出的文献，并系统地总结了收集的数据。

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  • 来源
    《RSC Advances》 |2016年第100期|共30页
  • 作者

    Voitic G.; Hacker V.;

  • 作者单位

    Graz Univ Technol Inst Chem Engn &

    Environm Technol NAWI Graz Inffeldgasse 25-C-2 A-8010 Graz Austria;

    Graz Univ Technol Inst Chem Engn &

    Environm Technol NAWI Graz Inffeldgasse 25-C-2 A-8010 Graz Austria;

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  • 正文语种 eng
  • 中图分类 化学;
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