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High-Purity Hydrogen Generation via Dehydrogenation of Organic Carriers: A Review on the Catalytic Process
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-10 00:00:00 , DOI: 10.1021/acscatal.7b04278 Elia Gianotti 1 , Mélanie Taillades-Jacquin 1 , Jacques Rozière 1 , Deborah J. Jones 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-10 00:00:00 , DOI: 10.1021/acscatal.7b04278 Elia Gianotti 1 , Mélanie Taillades-Jacquin 1 , Jacques Rozière 1 , Deborah J. Jones 1
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High-purity hydrogen delivery for stationary and mobile applications using fuel cells is a subject of rapidly growing interest. As a consequence, the development of efficient storage technologies and processes for hydrogen supply is of primary importance. Promising hydrogen storage techniques rely on the reversibility and high selectivity of liquid organic hydrogen carriers (LOHCs), for example, methylcyclohexane, decalin, dibenzyltoluene, or dodecahydrocabazole. LOCHs have high gravimetric and volumetric hydrogen density, and they involve low risk and capital investment because they are largely compatible with the current transport infrastructure used for fossil fuels. A further advantage comes from the high purity (close to 100%) of the hydrogen generated by dehydrogenation, suitable to directly feed fuel cells without the need for bulky purification modules. Partial dehydrogenation (PDH) of liquid fuels has recently emerged as a transition technology for hydrogen delivery purposes. The principle is to extract from fossil fuels a small fraction of the available hydrogen, which can be used for fuel cell applications, while the dehydrogenated hydrocarbon mixture maintains suitable properties for its use as fuel. With this technology, the large energy demand of dehydrogenation processes can be satisfied by implementing a heat exchanger between the engine and the dehydrogenation reactor, overcoming one of the main constraints associated with the use of organic liquids as hydrogen carriers. This method qualifies itself as a transition technology toward more electrified transportations, in which the main propulsion is still obtained by fuel combustion, although the electrical utilities or auxiliary propulsion are powered by fuel cells. This paper provides a review of the effort that has been directed toward the utilization of organic liquids as hydrogen carriers, with particular focus on the design of the catalytic dehydrogenation process and on the recent approach of fuel partial dehydrogenation.
中文翻译：
通过有机载体的脱氢产生高纯氢：催化过程的回顾。
使用燃料电池的用于固定式和移动式应用的高纯度氢输送是快速增长的主题。因此，开发有效的氢存储技术和工艺至关重要。有前景的储氢技术依赖于液态有机氢载体（LOHC）（例如甲基环己烷，十氢化萘，二苄基甲苯或十二氢咔唑）的可逆性和高选择性。LOCH的重量氢和体积氢密度很高，并且风险低，投资成本低，因为它们与当前用于化石燃料的运输基础设施基本兼容。另一个优势来自于脱氢产生的氢气的高纯度（接近100％），适用于直接给燃料电池供电，而无需笨重的净化模块。液体燃料的部分脱氢（PDH）最近已经出现，是一种用于氢气输送的过渡技术。原理是从化石燃料中提取一小部分可用氢，该氢可用于燃料电池应用，而脱氢烃混合物则保留了适合用作燃料的特性。使用这种技术，可以通过在发动机和脱氢反应器之间安装热交换器来满足脱氢过程的大量能源需求，从而克服了与使用有机液体作为氢载体相关的主要限制之一。这种方法本身就是向更多电气化运输过渡的技术，尽管电力或辅助推进装置由燃料电池提供动力，但其中主推进装置仍通过燃料燃烧获得。本文对使用有机液体作为氢载体的努力进行了回顾，特别着重于催化脱氢工艺的设计以及燃料部分脱氢的最新方法。
更新日期：2018-04-10
中文翻译：
通过有机载体的脱氢产生高纯氢：催化过程的回顾。
使用燃料电池的用于固定式和移动式应用的高纯度氢输送是快速增长的主题。因此，开发有效的氢存储技术和工艺至关重要。有前景的储氢技术依赖于液态有机氢载体（LOHC）（例如甲基环己烷，十氢化萘，二苄基甲苯或十二氢咔唑）的可逆性和高选择性。LOCH的重量氢和体积氢密度很高，并且风险低，投资成本低，因为它们与当前用于化石燃料的运输基础设施基本兼容。另一个优势来自于脱氢产生的氢气的高纯度（接近100％），适用于直接给燃料电池供电，而无需笨重的净化模块。液体燃料的部分脱氢（PDH）最近已经出现，是一种用于氢气输送的过渡技术。原理是从化石燃料中提取一小部分可用氢，该氢可用于燃料电池应用，而脱氢烃混合物则保留了适合用作燃料的特性。使用这种技术，可以通过在发动机和脱氢反应器之间安装热交换器来满足脱氢过程的大量能源需求，从而克服了与使用有机液体作为氢载体相关的主要限制之一。这种方法本身就是向更多电气化运输过渡的技术，尽管电力或辅助推进装置由燃料电池提供动力，但其中主推进装置仍通过燃料燃烧获得。本文对使用有机液体作为氢载体的努力进行了回顾，特别着重于催化脱氢工艺的设计以及燃料部分脱氢的最新方法。
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