For a sustainable hydrogen economy, large-scale transportation and storage of hydrogen becomes increasingly important. Typically, hydrogen is compressed or liquified, but both processes are energy intensive. Liquid organic hydrogen carriers (LOHCs) present a potential solution for mitigating these challenges while making use of the existing fossil fuel transportation infrastructure. Here, we present a process intensification strategy for improved LOHC dehydrogenation and an example of clean power generation using solid oxide fuel cells. Four LOHC candidates—ammonia, biphenyl-diphenylmethane eutectic mixture, N-phenylcarbazole, and N-ethylcarbazole—have been compared as stand-alone and integrated systems using comprehensive process simulation. “Temperature cascade” dehydrogenation was shown to increase the energy generated per unit mass (kWh/kg LOHC) by 1.3–2 times in an integrated system compared to stand-alone LOHC systems, thus providing a possibility for a positive impact on a LOHC-based hydrogen supply chain.

对于可持续的氢经济，氢的大规模运输和储存变得越来越重要。通常，氢气被压缩或液化，但是这两个过程都是能源密集型的。液态有机氢载体（LOHC）为缓解这些挑战提供了一种潜在的解决方案，同时可以利用现有的化石燃料运输基础设施。在这里，我们提出了用于增强LOHC脱氢的工艺强化策略，以及使用固体氧化物燃料电池进行清洁发电的示例。四种LOHC候选物-氨，联苯-二苯甲烷共晶混合物，N-苯基咔唑和N-乙基咔唑—使用全面的过程模拟已被比较为独立系统和集成系统。研究表明，与独立的LOHC系统相比，“温度级联”脱氢可将集成系统中每单位质量（kWh / kg LOHC）产生的能量增加1.3–2倍，从而为LOHC-氢供应链。