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Liquid Organic Hydrogen Carriers - A Technology to Overcome Common Risks of Hydrogen Storage


In transport and storage of hydrogen the risks are mainly seen in its volatile nature, its ability to form explosive mixtures with air and the harsh conditions (high pressure or low temperature) for efficient storage. The concept of Liquid Organic Hydrogen Carriers (LOHC) offers a technology to overcome the above mentioned threats. The present submission describes the basics of the LOHC technology. It contains a comparison of a selection of common LOHC materials with a view on physical properties. The advantages of a low viscosity at low temperatures and a high flash point are expressed. LOHCs are also discussed as a concept to import large amounts of energy/hydrogen. A closer look is taken on the environmental and safety aspects of hydrogen storage in LOHCs since here the main differences to pressurized and cryo-storage of hydrogen can be found. The aim of this paper is to provide an overview of the principles of the LOHC technology, the different LOHC materials and their risks and opportunities, and an impression of a large scale scenario on the basis of the LOHC technology.

Related subjects: Safety
Countries: Germany

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