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Hydrogen storage and fuel processing strategies

Proceedings article published in 2011 by Callum Campbell
This paper is available in a repository.
This paper is available in a repository.

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Preprint: policy unknown
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Postprint: policy unknown
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Published version: policy unknown

Abstract

The purpose of the work is to study the use of Liquid Organic Hydrogen Carriers (LOHCs) as hydrogen storage media with a focus on vehicular applications, and to assess the viability of a chosen fuel against appropriate base cases such as fossil fuels. LOHCs are organic substances which can be hydrogenated for hydrogen storage and transport, and then dehydrogenated under catalytic conditions where the hydrogen fuel is needed. The depleted organic carrier can then be recycled. Such systems can be manipulated to power fuel cells or Internal Combustion Engines (ICEs), or to store hydrogen as a seasonal energy buffer for electricity production. The major advantage of this system over other hydrogen storage strategies is that LOHCs such as methylcyclohexane share similar physical properties with liquid fossil fuels used in vehicles today, so the existing fuel infrastructure can be used with relatively few changes and only minor investment. The approach of this project is largely literature based, and will involve detailed study and analysis of existing research, existing and future markets, and the fabrication of a potential business plan for the use of LOHCs as a widespread low-carbon fuel. However, despite being strongly literature based, the project is nonetheless innovative in that it will produce, for the first time, recommendations on how hydrogen storage using liquid organics could be implemented on the demonstration scale. This work is extremely relevant in that it aims to make real recommendations as to how a low-carbon technology could be implemented, firstly on the demonstration scale, and eventually as part of a low-carbon (hydrogen) economy.