Abstract

Chemical conversion is a key technology for hydrogen storage. Two basic options exist in this field: reversible storage using organic carrier materials (energy carrying compounds) and irreversible conversion into hydrocarbon fuels (gas-to-fuel). It has been shown that reversible storage exhibits significantly higher overall storage efficiency for the electricity-to-electricity storage process. The high storage density and existing infrastructure for hydrocarbon fuels are advantages of the Fischer-Tropsch-process whereas process complexity favors reversible conversion.