Method for storing energy in the form of hydrazine carbonate
AssigneeSchaeffler Technologies AG & Co. KG
InventorsWalter Holweger, Moritz Wegener, Yashar Musayev
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Abstract
Energy storage is accomplished by producing hydrazine carbonate and later reconverting the hydrazine carbonate to release the energy. Sea water is firstly used in an electrolysis process to prepare hypochlorite. The hypochlorite reacts as a result of introduction of ammonia to produce monochloramine and then hydrazine. The hydrazine reacts as a result of introduction of carbon dioxide to give hydrazine carbonate. To release the energy, the hydrazine carbonate liberates hydrogen or at least a hydrogen-containing gas by reaction over a noble metal-free catalyst. The hydrogen may then be enriched before being fed to a fuel cell.
Claims13
A process for storing energy in the form of hydrazine carbonate and subsequently reconverting the hydrazine carbonate into usable energy,
- wherein an electrolysis process uses sea water to prepare hypochlorite, wherein the hypochlorite reacts as a result of introduction of ammonia via the formation of monochloramine to give hydrazine and wherein the hydrazine subsequently reacts as a result of introduction of carbon dioxide to give hydrazine carbonate, and wherein the hydrazine carbonate liberates H2 or at least a gas containing H2 by reaction in the presence of a noble metal-free catalyst.
A process for storing and releasing energy comprising:
- storing energy by conducting an electrolysis process to prepare hypochlorite from sea water;
- introducing ammonia which reacts with the hypochlorite to form hydrazine;
- introducing carbon dioxide which react with the hydrazine to give hydrazine carbonate;
- and
- reacting the hydrazine carbonate in the presence of a noble metal-free catalyst to liberate H2 or gas containing H2.
Dependencies are inferred from the claim text.