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US 9,868,636 B1Granted
Thermochemically active iron titanium oxide materials
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorsEric Nicholas Coker, James E. Miller
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Abstract
A thermal oxidation-reduction cycle is disclosed that uses iron titanium oxide as the reactive material. The cycle may be used for the thermal splitting of water and/or carbon dioxide to form hydrogen and/or carbon monoxide. The formed compounds may be used as syngas precursors to form fuels.
Claims12
A method for generating a fuel or fuel precursor, comprising:
- thermally reducing a mixture comprising ferric pseudobrookite and rutile not in the presence of a fuel to a reduced iron titanium oxide with an atomic ratio of iron to titanium of 1:1 and oxygen by heating the mixture with concentrated solar energy to react the ferric pseudobrookite and rutile;
- reacting the reduced iron titanium oxide with a reactant to form a product and ferric pseudobrookite.
A concentrated solar energy thermal cycle method, comprising:
- heating a mixture comprising ferric pseudobrookite and rutile not in the presence of a fuel to a reduction temperature by concentrated solar energy to cause a reduction reaction between the ferric pseudobrookite and rutile to produce reduced iron titanium oxide with a ratio of iron to titanium of 1:1;
- and
- reducing a feedstock material by reacting the feedstock material with the reduced iron titanium oxide to form a product material and ferric pseudobrookite;
- and
- repeating the heating and reducing steps.
2 more elements
Dependencies are inferred from the claim text.