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US 2014/0154172 A1Published application
Two step novel hydrogen system using additives to enhance hydrogen release from the hydrolysis of alane and activated aluminum
AssigneeSavannah River Nuclear Solutions, LLC
InventorsRagaiy Zidan, Joseph A. Teprovich, Theodore Motyka
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Abstract
A system for the generation of hydrogen for use in portable power systems is set forth utilizing a two-step process that involves the thermal decomposition of AlH3 (10 wt % H2) followed by the hydrolysis of the activated aluminum (Al*) byproduct to release additional H2. Additionally, a process in which water is added directly without prior history to the AlH3:PA composite is also disclosed,
Claims9
A process of generating hydrogen comprising the steps of:
- providing a source of AlH3;
- heating the AlH3 to a temperature of at least about 150° and more preferably to a temperature of between about 185° C. and about 200° C., thereby forming a reaction products consisting of a fast hydrogen gas and activated aluminum;
- and,
- adding a promoter to the activated aluminum reaction product, the promoter being selected from the group consisting of NaAlH4, NaH, and NaOH to provide a composite material;
- adding a stoichiometric amount of water to the composite material, thereby, generating a second hydrogen gas source.
2 more elements
The process of providing hydrogen comprising the steps of:
- providing a source of AlH3;
- adding a promoter to the AlH3, the promoter selected from the group consisting of NaAlH4, NaH, NaOH and combinations thereof to provide a composite material;
- adding water to the composite material, thereby generating a hydrogen gas reaction product.
Dependencies are inferred from the claim text.