Gas: heating and illuminating – Generators
Patent
1997-07-10
1998-10-06
Bhat, Nina
Gas: heating and illuminating
Generators
48 65, 48204, 422211, 422239, B01J 700, B01J 802, C10J 318
Patent
active
058171576
ABSTRACT:
A demand type portable hydrogen generation system operated to replenish hydrogen gas to a storage tank or vessel as hydrogen is drawn therefrom. The system employs electrical and mechanical arrangements for opening an outer coating of a pellet that has been formed over a reactive material, such as sodium, to expose that pellet reactive material to water, and generate hydrogen gas from a chemical reaction between which reactive material and water. An electrical system variation of the system employs a bank of cells where each cell is electrically connected through a controller to a power source with the vessel to contain a measured volume of a light salt and water solution with an aluminum coated sodium pellet or pellet coated with another appropriate metal positioned therein, and provides for passing an electrical current to a select cell to break down the aluminum coating of a pellet contained therein and expose the pellet reactive material to the water, generating hydrogen. In a mechanical system variation of the system, sodium pellets are individually coated with a water impervious soft plastic, or like material, and are maintained in water contained in the vessel and including an arrangement for opening the pellet water impervious coating a when hydrogen gas pressure in the vessel falls below the pressure of a static source to open a pellet to the vessel water and chemical react therewith to generate hydrogen gas to restore system pressure to a pressure that is greater than that of the static source.
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Sodium Hydride "Inorganic Syntheses", Chapter 2, Sodium Dispersions Submitted by T.P. Whaley, checked by C.C. Chappelow, Jr. pp. 6-13.
Article submitted to Chemical and Engineering News "The Production of Sodium Hydride and Some of Its Reactions" by V.L. Hansley and P.J. Carlisle, Technical Division, du Pont, pp. 1332-1333, 1380.
The Kirk Othmer Encyclopedia of Chemical Technology Third Edition, vol. 21 pp. 181-203 "Sodium and Sodium Alloys".
Bhat Nina
Russell M. Reid
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