Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1996-01-02
1998-03-17
Bhat, Nina
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428407, 149 5, 149 6, 149 7, B32B 516, C06B 4530, C06B 4532
Patent
active
057284644
ABSTRACT:
Hydrogen generation system of the present invention are all demand systems that are operated to replenish hydrogen gas to a low pressure storage tank or vessel as hydrogen is drawn therefrom, providing a system that is suitable for use as a portable system. The invention employs electrical and mechanical arrangements that provide for opening an outer coating that has been formed over a reactive material, such as sodium, so as to expose that reactive material to water, generating hydrogen from a chemical reaction therebetween. The electrical system employs a bank of cells, with each cell electrically connected through a controller to a power source and contains a measured volume of a light salt and water solution and a sodium pellet that is coated with aluminum, or other appropriate metal, and provides for passing a current to a select cell to break down the pellet aluminum coating and expose the pellet reactive material to the water to generate hydrogen. Sodium pellets are coated with a soft plastic, or the like, and are maintained in water and include a static pressure source to operate, when the hydrogen gas pressure falls below the pressure of that static source, a piston to move a selected pellet into a blade, or the like, to open that pellet to the water to chemical react and generate hydrogen gas to restore the 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, copyright 1945.
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, 1945.
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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