Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Hydrogen component
Patent
1985-02-22
1988-09-06
Stoll, Robert L.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Hydrogen component
423644, 4236481, 420900, C01B 350
Patent
active
047692251
ABSTRACT:
The reversible reaction M+x/2 H.sub.2 .rarw..fwdarw.MH.sub.x, wherein M is a reversible metal hydride former that forms a hydride MH.sub.x in the presence of H.sub.2, generally used to store and recall H.sub.2, is found to proceed under an inert liquid, thereby reducing contamination, providing better temperature control, providing in situ mobility of the reactants, and increasing flexibility in process design. Thus, a slurry of particles of a metal hydride former with an inert solvent is subjected to a temperature and pressure controlled atmosphere containing H.sub.2, to store hydrogen and to release previously stored hydrogen. The direction of the flow of the H.sub.2 through the liquid is dependent upon the H.sub.2 pressure in the gas phase at a given temperature. When the actual H.sub.2 pressure is above the equilibrium absorption pressure of the respective hydride the reaction proceeds to the right, i.e., the metal hydride is formed and hydrogen is stored in the solid particles. When the actual pressure in the gas phase is below the equilibrium dissociation pressure of the respective hydride the reaction proceeds to the left, the metal hydride is decomposed and hydrogen is released into the gas phase.
REFERENCES:
patent: 4360505 (1982-11-01), Sheridan et al.
Grohse Edward W.
Johnson John R.
Reilly James J.
Winsche, deceased Warren E.
Bogosian Margaret C.
Hightower Judson R.
Stoll Robert L.
The United States of America as represented by the United States
Weinberger James W.
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