System for exchange of hydrogen between liquid and solid phases

Patent · Fri Feb 22 04:00:00 EST 1985

OSTI ID:5598250

Reilly, J J; Grohse, E W; Johnson, J R; Winsche, W E

The reversible reaction M + x/2 H/sub 2/ reversible 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 particle. 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.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE86013778
• OSTI ID: 5598250
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080201* -- Hydrogen-- Chemisorption Storage
ADSORPTION
ALKANES
DISPERSIONS
ELEMENTS
HYDRIDES
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
METALS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
PARTICLES
SLURRIES
SOLVENTS
SORPTION
STORAGE
SUSPENSIONS