skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System for exchange of hydrogen between liquid and solid phases

Abstract

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 themore » gas phase.« less

Inventors:
; ; ;
Issue Date:
Research Org.:
Brookhaven National Lab., Upton, NY (USA)
OSTI Identifier:
5598250
Application Number:
ON: DE86013778
Assignee:
Dept. of Energy TIC; ERA-11-003984; EDB-86-134528
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; HYDROGEN STORAGE; ADSORPTION; ALKANES; HYDRIDES; HYDROGEN; METALS; PARTICLES; SLURRIES; SOLVENTS; DISPERSIONS; ELEMENTS; HYDROCARBONS; HYDROGEN COMPOUNDS; MIXTURES; NONMETALS; ORGANIC COMPOUNDS; SORPTION; STORAGE; SUSPENSIONS; 080201* - Hydrogen- Chemisorption Storage

Citation Formats

Reilly, J.J., Grohse, E.W., Johnson, J.R., and Winsche, W.E. System for exchange of hydrogen between liquid and solid phases. United States: N. p., 1985. Web.
Reilly, J.J., Grohse, E.W., Johnson, J.R., & Winsche, W.E. System for exchange of hydrogen between liquid and solid phases. United States.
Reilly, J.J., Grohse, E.W., Johnson, J.R., and Winsche, W.E. Fri . "System for exchange of hydrogen between liquid and solid phases". United States.
@article{osti_5598250,
title = {System for exchange of hydrogen between liquid and solid phases},
author = {Reilly, J.J. and Grohse, E.W. and Johnson, J.R. and Winsche, W.E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {2}
}