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

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.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Bellport, NY)
  2. (Port Jefferson Station, NY)
  3. (Calverton, NY)
  4. (late of Bellport, NY)
Issue Date:
Research Org.:
ASSOC UNIVERSITIES INC
OSTI Identifier:
866712
Patent Number(s):
4769225
Assignee:
United States of America as represented by United States (Washington, DC) BNL
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
exchange; hydrogen; liquid; solid; phases; reversible; reaction; rarw; fwdarw; mh; metal; hydride; former; forms; presence; store; recall; found; proceed; inert; reducing; contamination; providing; temperature; control; situ; mobility; reactants; increasing; flexibility; process; design; slurry; particles; solvent; subjected; pressure; controlled; atmosphere; containing; release; previously; stored; direction; flow; dependent; gas; phase; equilibrium; absorption; respective; proceeds; formed; below; dissociation; left; decomposed; released; atmosphere containing; controlled atmosphere; inert liquid; temperature control; gas phase; solid particles; metal hydride; solid phase; solid particle; dissociation pressure; inert solvent; previously stored; pressure control; pressure controlled; process design; /423/420/

Citation Formats

Reilly, James J., Grohse, Edward W., Johnson, John R., and Winsche, deceased, Warren E. System for exchange of hydrogen between liquid and solid phases. United States: N. p., 1988. Web.
Reilly, James J., Grohse, Edward W., Johnson, John R., & Winsche, deceased, Warren E. System for exchange of hydrogen between liquid and solid phases. United States.
Reilly, James J., Grohse, Edward W., Johnson, John R., and Winsche, deceased, Warren E. Fri . "System for exchange of hydrogen between liquid and solid phases". United States. https://www.osti.gov/servlets/purl/866712.
@article{osti_866712,
title = {System for exchange of hydrogen between liquid and solid phases},
author = {Reilly, James J. and Grohse, Edward W. and Johnson, John R. and Winsche, deceased, Warren E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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