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Title: Hydrogen, lithium, and lithium hydride production

Abstract

A method is provided for extracting hydrogen from lithium hydride. The method includes (a) heating lithium hydride to form liquid-phase lithium hydride; (b) extracting hydrogen from the liquid-phase lithium hydride, leaving residual liquid-phase lithium metal; (c) hydriding the residual liquid-phase lithium metal to form refined lithium hydride; and repeating steps (a) and (b) on the refined lithium hydride.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1364632
Patent Number(s):
9,682,859
Application Number:
14/171,801
Assignee:
Consolidated Nuclear Security, LLC Y-12
DOE Contract Number:
AC05-00OR22800
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Feb 04
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN

Citation Formats

Brown, Sam W., Spencer, Larry S., Phillips, Michael R., Powell, G. Louis, and Campbell, Peggy J. Hydrogen, lithium, and lithium hydride production. United States: N. p., 2017. Web.
Brown, Sam W., Spencer, Larry S., Phillips, Michael R., Powell, G. Louis, & Campbell, Peggy J. Hydrogen, lithium, and lithium hydride production. United States.
Brown, Sam W., Spencer, Larry S., Phillips, Michael R., Powell, G. Louis, and Campbell, Peggy J. Tue . "Hydrogen, lithium, and lithium hydride production". United States. doi:. https://www.osti.gov/servlets/purl/1364632.
@article{osti_1364632,
title = {Hydrogen, lithium, and lithium hydride production},
author = {Brown, Sam W. and Spencer, Larry S. and Phillips, Michael R. and Powell, G. Louis and Campbell, Peggy J.},
abstractNote = {A method is provided for extracting hydrogen from lithium hydride. The method includes (a) heating lithium hydride to form liquid-phase lithium hydride; (b) extracting hydrogen from the liquid-phase lithium hydride, leaving residual liquid-phase lithium metal; (c) hydriding the residual liquid-phase lithium metal to form refined lithium hydride; and repeating steps (a) and (b) on the refined lithium hydride.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 20 00:00:00 EDT 2017},
month = {Tue Jun 20 00:00:00 EDT 2017}
}

Patent:

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  • A method of producing high purity lithium metal is provided, where gaseous-phase lithium metal is extracted from lithium hydride and condensed to form solid high purity lithium metal. The high purity lithium metal may be hydrided to provide high purity lithium hydride.
  • The present invention provides a cost-effective method of producing pure hydrogen gas from hydride-based solid materials. The hydride-based solid material is mechanically processed in the presence of a catalyst to obtain pure gaseous hydrogen. Unlike previous methods, hydrogen may be obtained from the solid material without heating, and without the addition of a solvent during processing. The described method of hydrogen production is useful for energy conversion and production technologies that consume pure gaseous hydrogen as a fuel.
  • A method of producing H2 and C2H2 gases comprises the steps of drying a hydrocarbon biomass material to remove water without carbonization, reacting the dried hydrocarbon biomass with a stoichiometric excess of molten lithium metal to produce lithium salts comprising LiH and Li2C2 and then hydrolyzing the lithium salts to produce a gaseous mixture comprising H2 and C2H2.
  • A description is given of a method of utilizing lithium borohydride for the storage and generation of hydrogen where the lithium borohydride is thermally decomposed to generate hydrogen and the remaining decomposition products (Contaning boron in free or combined form and lithium in free or combined form) are hydrogenated from a separate source of hydrogen so as to reconstitute at least partially the composition as a hydrogen reserve. A further embodiment contemplates the utilization of aluminum in the composition which lowers the reconstitution temperature and increases the hydrogen capacity of the hydrogen reserve.