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Title: Process for producing hydrogen from water using cobalt and barium compounds

Abstract

A thermochemical process for producing hydrogen comprises the step of reacting CoO with BaO or Ba(OH).sub.2 in the presence of steam to produce H.sub.2 and novel double oxides of Ba and Co having the empirical formulas BaCoO.sub.2.33 and Ba.sub.2 CoO.sub.3.33. The double oxide can be reacted with H.sub.2 O to form Co.sub.3 O.sub.4 and Ba(OH).sub.2 which can be recycled to the original reaction. The Co.sub.3 O.sub.4 is converted to CoO by either of two procedures. In one embodiment Co.sub.3 O.sub.4 is heated, preferably in steam, to form CoO. In another embodiment Co.sub.3 O.sub.4 is reacted with aqueous HCl solution to produce CoCl.sub.2 and Cl.sub.2. The CoCl.sub.2 is reacted with H.sub.2 O to form CoO and HCl and the CoO is recycled to the initial reaction step. The Cl.sub.2 can be reacted with H.sub.2 O to produce HCl. HCl can be recycled for reaction with Co.sub.3 O.sub.4.

Inventors:
 [1]
  1. Oak Ridge, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863475
Patent Number(s):
US 4180555
Assignee:
United States of America as represented by United States (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; producing; hydrogen; water; cobalt; barium; compounds; thermochemical; comprises; step; reacting; coo; bao; oh; presence; steam; produce; novel; double; oxides; empirical; formulas; bacoo; 33; oxide; reacted; form; recycled; original; reaction; converted; procedures; embodiment; heated; preferably; aqueous; hcl; solution; cocl; initial; producing hydrogen; chemical process; reaction step; hydrogen comprises; thermochemical process; aqueous hcl; initial reaction; hcl solution; form coo; /423/

Citation Formats

Bamberger, Carlos E, and Richardson, deceased, Donald M. Process for producing hydrogen from water using cobalt and barium compounds. United States: N. p., 1979. Web.
Bamberger, Carlos E, & Richardson, deceased, Donald M. Process for producing hydrogen from water using cobalt and barium compounds. United States.
Bamberger, Carlos E, and Richardson, deceased, Donald M. Mon . "Process for producing hydrogen from water using cobalt and barium compounds". United States. https://www.osti.gov/servlets/purl/863475.
@article{osti_863475,
title = {Process for producing hydrogen from water using cobalt and barium compounds},
author = {Bamberger, Carlos E and Richardson, deceased, Donald M.},
abstractNote = {A thermochemical process for producing hydrogen comprises the step of reacting CoO with BaO or Ba(OH).sub.2 in the presence of steam to produce H.sub.2 and novel double oxides of Ba and Co having the empirical formulas BaCoO.sub.2.33 and Ba.sub.2 CoO.sub.3.33. The double oxide can be reacted with H.sub.2 O to form Co.sub.3 O.sub.4 and Ba(OH).sub.2 which can be recycled to the original reaction. The Co.sub.3 O.sub.4 is converted to CoO by either of two procedures. In one embodiment Co.sub.3 O.sub.4 is heated, preferably in steam, to form CoO. In another embodiment Co.sub.3 O.sub.4 is reacted with aqueous HCl solution to produce CoCl.sub.2 and Cl.sub.2. The CoCl.sub.2 is reacted with H.sub.2 O to form CoO and HCl and the CoO is recycled to the initial reaction step. The Cl.sub.2 can be reacted with H.sub.2 O to produce HCl. HCl can be recycled for reaction with Co.sub.3 O.sub.4.},
doi = {},
url = {https://www.osti.gov/biblio/863475}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

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