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Title: Thermochemical generation of hydrogen and oxygen from water

Abstract

A thermochemical cyclic process for the production of hydrogen exploits the reaction between sodium manganate (NaMnO.sub.2) and titanium dioxide (TiO.sub.2) to form sodium titanate (Na.sub.2 TiO.sub.3), manganese (II) titanate (MnTiO.sub.3) and oxygen. The titanate mixture is treated with sodium hydroxide, in the presence of steam, to form sodium titanate, sodium manganate (III), water and hydrogen. The sodium titanate-manganate (III) mixture is treated with water to form sodium manganate (III), titanium dioxide and sodium hydroxide. Sodium manganate (III) and titanium dioxide are recycled following dissolution of sodium hydroxide in water.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863922
Patent Number(s):
4276279
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermochemical; generation; hydrogen; oxygen; water; cyclic; process; production; exploits; reaction; sodium; manganate; namno; titanium; dioxide; form; titanate; na; manganese; ii; mntio; mixture; treated; hydroxide; presence; steam; iii; titanate-manganate; recycled; following; dissolution; thermochemical cyclic; sodium hydroxide; sodium titanate; titanium dioxide; sodium manganate; cyclic process; form sodium; thermochemical generation; hydrogen exploits; /423/

Citation Formats

Robinson, Paul R., and Bamberger, Carlos E. Thermochemical generation of hydrogen and oxygen from water. United States: N. p., 1981. Web.
Robinson, Paul R., & Bamberger, Carlos E. Thermochemical generation of hydrogen and oxygen from water. United States.
Robinson, Paul R., and Bamberger, Carlos E. Thu . "Thermochemical generation of hydrogen and oxygen from water". United States. https://www.osti.gov/servlets/purl/863922.
@article{osti_863922,
title = {Thermochemical generation of hydrogen and oxygen from water},
author = {Robinson, Paul R. and Bamberger, Carlos E.},
abstractNote = {A thermochemical cyclic process for the production of hydrogen exploits the reaction between sodium manganate (NaMnO.sub.2) and titanium dioxide (TiO.sub.2) to form sodium titanate (Na.sub.2 TiO.sub.3), manganese (II) titanate (MnTiO.sub.3) and oxygen. The titanate mixture is treated with sodium hydroxide, in the presence of steam, to form sodium titanate, sodium manganate (III), water and hydrogen. The sodium titanate-manganate (III) mixture is treated with water to form sodium manganate (III), titanium dioxide and sodium hydroxide. Sodium manganate (III) and titanium dioxide are recycled following dissolution of sodium hydroxide in water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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