Thermochemical generation of hydrogen and oxygen from water

Robinson, Paul R; Bamberger, Carlos E

Title: Thermochemical generation of hydrogen and oxygen from water

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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:

Robinson, Paul R ^[1]; Bamberger, Carlos E ^[2]

Knoxville, TN
Oak Ridge, TN

Issue Date:: 1981-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 863922

Patent Number(s):: 4276279

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B3/068 - {the hydrogen being generated from the water as a result of a cyclus of reactions, not covered by groups C01B3/063 or C01B3/105}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G23/005 - {Alkali titanates}
C01G45/1228 - {of the type [MnO2]n- , e.g. LiMnO2, Li[MxMn1-x]O2}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/36 - Hydrogen production from non-carbon containing sources

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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.

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                    Robinson, Paul R, & Bamberger, Carlos E. Thermochemical generation of hydrogen and oxygen from water.  United States.

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                    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.

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@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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Thermochemical generation of hydrogen and oxygen from water

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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.
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