Thermochemical generation of hydrogen and oxygen from water

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863922

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

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1. Knoxville, TN
2. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4276279
• OSTI ID: 863922
• Country of Publication: United States
• Language: English

Related Subjects

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
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