| US 7,491,309 B2 | ||
| System and method for the production of hydrogen | ||
| Andrew Maxwell Peter, Saratoga Springs, N.Y. (US); Chellappa Balan, Niskayuna, N.Y. (US); James Anthony Ruud, Delmar, N.Y. (US); Stephane Renou, Clifton Park, N.Y. (US); and Kenneth Walter Browall, Saratoga Springs, N.Y. (US) | ||
| Assigned to General Electric Company, Niskayuna, N.Y. (US) | ||
| Filed on Dec. 21, 2005, as Appl. No. 11/314,137. | ||
| Prior Publication US 2007/0138022 A1, Jun. 21, 2007 | ||
| Int. Cl. C25C 7/06 (2006.01) | ||
| U.S. Cl. 205—629 [205/630; 205/634; 205/637; 205/638; 204/263; 204/265; 204/266; 204/253; 204/258] | 36 Claims |
| 19. A method comprising:
generating steam at a temperature of about 700 to about 900° C. and a pressure of about 3 to about 20 kg/cm2 using a high temperature heat source;
electrolyzing the steam to form hydrogen and oxygen in a solid oxide electrolyzer cell;
extracting heat from the hydrogen and steam to heat air in a heat exchanger; and
sweeping the oxygen from an anode side of the solid oxide electrolyzer cell to a turbine; wherein the sweeping the oxygen
is conducted with compressed air generated in a compressor.
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