| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problems: conventional electrolysis of high temperature steam requires the separation of hydrogen and steam because hydrogen-enriched steam and high temperature pure oxygen are generated and the recovery of the oxygen is difficult in the conventional electrolysis of high temperature steam. SOLUTION: A steam electrolyzing apparatus 10 is constituted of a hydrogen pole chamber 11 having a hydrogen pole 14, an oxygen pole chamber 12 having an oxygen pole 15, and a proton-conductive solid electrolyte 13. Water supplied from a water supply part 1 is converted into high temperature steam in a temperature raising part 2, and the high temperature steam is supplied to the oxygen pole chamber 12. An electric power is supplied to the steam electrolyzing apparatus 10 from a power source 5, and steam electrolysis is performed in the apparatus 10. Hydrogen gas is generated in the hydrogen pole chamber 11, and oxygen-enriched steam wherein oxygen and high temperature steam are mixed is generated in the oxygen pole chamber 12. Since hydrogen and the oxygen-enriched steam are generated, the separation of hydrogen and steam is not required, and the reduction of partial pressure of oxygen is not required. COPYRIGHT: (C)2008,JPO&INPIT
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