| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a means capable of remarkably improving the durability of a hydrogen production device employing a high temperature water vapor electrolysis in which a reducing gas is fed to the anode side of an electrolytic cell. <P>SOLUTION: In the hydrogen production method, using a solid oxide electrolyte, a reducing gas is fed to the anode side, high temperature water vapor is fed to the cathode side, oxygen ions are reacted with the reducing gas at the anode side to produce a concentration gradient of the oxygen ions, and electrolytic voltage is reduced, the reducing gas is fed to the anode side after treatment by a sulfur removal apparatus. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
