(405b) High Temperature Solid-Oxide Electrolyzer 2500 Hour Test Results at the Idaho National Laboratory
AIChE Annual Meeting
2009
2009 Annual Meeting
Hydrogen Production for a Hydrogen Economy
Developments in Electrolytic Routes to Hydrogen
Wednesday, November 11, 2009 - 12:55pm to 1:20pm
The Idaho National Laboratory (INL) has been developing the concept of using solid oxide fuel cells as electrolyzers for large-scale, high-temperature (efficient), hydrogen production. This program is sponsored by the U.S. Department of Energy under the Nuclear Hydrogen Initiative. Utilizing a fuel cell as an electrolyzer introduces some inherent differences in cell operating conditions. In particular, the performance of fuel cells operated as electrolyzers degrades with time faster. This issue of electrolyzer cell and stack performance degradation over time has been identified as a major barrier to technology development. Consequently, the INL has been working together with Ceramatec, Inc. (Salt Lake City, Utah) to improve the long-term performance of high temperature electrolyzers. As part of this research partnership, the INL has been conducting a 2500 hour test of a Ceramatec designed and produced stack operated in the electrolysis mode. This paper will provide a summary of experimental results to date for this ongoing test.
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