Nuclear Hydrogen Production Based on the Hybrid Sulfur Thermochemical Process
- Savannah River National Laboratory, 773-42A, Aiken, SC 29808 (United States)
Two Sulfur cycles - the Sulfur-Iodine (SI) and the Hybrid Sulfur (HyS) - have emerged as the leading thermochemical processes for making hydrogen using heat provided by advanced nuclear reactors. Numerous international efforts have been underway for several years to develop the SI cycle, but development of the HyS has lagged behind. Savannah River National Laboratory (SRNL) has been tasked by the U.S. Department of Energy Office of Nuclear Energy, Science and Technology with development of the HyS cycle since 2004. This paper discusses the background, current status, recent development results, and the future potential for the HyS process. Process design studies suggest that a net thermal efficiency of over 50% (higher heating value basis) is possible with HyS. Economic studies indicate that a nuclear hydrogen plant based on this process can be economically competitive, assuming that the sulfur dioxide-depolarized electrolyzer can be successfully developed. SRNL has demonstrated the use of a proton exchange membrane cell to perform this function, thus holding promise for economic and efficient hydrogen production. (authors)
- Research Organization:
- American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 21016431
- Resource Relation:
- Conference: 2006 International congress on advances in nuclear power plants - ICAPP'06, Reno - Nevada (United States), 4-8 Jun 2006; Other Information: Country of input: France; 8 refs; Related Information: In: Proceedings of the 2006 international congress on advances in nuclear power plants - ICAPP'06, 2734 pages.
- Country of Publication:
- United States
- Language:
- English
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