Abstract
Production of hydrogen by using geothermal energy was investigated. Georeactor is one of advanced direct use for chemical reactions to produce hydrogen and material conversion. Hydrogen sulfide (H 2S, HS - and S 2-) has great potential to produce hydrogen under hydrothermal condition, however, oxidized sulfur species such as SO 4 2- and S 2O 3 2- were produced as by-product of generation of hydrogen. Some of organic compounds and urea had possibilities to reduce oxidized sulfur species into reduced sulfur species to reproduce hydrogen. We carried out hydrothermal experiments involving two reaction steps which were production of hydrogen and reduction of sulfur oxidized species. We can obtain over 40% conversion rate to produce hydrogen under hydrothermal condition by using the lab-scale georeactor.
| Original language | English |
|---|---|
| Title of host publication | Geothermal Resources Council Annual Meeting 2011, Geothermal 2011 |
| Pages | 143-146 |
| Number of pages | 4 |
| Volume | 35 1 |
| Publication status | Published - 2011 Dec 1 |
| Event | Geothermal Resources Council Annual Meeting 2011, Geothermal 2011 - San Diego, CA, United States Duration: 2011 Oct 23 → 2011 Oct 26 |
Other
| Other | Geothermal Resources Council Annual Meeting 2011, Geothermal 2011 |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 11/10/23 → 11/10/26 |
Keywords
- Direct use
- Geothermal
- Hydrogen
- Hydrothermal reaction
- Material conversion
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Geophysics
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