Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5779285 | Procedia Earth and Planetary Science | 2017 | 4 Pages |
Abstract
Natural hydrogen is a promising energy source, but its economic viability remains to be assessed. The present study consists in a modeling methodology applied to hydrogen genesis in Oman ophiolite. With the use of several fluid-rock interactions codes, we modeled groundwaters in fractured harzburgites. The hydrogeological system considered is the following: shallow circulations (above 50m-deep) lead to alkaline springs and fuel deeper flows responsible for serpentinization and hydrogen generation. Numerical results were compared with field data (water compositions, mineralogy, etc.), and a good agreement was obtained. An interesting point evidenced by our model is the major role played by carbonates in this system. Where present, these minerals act as carbon buffers, and lead to formation of methane rather than hydrogen.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Pierre Bachaud, Clémentine Meiller, Etienne Brosse, Isabelle Durand, Valérie Beaumont,