Hydrogen according to Isabelle Moretti – Sciences et Avenir

INEDIT. For the first time in its history, the scientific community interested in natural hydrogen emissions is meeting digitally on June 2nd and 3rd to International Congress H-Nat 2021. Researchers will review potential deposits on the world’s surface and prospects for harnessing clean and potentially renewable energy. Researcher from the University of Pau, Isabelle Moretti, analyzes the potential of natural hydrogen. A member of the Academy of Technology, she was one of our interlocutors in the file “Hydrogen solution” from edition 889 Sciences et Avenir – Research, from March 2021.

“A century ago we produced city gas by burning coal, then large reserves of natural gas were found and almost everywhere we stopped the production of this industrial gas which was more expensive than natural gas, whose production was energy intensive and polluting and which contained highly toxic carbon monoxide.Can the same evolution happen for hydrogen? No doubt, but obviously, as always with natural resources, not everywhere.Hydrogen is produced on the planet every day: rocks oxidize in contact with water (H2O), retain oxygen and release hydrogen2) “.

“Random Discoveries” from a hydrogen source

“A phenomenon known for forty years on ocean reefs – those chains of submarine volcanoes that form oceans – but we realize it’s happening on land as well. After accidental discoveries of water-seeking drills, such as in Mali, or hydrocarbons, in the United States or Australia Scientists, engineers, industrialists.Data from Mali, where the production of natural hydrogen began seven years ago.for years to produce electricity for the neighboring village, show that the pressure in the well seems not to decrease, which means that the reservoir is constantly filling.Geological contexts favorable for the discovery of natural sources of hydrogen appear as research progresses ”.

“Renewable and cheap hydrogen will complement the one produced by electrolyzers”

“These are, on the one hand, regions where the rocks from the earth’s mantle are in contact either with seawater, at the level of ocean reefs, or with rainwater, as in the African rift or in Iceland. Then, in regions where ancient oceanic crusts are exposed to phenomena compression (Oman, New Caledonia, etc.) Finally, near rocks rich in metal ions like iron on very old parts of the continental crust like those found in Australia, Russia, the United States or Brazil.This renewable and inexpensive hydrogen will complement the one that produced by electrolyzers. This promises a bright future for hydrogen. “

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