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Innovative technology for underground clean in situ hydrogen generation: Experimental and numerical insights for sustainable energy transition

Author

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  • Askarova, Aysylu
  • Alekhina, Tatiana
  • Popov, Evgeny
  • Afanasev, Pavel
  • Mukhametdinova, Aliya
  • Smirnov, Alexey
  • Cheremisin, Alexey
  • Mukhina, Elena

Abstract

Hydrogen production in subsurface reservoirs attracts global research interest for its potential in sustainable energy generation and climate change mitigation. However, limited experimental data make optimizing in situ hydrogen generation (ISHG) processes under reservoir conditions challenging. ISHG combines reverse methane combustion with steam methane reforming (SMR), leveraging existing reservoir infrastructure to generate hydrogen efficiently while minimizing surface emissions. The primary objective is to enhance hydrogen yield by investigating key variables, such as catalyst type, water saturation, and cyclic operational modes. Results indicate that cyclic combustion followed by SMR can boost hydrogen yield by up to 68 % in controlled reservoir settings, utilizing combustion heat to drive reactions efficiently.

Suggested Citation

  • Askarova, Aysylu & Alekhina, Tatiana & Popov, Evgeny & Afanasev, Pavel & Mukhametdinova, Aliya & Smirnov, Alexey & Cheremisin, Alexey & Mukhina, Elena, 2025. "Innovative technology for underground clean in situ hydrogen generation: Experimental and numerical insights for sustainable energy transition," Renewable Energy, Elsevier, vol. 240(C).
  • Handle: RePEc:eee:renene:v:240:y:2025:i:c:s0960148124023279
    DOI: 10.1016/j.renene.2024.122259
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