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Experimental study of CO2 sequestration and H2 generation potential through mineral carbonation in Saudi red mud

Khaled Al-Azani1, Mohamed Gamal Rezk2, Ahmed Farid Ibrahim3,4

  • 1Department of Petroleum Engineering, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia.

Scientific Reports
|December 17, 2025
PubMed
Abstract

No abstract available in PubMed .

Keywords:
CO2 mineralizationCarbon dioxide removalGeochemical reactionHydrogen generationRed mudWaste management

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Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
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