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Article Dans Une Revue (Article De Synthèse) Physical Review Letters Année : 2024

Chemically Enhanced Convective Dissolution of CO2

Résumé

Convective dissolution, one of the main mechanisms for geological storage of CO_{2}, occurs when supercritical or gas CO_{2} dissolves partially into an aqueous solution, thus triggering downward convection of the denser CO_{2}-enriched liquid. Chemical reaction in the liquid can greatly enhance the process. Here, experimental measurements of convective flow inside a cylinder filled with a sodium hydroxide (NaOH) solution show that the plume's velocity can be increased tenfold as compared to a situation with no NaOH. This tremendous effect is predicted by a model with no adjusting parameters.
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Dates et versions

insu-04485671 , version 1 (01-03-2024)

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R. Tanaka, C. Almarcha, Y. Nagatsu, Yves Méheust, Patrice Meunier. Chemically Enhanced Convective Dissolution of CO2. Physical Review Letters, 2024, 132 (8), pp.084002. ⟨10.1103/PhysRevLett.132.084002⟩. ⟨insu-04485671⟩
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