To analyze the influence of a precipitation mineralization reaction between dissolved ${\mathrm{CO}}_2$ and calcium ions on the convective transfer of ${\mathrm{CO}}_2$ toward an aqueous phase, the convective dissolution of ${\mathrm{CO}}_2$ into aqueous solutions of calcium hydroxyde $\left[\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\right]$ and calcium chloride $\left({\mathrm{CaCl}}_2\right)$ of various concentrations is studied experimentally. We show that different precipitation patterns develop in the aqueous solution depending on the nature and concentration of the reactant in the host phase. In the case of $\mathrm{Ca}{\left(\mathrm{OH}\right)}_2$, precipitation coupled to convection leads to vigorous convective mixing in the host phase and sedimentation of solid particles of calcium carbonate $\left({\mathrm{CaCO}}_3\right)$ down to the bulk of the reservoir. Conversely, dissolution of ${\mathrm{CO}}_2$ in buffered ${\mathrm{CaCl}}_2$ solutions leads to a stabilization of the buoyancy-driven convection due to a decrease in density and the adherence of the precipitate to the cell walls.

中文翻译：

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沉淀矿化反应对CO2对流溶解的影响：实验研究

分析沉淀矿化反应对溶解之间的影响 ${\mathrm{一氧化碳}}_2$ 与钙离子对流转移 ${\mathrm{一氧化碳}}_2$ 朝向水相，对流溶解 ${\mathrm{一氧化碳}}_2$ 进入氢氧化钙水溶液 $\left[钙{（哦）}_2\right]$ 和氯化钙 $（{\mathrm{氯化钙}}_2）$实验研究各种浓度。我们表明，取决于主体相中反应物的性质和浓度，水溶液中会出现不同的沉淀模式。如果是$钙{（哦）}_2$，与对流耦合的沉淀导致宿主相中剧烈的对流混合以及碳酸钙固体颗粒的沉降 $（{\mathrm{碳酸钙}}_3）$直到大部分的水库。相反，解散${\mathrm{一氧化碳}}_2$ 在缓冲中 ${\mathrm{氯化钙}}_2$ 由于密度的降低和沉淀物对细胞壁的粘附，溶液导致浮力驱动的对流稳定。