Experimental Study on Mineral Dissolution and Carbonation Efficiency Applied to pH-Swing Mineral Carbonation for Improved CO2 Sequestration

Mineral carbonation incurs high operating costs, as large amounts of chemicals and energy must be used in the process. Its implementation on an industrial scale requires reducing expenditures consumption. Thus, this work aimed to investigate significant factors involved pH-swing mineral their effects CO2 capture efficiency. A central composite rotatable design (CCRD) was employed for optimizing operational parameters acid dissolution serpentinite. The results showed that temperature exerts a effect magnesium dissolution. By adjusting reaction 100 °C setting hydrochloric concentration 2.5 molar, 96% extraction achieved within 120 min 91% 30 reaction. optimal efficiency carbon dioxide 40–50%, at higher values than those found literature, 90% 150 bar pressures. It it is technically possible reduce time maintain levels above through present experiments.