An Integrated Absorption–Mineralization Process for CO₂ Capture and Sequestration: Reaction Mechanism, Recycling Stability, and Energy Evaluation

An integrated absorption–mineralization process (IAM) was proposed to desorb and mineralize CO2 captured by amine solvents using the semidry desulfurization slag (DFS). Four typical amine solvents (monoethanolamine, diethanolamine, methyl-diethanolamine, and 2-amine-2-methyl-1-propanol) were investigated in the IAM process to evaluate the working capacity, recycling stability, and regeneration ability of the amine solvents. The reaction...