초록 |
Climate change mediated by increased CO2 concentration in the atmosphere is one of the most significant challenges facing humanity. Mineral carbonation technology is considered as an attractive option to store CO2 for a long period in a stable, inert, and solid form. In addition, this technology is a feasible and verified technology where both CO2 conversion and treatment of waste solids containing alkaline earth metal occur simultaneously with integrated process. In this study, a newly proposed mineral carbonation technology using waste concrete as a raw material is evaluated. For a comprehensive assessment of the environmental and techno-economic performance of this CO2 capture and utilization option, CO2 lifecycle assessment (LCA) and techno-economic analysis (TEA) are conducted. Case analyses are performed with respect to the different feedstock of alkaline earth metal. |