| 초록 |
In this study, characteristics of carbon dioxide (CO2) capture and its chemical conversion to calcium carbonate salt was studied. Indirect inorganic aqueous carbonation methods were applied and seawater-based wastewater was used as the calcium ion supplying source. The absorbent solutions of monoethanolamine (MEA), diethanolamine (DEA), and methyldiethanolamine (MDEA) were used with concentrations of 30 wt%. CO2 loading data for each absorbent solutions were provided. X-ray diffraction and scanning electron microscopy showed the crystal structure of the products to be aragonite mixed with vaterite as a result of carbonation. Furthermore, the CO2 capture capacity of each absorbent and the amount of CO2 desorbed by the carbonation reaction were investigated. The results may support the design of carbon capture and utilization plants and potential market research. |
