A novel method to synthesize nesquehonite, MgCO3·. 3H2O, via reaction of a flux of gaseous CO2 with Mg chloride solution at ambient conditions, performed using a reactor, is here described. The reaction rate of the process is rapid, with deposition of abundant carbonate in few minutes. The results of a multi-disciplinary methodology, including SEM-EDAX, XRD,. ICP-AES and thermal analysis, suggest that the application of our method at industrial scale can be considered. Moreover, the. possibility to involve in the process saline wastewater as source of. Mg makes the method a promising complementary solution in the sequestration of anthropogenic CO2 at the expense of saline wastewater.
De Vito, C., Ferrini, V., Mignardi, S., Cagnetti, M., Leccese, F. (2012). Ex situ CO2 mineralization via nesquehonite: a first attempt for an industrial application. In Proc. of 11th International Conference on Environment and Electrical Engineering – EEEIC2012 (pp.323-327). IEEE [10.1109/EEEIC.2012.6221396].
Ex situ CO2 mineralization via nesquehonite: a first attempt for an industrial application
Cagnetti, Marco;LECCESE, Fabio
2012-01-01
Abstract
A novel method to synthesize nesquehonite, MgCO3·. 3H2O, via reaction of a flux of gaseous CO2 with Mg chloride solution at ambient conditions, performed using a reactor, is here described. The reaction rate of the process is rapid, with deposition of abundant carbonate in few minutes. The results of a multi-disciplinary methodology, including SEM-EDAX, XRD,. ICP-AES and thermal analysis, suggest that the application of our method at industrial scale can be considered. Moreover, the. possibility to involve in the process saline wastewater as source of. Mg makes the method a promising complementary solution in the sequestration of anthropogenic CO2 at the expense of saline wastewater.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
