CO₂ hydration using carbonic ion solution

The carbon dioxide emission has been increased which can cause the global warming and other environmental impacts. The carbon sequestration process has been introduced as one of the method to reduce the amount of carbon dioxide in the atmosphere. Through mineral carbonation, carbon dioxide is stored in form of stable mineral carbonate such as calcium or magnesium. In this research, the mineral carbonation was performed by using carbonic ion solution which accelerated by carbonic anhydrase enzyme. Two parameters were being studied which are the effect of the CO₂ flowrate and CaCI₂ concentration towards hydration process of CO₂. These two parameters were been varies to study the effect towards hydration of CO₂. In this study, the CO₂ flowrates were adjusted to 200, 500 and 800 L/min. While, the CaCI₂ concentration were set up to 12.15,36 and 48 g/L. Then, the analysis of CaCO₃ powder were proceed using three type analyses which were Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD) and also Scanning Electron Microscope (SEM). From the results obtained, the higher CO₂ flowrates produced high amount of precipitated. Based on the plot, the highest amount of CaCO₃ powder was obtained at 800 L/min. Meanwhile, for the effect of CaCI₂ concentration, the amount of CaCO₃ obtained was increase when the CaCI₂ concentration was increased. According to the analyses performed, it showed that, the CaCO₃ powder produce the calcite phase of the CaCO₃.