Fig. 1: CO2 and mineral interactions are shown.
From: Suitability of rocks, minerals, and cement waste for CO2 removal via enhanced rock weathering
a CO2 present in the DAC closed loop versus time for different hydrated materials as shown. The dashed line represents the atmospheric CO2 present in the loop when closed and the average external atmospheric CO2 concentration. Accounting for the accuracy of the CO2 meter and the external atmospheric CO2 concentrations provides the basis for the gray box. b XRD patterns for each of the carbonated products after reactions with high concentration CO2 are presented. Peaks highlighted in light blue are hydromagnesite. Peaks highlighted in light gray are calcite.
