Because of their high magnesium content, ultramafic rocks are considered excellent candidates for CO2 sequestration through mineral carbonation. Despite extensive studies on mineral carbonation and the reactivity of ultramafic rocks in subsurface conditions, few works have explored their direct application as reactive filtration media for carbon capture under simulated industrial flue-gas environments. This study explores the carbon capture and mineralization potential of ultramafic rock powders when exposed to flue gases generated from combustion of a crude oil and mesquite-derived charcoal.
Materials and Methods
In almost all experimental studies conducted thus far, the focus has been on the physicochemical conditions of mafic-ultramafic rocks and their constituent reactive minerals. However, very few of these studies have integrated mineralogical-petrographical investigations with X-ray diffraction (XRD), thermogravimetric analysis and differential scanning calorimetry (TGA/DSC), and Fourier transform infrared (FTIR) spectroscopy.
In this study, various ultramafic rocks with differing olivine and serpentine contents were analyzed to determine CO2-uptake specifications.
