With the increase of the the global energy consumption has also been increasing, which is about 18 TW nowadays (Dudley, 2018), the anthropogenic CO2 emissions have also been increasing, which is about 410 ppm nowadays (Dudley, 2018; Tans & Keeling, 2019). Numerous evidences have been reported indicating that high atmospheric CO2 concentration can have significant greenhouse effect and thus lead to global warming and climate change (Pachauri et al, 2014; Hansen et al, 2013). Therefore, measures need to be taken to control and reduce the atmospheric CO2 concentration.
In such circumstance, carbon capture, utilization and storage (CCUS) technologies have been proposed and developed to close the carbon cycle. Mineral carbonation (MC) is one of the CCUS technologies, which mimics the natural silicate weathering process to react CO2 with silicate materials so that carbon can be stabilized in the form of insoluble carbonates for permanent carbon storage (Seifritz, 1990; Lackner et al, 1995). Both Ca- or Mg-bearing silicate minerals and alkaline silicate industrial wastes can be employed as the feedstock for mineral carbonation (Sanna et al, 2014; Gadikota et al, 2014; Park, 2005; Park & Fan, 2004; Park et al, 2003; Park & Zhou, 2017; Zhou, 2014; Zhao, 2014; Swanson, 2014). While they share similar chemistries and total Mg and Ca contents, different MC feedstock can lead to different challenges for CCUS.
https://doi.org/10.7916/d8-56d6-1q70