Potassium based sorbent development

https://doi.org/10.1016/j.ccst.2021.100011 “Zhao et al. found that carbonation performance of K2CO3/Al2O3 closely depended on the water pretreatment process (Zhao et al., 2012b; Zhao et al., 2012d). Seo et al. further demonstrated that the sorbKX35 subjected to

https://doi.org/10.1016/j.ccst.2021.100011 “Potassium-based adsorbents own the merits of low cost and high availability in scale-up application, while their carbonation capacities and kinetics need further improvements. Meanwhile,

https://doi.org/10.1016/j.ccst.2021.100011 “Impregnation and calcination parameters are important factors that need to be considered when the wet impregnation method was employed for preparing potassium-based adsorbents. Chalermsinsuwan

https://doi.org/10.1016/j.ccst.2021.100011 “Yang et al. prepared carbon aerogels (CAs) using the sol-gel method, and they loaded K2CO3 on the mesoporous supports to prepare the CA-potassium carbonate (KC) nanocomposites. The 7CA-KC

https://doi.org/10.1016/j.ccst.2021.100011 “To minimize the overall cost for CO2 capture, alkaline solid wastes including potassium feldspar, calcium aluminate cement, clay, Portland cement and fly ash were tried as supports, and CO2 capture capacities

https://doi.org/10.1016/j.ccst.2021.100011 “Metal oxides including SiO2, MgO, MgO/Al2O3, CaO, ZrO2, TiO2, TiO(OH)2, FeOOH and SnO2 have been utilized as supports (Cho et al., 2019; Cho et al., 2018; Cho et al., 2016; Lee et al., 2006a; Lee et al., 2014b; Li et al., 2011; Li et al.,

https://doi.org/10.1016/j.ccst.2021.100011 “Mesoporous Al2O3 has been widely utilized for supporting K2CO3 as solid CO2 adsorbents. The broad pore size distribution, especially the enriched mesoporous and macroporous structures, enable more

https://doi.org/10.1016/j.ccst.2021.100011 “Coconut shell-based activated carbon, coal-based activated carbon, wooden activated carbon, and carbon nanofibers (CNF) have been employed to preload K2CO3 for CO2 capture (Lee et al., 2006a; Meis et al., 2013; Querejeta et al., 2019; Zhao et al., 2009b).

https://doi.org/10.1016/j.ccst.2021.100011 “To enhance carbonation performance, different supports have been employed to prepare supported potassium-based adsorbents. Supports generally perform many different functions, e.g., provide a large

https://doi.org/10.1016/j.ccst.2021.100011 ” monoclinic and hexagonal K2CO3 exhibit different microstructures. Zhao et al. compared the carbonation reactivity of K2CO3 calcined from different precursors such as analytical pure K2CO3, K2CO3•1.5H2O and KHCO3.