Potassium-based adsorbents

https://doi.org/10.1016/j.ccst.2021.100011 “Early in 2009, Zhao et al. investigated the decomposition kinetic behaviors of KHCO3 in TGA reactor. Provided that chemical reaction was the rate-limiting step, thermal decomposition process of

https://doi.org/10.1016/j.ccst.2021.100011 “The widely reported models such as the pseudo-first order kinetic model (PFO), pseudo-second order kinetic model (PSO), the Avrami fractional kinetic model and the

https://doi.org/10.1016/j.ccst.2021.100011 “A phenomenological kinetic model (PM) was developed to analyze the carbonation kinetics of the K2CO3/ZrO2 adsorbent, taking into account carbonation temperature, CO2 concentration and carbonation conversion Eqs. 16 and (17).

https://doi.org/10.1016/j.ccst.2021.100011 “Results indicated that DM could well reflect the attenuated activity of K2CO3 in dynamic breakthrough process, since the increased CO2 diffusion resistance, reduced pore volume and

https://doi.org/10.1016/j.ccst.2021.100011 “For gas-solid carbonation described by HM, the gas diffusion process could be rapid, and gas would penetrate everywhere into the porous adsorbent. Thus, the

https://doi.org/10.1016/j.ccst.2021.100011 “Linear driving force (LDF) model had been employed to evaluate the physical adsorption kinetics of CO2 over K2CO3/AC (Eq. 13). Physical and chemical adsorption coexisted in the CO2 capture process of K2CO3/AC.

https://doi.org/10.1016/j.ccst.2021.100011 “Loading K2CO3 on porous supports can enhance its overall CO2 sorption kinetics. Nasiman et al. proved that CO2 sorption over K2CO3-carbon composite proceeded about 1.5 or 2 fold

https://doi.org/10.1016/j.ccst.2021.100011 “Jayakumar et al. proposed a simple chemical reaction model (CRM) and Langmuir-Hinshelwood (L-H) model to validate the carbonation kinetic mechanisms of pure K2CO3 (Jayakumar et al., 2017). The

https://doi.org/10.1016/j.ccst.2021.100011 “TGA had been employed to study the carbonation kinetics of a single K2CO3 particle and supported K2CO3 adsorbent particle. Assuming that heat transfer in TGA reactor