https://doi.org/10.1016/j.gce.2021.11.009
“The iCCC technology can be achieved by designing and fabrication of dual-function materials (DFMs) which have both adsorptive and catalytic components. The adsorptive component usually consists of alkali metal oxides or carbonates, providing basic sites for CO2 capture from the flue gas in exhaust systems; while the catalytic component can in-situ convert the adsorbed CO2 into different value-added products, such as light hydrocarbons and commodity chemicals [20,21]. Therefore, high CO2 adsorption capacity, excellent catalytic activity, long-term stability, as well as cost-effectivity are the pursued properties of DFMs. However, iCCC has great challenges in making two processes matched with each other, not only caused by different reaction rates of CO2 adsorption and conversion, but also due to the difficulties in heat management between the exothermic CO2 capture and endothermic convention in most cases. More importantly, there is always a technical gap between research and real application, therefore, the engineering processes and reactor designs need a deeply comprehensive understanding of the kinetic and thermodynamic of iCCC process.”
“Fig. 1. Schematic diagrams of the comparison of routes of iCCC technology and conventional CCUS technologies.”