Performance Comparison of Moving and Fluidized bed Sorption Systems for an Energy-efficient Solid Sorbent-Based Carbon Capture Process

AbstractAs a future post-combustion CCS technology, the solid sorbent-based process is extensively researched recently because lower energy penalty is expected thereof compared to that of the conventional amine scrubbing process. The type of gas-solid contactor of solid sorbent-based process has considerable impact on overall performance but systematic comparison of the different designs has not been reported yet. In this work, various sorption systems with different gas-solid contact types including i) moving-, ii) bubbling-, and iii) fast fluidized-bed using absorbents of amine supported sorbent are established. Mathematical models of each sorption system are developed from first principles and compared in terms of economy indicators. From the results, an optimal sorption system is discussed and a research direction of process design is suggested to improve the process economy of the solid sorbent-based carbon capture processes