The CO2 capture performance of K2CO3/Al2O3 is investigated in the continuous CO2 sorption-desorption system with three fluidized-bed reactors (two carbonation reactors and one regeneration reactor). A total of 10 Nm(3)/h of simulated flue gas is treated in this system. The first step of CO2 removal is higher than 75%, and the total CO2 removal reaches 96% after further sorption in the second step, a fairly constant state during the test. The sorbent shows excellent structural stability, and the sulfation percentages of the sorbent in the carbonation and regeneration reactors are 1.3 and 1.1%, respectively. Effects of several operation parameters, such as bed height, solid circulation rate, carbonation temperature, regeneration temperature, fluidization number, and H2O concentration, are investigated to evaluate the CO2 sorption performance of the sorbent when carbonation and regeneration reactors are put to use, and results show that the CO2 removal can reach more than 85% after optimizing the operation parameters. The results from this study prove the concept of the dry sorbent CO2 capture process to be one of the viable methods for capturing CO2 produced by coal-fired power plants.