The CO 2 capture performance of K 2 CO 3 /Al 2 O 3 is investigated in the continuous CO 2 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 CO 2 removal is higher than 75%, and the total CO 2 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 H 2 O concentration, are investigated to evaluate the CO 2 sorption performance of the sorbent when carbonation and regeneration reactors are put to use, and results show that the CO 2 removal can reach more than 85% after optimizing the operation parameters. The results from this study prove the concept of the dry sorbent CO 2 capture process to be one of the viable methods for capturing CO 2 produced by coal-fired power plants.
No takes yet. Share an insight, caveat, or question.
Wu et al. (2013) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: