Narrow fluidised beds arranged to exchange heat between a combustion chamber and a CO2 sorbent regenerator

Review and research needs of Ca-Looping systems modelling for post-combustion CO2 capture applications

“…Generally, it is proposed transferring heat to the calciner from a high temperature reactor through a metallic wall or through a working fluid. When looking for a coal-fired power plant, an air-fired combustor operating at a higher temperature than calciner reactor is proposed (Abanades et al, 2005;Grasa and Abanades, 2007;Strelow et al, 2012). This scheme requires from special metallic materials that have not yet been tested in practice as well as from large heat transfer areas between two high temperature fluidised beds, so the feasibility of this option is not clear despite its higher efficiency and lack of an ASU.…”