Review on reactors for chemical looping process

Chemical looping technology is currently one of the hotspots in energy technology research. Its key technologies include the preparation of carrier materials and the design of reactors. In this paper, application prospects of chemical looping were described. The design principles of chemical looping reactor were summarized. The chemical looping reactors reported in concepts, in building or in operation were reviewed. The purposes and design criteria were discussed. Flow patterns, reaction mechanisms and control characteristics during operation should be investigated in macroscopic reactor when using micro/nano-particles as looping materials. Hydrodynamic, mass transfer, heat and reaction coupling mechanism in reactor should be studied and reaction-to-reactor multi-scale model should be constructed. Fully scaled chemical looping reactor by self-heat balance should be tested. More attentions should be paid to the development of efficient carbon/ash stripper with aid of numerical simulation in the future. © 2021, Editorial Board of CIESC Journal. All right reserved.