Improving the gas–solids contact efficiency in a fluidized bed of CO2 adsorbent fine particles
文献信息
J. M. Valverde, F. Pontiga, C. Soria-Hoyo, M. A. S. Quintanilla, H. Moreno, F. J. Duran, M. J. Espin
A modified CO2 adsorbent is obtained by dry mixing of a Ca(OH)2 fine powder as received with a commercial silica nanopowder. Silica nanoparticles form light agglomerates of size of the order of tens of microns, which are uniformly fluidizable. These agglomerates act as dispersants of the Ca(OH)2 fine particles, which coat the nanoparticle agglomerates likely due to contact charging. Ca(OH)2 particles (CO2 adsorbent) are thus provided with a vehicle for uniform fluidization. In this way, the contact efficiency between the CO2 adsorbent and CO2 in the fluidized bed is greatly enhanced. Experimental results show that the improvement of Ca(OH)2 fluidizability serves to enhance the carbonation reaction in the fluidized bed.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











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