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http://dx.doi.org/10.9713/kcer.2012.50.4.654

Analysis of CO2 Capture Efficiency in Relation to the Inlet Moisture Content of the Regenerator in the Continuous Process by using Sorbent Analysis  

Lee, Do-Young (Graduate School of Green Energy Technology, Chungnam National University)
Kim, Ki-Chan (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Park, Young Cheol (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Han, Moon-Hee (Graduate School of Green Energy Technology, Chungnam National University)
Yi, Chang-Keun (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.50, no.4, 2012 , pp. 654-658 More about this Journal
Abstract
In this study, $CO_2$ capture efficiency in relation to the inlet moisture content of the regenerator was investigated using potassium-based sorbents in the continuous process composed of two bubbling fluidized-bed reactors, where solid outlet configuration in the regenerator was converted from underflow to overflow. XRD (X-ray Diffraction), SEM (Scanning Electron Microscope) and TGA were performed to find out the effect of water pre-treatment according to inlet moisture content in the regenerator. The $K_2CO_3{\cdot}1.5H_2O$ structure of solid sorbents has been increased as inlet moisture content of the regenerator increased. As a result, the $CO_2$ capture efficiency increased as the $K_2CO_3{\cdot}1.5H_2O$ structure of solid sorbents increased since the reactivity of the sorbents has been improved by that structure generated by the water pre-treatment. And $CO_2$ capture efficiency increased about 3~8% after sorbent outlet configuration of the regenerator was changed underflow to overflow.
Keywords
$CO_2$ Capture; Solid Sorbents; Bubbling Fluidized-bed Reactors; Overflow Standpipe; XRD;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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