Effect of Reaction Temperature on Capture Using Potassium-Based Solid Sorbent in Bubbling Fluidized-Bed Reactor
Publication: Journal of Environmental Engineering
Volume 135, Issue 6
Abstract
We investigated the effects of carbonation and regeneration temperature on the capture characteristics using SorbKX35, a potassium-based solid sorbent in a bubbling fluidized-bed reactor. A dry sorbent, SorbKX35 consists of for absorption and supporters for mechanical strength. We also measured the physical properties of the sorbent, such as pore size, pore volume, and surface area after carbonation or regeneration, to confirm the extent of the reaction. With vapor pretreatment, nearly complete removal was initially achieved and maintained for about within a temperature range of with gas residence time. At lower temperature, capture was more effective during of carbonation. From the results of temperature programmed desorption and gas adsorption method (BET), we found that the regeneration of carbonated SorbKX35 was not complete at . The results obtained in this study can be used as basic data for designing and operating a large-scale capture process with two fluidized-bed reactors.
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Acknowledgments
This research was supported by a grant (Code M102KP010015-05K1601-01510) from Carbon Dioxide Reduction and Sequestration Research Center, one of the 21st Century Frontier Programs funded by the Ministry of Science and Technology of the Korean Government.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 135 • Issue 6 • June 2009
Pages: 473 - 477
Copyright
© 2009 ASCE.
History
Received: Mar 24, 2008
Accepted: Sep 8, 2008
Published online: May 15, 2009
Published in print: Jun 2009
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