Packing Characterization for Post Combustion CO2 Capture: Mass Transfer Model Development

Three mass transfer properties: the effective area (ae), liquid film and gas film mass transfer coefficients (kL and kG) are measured consistently for eleven packings with different surface area and corrugation angle. The effective area and liquid film mass transfer coefficient increases with liquid...

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Bibliographic Details
Published in:Energy procedia 2014, Vol.63, p.1727-1744
Main Authors: Wang, Chao, Perry, Micah, Seibert, Frank, Rochelle, Gary
Format: Article
Language:English
Subjects:
CO2 capture
effective area
mass transfer coefficient
mass transfer model
structured packing
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Summary:Three mass transfer properties: the effective area (ae), liquid film and gas film mass transfer coefficients (kL and kG) are measured consistently for eleven packings with different surface area and corrugation angle. The effective area and liquid film mass transfer coefficient increases with liquid velocity while gas film mass transfer coefficient increases with gas velocity. The fractional effective area decreases with surface area and barely changes with corrugation angle. kL and kG increase as surface area increases or corrugation angle decreases. A new concept-mixing point density is proposed to represent the packing geometry influence on kL and kG. Correlations for ae, kL, and kG are developed including effects of gas and liquid rates and packing geometry.
ISSN:1876-6102
1876-6102
DOI:10.1016/j.egypro.2014.11.180