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Received May 21, 2004
Accepted September 30, 2004
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Mass Transfer of Carbon Dioxide in Aqueous Polyacrylamide Solution with Methyldiethanolamine

Division of Chemical Engineering, Pusan National University, Busan 609-735, Korea 1School of Environmental Science, Catholic University of Pusan, Busan 609-757, Korea 2Department of Chemical Engineering, Sogang University, Seoul 121-742, Korea
swpark@pusan.ac.kr
Korean Journal of Chemical Engineering, November 2004, 21(6), 1205-1211(7), 10.1007/BF02719495
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Abstract

Carbon dioxide was absorbed into aqueous polyacrylamide (PAA) solution containing methyl-diethanolamine (MDEA) in a flat-stirred vessel to investigate the effect of non-Newtonian rheological behavior of PAA on the rate of chemical absorption of CO2, where the reaction between CO2 and MDEA was assumed to be a first-order reaction with respect to the molar concentration of CO2 and MDEA, respectively. The liquid-side mass transfer coefficient (kL), which was obtained from the dimensionless empirical equation containing the viscoelasticity properties of a non-Newtonian liquid, was used to estimate the enhancement factor due to chemical reaction. PAA with elastic property of non-Newtonian liquid made the rate of chemical absorption of CO2 accelerate compared with a Newtonian liquid.

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