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In relation to this article, we declare that there is no conflict of interest.
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Received February 26, 2016
Accepted August 11, 2016
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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Extrapolation of the Clausius-Clapeyron plot for estimating the CO2 adsorption capacities of zeolites at moderate temperature conditions

Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
whasahn@inha.ac.kr
Korean Journal of Chemical Engineering, January 2017, 34(1), 37-40(4), 10.1007/s11814-016-0230-3
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Abstract

CO2 adsorption capacity of zeolite 13X and Na+-chabazite at 473 K was estimated by extrapolating the CO2 adsorption isotherm data measured in the temperature range of 298 to 373 K by employing the Clausius.Clapeyron equation, and compared with those by gravimetric measurements using a TGA unit and by the breakthrough curves obtained using a gas mixture (CO2 30% in N2 balance) in a fixed bed adsorption unit. All three methods produced comparable CO2 adsorption capacities, and justified the suggested experimental approach of the extrapolation procedure using the low temperature isotherm data for estimating gas adsorption capacity at high temperature conditions.

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