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Dynamic adsorption kinetics results indicated that monoethanolamine-carbon dioxide (MEA-CO 2 ) reaction in fixed bed column packed with MEA-impregnated activated carbon (AC) particles is pseudo first order reaction. The controlling step (slow step) of adsorption is the mass transfer of CO 2 molecules form the feed gas bulk stream to the surface of the adsorbent through the boundary layer (external diffusion). A Dubinin-Astakhov and Avrami models showed that adsorption of CO 2 on MEA-impregnated activated carbon particles is homogeneous. The suggested mass balance model exhibited good agreement with the experimental results for both MEA-impregnated and non-impregnated AC, which they show also that there is no difference in adsorption rates between the two adsorption beds.
Saad Hashim Khalil. 2026. \u201cAdsorption Kinetics and Mass Balance Mathematical Model of Monoethanolamine Surface-Modified Palm Shell Activated Carbon for Carbon Dioxide Dynamic Adsorption in Fixed Bed Column\u201d. Global Journal of Research in Engineering - C: Chemical Engineering GJRE-C Volume 23 (GJRE Volume 23 Issue C1): .
Crossref Journal DOI 10.17406/gjre
Print ISSN 0975-5861
e-ISSN 2249-4596
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Total Score: 101
Country: Malaysia
Subject: Global Journal of Research in Engineering - C: Chemical Engineering
Authors: Saad Hashim Khalil (PhD/Dr. count: 0)
View Count (all-time): 240
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Publish Date: 2026 01, Fri
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Dynamic adsorption kinetics results indicated that monoethanolamine-carbon dioxide (MEA-CO 2 ) reaction in fixed bed column packed with MEA-impregnated activated carbon (AC) particles is pseudo first order reaction. The controlling step (slow step) of adsorption is the mass transfer of CO 2 molecules form the feed gas bulk stream to the surface of the adsorbent through the boundary layer (external diffusion). A Dubinin-Astakhov and Avrami models showed that adsorption of CO 2 on MEA-impregnated activated carbon particles is homogeneous. The suggested mass balance model exhibited good agreement with the experimental results for both MEA-impregnated and non-impregnated AC, which they show also that there is no difference in adsorption rates between the two adsorption beds.
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