global-journal-of-research-in-engineering-c-chemical-engineering Global Journal of Research in Engineering - C: Chemical Engineering 0975-5861 2249-4596 Global Journals Publishing Group Incorporated 55613 Adsorption Kinetics and Mass Balance Mathematical Model of Monoethanolamine Surface-Modified Palm Shell Activated Carbon for Carbon Dioxide Dynamic Adsorption in Fixed Bed Column CO2 Adsorption Kinetics on MEA-Impregnated Carbon KhalilSaad Hashim ArouaMohamad Kheireddine MALAYSIA, University of Malaya 27 11 2023 23 C1 11 19

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.

 adsorption kinetics activated carbon impregnation MEA fixed bed column. Full Text

Dynamic adsorption kinetics results indicated that monoethanolamine-carbon dioxide (MEA-CO2) 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 CO2 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 CO2 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.