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Abstract The removal of CO₂ from flue gases is one of the potential mitigation measures to address the climate change problem. Adsorption is a promising technology that is currently being developed. The scope of the present work is to study the mass and heat transfer profiles at multiscale levels for CO₂ adsorption and the effects of both macropores and micropores. A one-dimensional multi-scale model has been developed to produce breakthrough curves for CO₂ adsorption from gas streams using different capture materials. The model matched literature experimental data reasonably well for three different sorbents |