The kinetics of catalyst-aided desorption of CO2 from CO2-loaded MEA (5 mol/dm(3)) and blended MEA-MDEA (7 mol/dm(3)) solutions at CO2 loadings from 0.3 to 0.5 mol CO2/mol amine were studied over a Lewis acid catalyst (gamma-A1203) and a Bronsted acid catalyst (H-ZSM-5) in an absorber desorber CO2 capture bench-scale plant (columns of 0.051 m ID and height of 1.067 m) at temperatures of 348-368 K. The results showed that the conversion increases relative to no catalyst for MEA were 55 and 74% while for MEA-MDEA, they were 65 and 85.2% with gamma-Al2O3 and H-ZSM-5, respectively. A comprehensive mechanistic LHHW rate model was developed for the catalytic CO2 desorption process. (C) 2019 Elsevier Ltd. All rights reserved.