An optimization framework to investigate the CO2 Capture Performance by MEA: Experimental and Statistical studies using Box-Behnken Design

The absorption of carbon dioxide gas by monoethanolamine (MEA) in the packed tower is the most common method for the CO2 capture. The present study describes the set-up and operation of a laboratory-scale CO2 capture unit in detail, as the closed cycle of the absorption/desorption process continuously operated at the different operating conditions. The effect of six independent variables was investigated on CO2 absorption in three levels. To analyse the results, Response Surface Box-Benhken design method was applied. The absorption unit was evaluated in terms of absorption percentage (Φ), the overall gas phase mass transfer coefficient (KGaV), and the specific heat duty of the reboiler (η).