The increased demand of the world for energy and its reliance on fossil fuels ultimately contribute to the surge in the levels of carbon dioxide in the atmosphere. To achieve a green efficient carbon capture, a novel multi-component amine-amino acid solvent including methyldiethanolamine (MDEA), diisopropanolamine (DIPA), and Arginine (ARG) was designated for CO2 absorption in a T-microreactor. To assess the potential absorption of aqueous solutions of the desired mixed amines, the CO2 absorption percentage (AP) and the total volumetric gas-phase mass transfer coefficient (TGMTC) were investigated over a wide range of gas flow rate (60-240 mL/min), solvent flow rate (2-6 mL/min), at three MDEA:DIPA:ARG mixing concentrations of (28:8:4), (28:6:6), and (28:4:8)) wt%. The research findings demonstrate an increment of 31% in CO2 absorption percentage by reducing DIPA to 4 wt% and rising the arginine concentration to 8 wt% in ternary amine solutions. Additionally, the highest mass transfer coefficient was achieved 38.06 (kmol/m3.h.kPa) utilizing the aqueous mixture of MDEA+DIPA+ARG (28+4+8) wt%.
